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-rw-r--r--progs/tests/.gitignore17
-rw-r--r--progs/tests/Makefile17
-rw-r--r--progs/tests/SConscript12
-rw-r--r--progs/tests/afsmultiarb.c2
-rw-r--r--progs/tests/dinoshade.c912
-rw-r--r--progs/tests/fbotexture.c621
-rw-r--r--progs/tests/floattex.c43
-rw-r--r--progs/tests/getteximage.c217
-rw-r--r--progs/tests/glutfx.c189
-rw-r--r--progs/tests/jkrahntest.c2
-rw-r--r--progs/tests/mipmap_comp.c295
-rw-r--r--progs/tests/mipmap_view.c282
-rw-r--r--progs/tests/occlude.c234
-rw-r--r--progs/tests/projtex.c1030
-rw-r--r--progs/tests/scissor-viewport.c138
-rw-r--r--progs/tests/scissor.c168
-rw-r--r--progs/tests/shader_api.c8
-rw-r--r--progs/tests/streaming_rect.c327
-rw-r--r--progs/tests/texcompress2.c23
-rw-r--r--progs/tests/texdown.c477
-rw-r--r--progs/tests/texobj.c284
-rw-r--r--progs/tests/vparray.c2
-rw-r--r--progs/tests/vptest1.c2
23 files changed, 2642 insertions, 2660 deletions
diff --git a/progs/tests/.gitignore b/progs/tests/.gitignore
index e6369de3ab..d6a8538767 100644
--- a/progs/tests/.gitignore
+++ b/progs/tests/.gitignore
@@ -16,22 +16,20 @@ blendminmax
blendsquare
blendxor
bufferobj
-bumpmap
bug_3050
bug_3101
bug_3195
bug_texstore_i8
+bumpmap
calibrate_rast
copypixrate
crossbar
cva
-dinoshade
drawbuffers
extfuncs.h
exactrast
fbotest1
fbotest2
-fbotexture
fillrate
floattex
fog
@@ -40,6 +38,7 @@ fptest1
fptexture
getprocaddress
getproclist.h
+glutfx
interleave
invert
jkrahntest
@@ -49,6 +48,7 @@ mapbufrange
mapvbo
minmag
mipgen
+mipmap_comp
mipmap_limits
mipmap_view
multipal
@@ -56,30 +56,31 @@ no_s3tc
packedpixels
pbo
prog_parameter
-projtex
quads
random
readrate
readtex.c
readtex.h
rubberband
+scissor
+scissor-viewport
seccolor
-sharedtex
shader_api
shaderutil.c
shaderutil.h
+sharedtex
stencil_twoside
-stencil_wrap
stencilwrap
stencil_wrap
+streaming_rect
subtex
subtexrate
tex1d
-texcmp
texcompress2
+texdown
texfilt
-texgenmix
texline
+texobj
texobjshare
texrect
texwrap
diff --git a/progs/tests/Makefile b/progs/tests/Makefile
index 58ea5690df..5069817be3 100644
--- a/progs/tests/Makefile
+++ b/progs/tests/Makefile
@@ -37,19 +37,19 @@ SOURCES = \
copypixrate.c \
crossbar.c \
cva.c \
- dinoshade.c \
drawbuffers.c \
exactrast.c \
floattex.c \
fbotest1.c \
fbotest2.c \
- fbotexture.c \
fillrate.c \
fog.c \
fogcoord.c \
fptest1.c \
fptexture.c \
getprocaddress.c \
+ getteximage.c \
+ glutfx.c \
interleave.c \
invert.c \
jkrahntest.c \
@@ -59,6 +59,7 @@ SOURCES = \
mapvbo.c \
minmag.c \
mipgen.c \
+ mipmap_comp.c \
mipmap_limits.c \
mipmap_view.c \
multipal.c \
@@ -66,23 +67,27 @@ SOURCES = \
packedpixels.c \
pbo.c \
prog_parameter.c \
- projtex.c \
quads.c \
random.c \
readrate.c \
rubberband.c \
+ scissor.c \
+ scissor-viewport.c \
seccolor.c \
shader_api.c \
sharedtex.c \
stencil_twoside.c \
stencilwrap.c \
stencil_wrap.c \
+ streaming_rect \
subtex \
subtexrate.c \
tex1d.c \
texcompress2.c \
+ texdown \
texfilt.c \
texline.c \
+ texobj.c \
texobjshare.c \
texrect.c \
texwrap.c \
@@ -201,10 +206,10 @@ fillrate.o: fillrate.c readtex.h
floattex: floattex.o readtex.o shaderutil.o
- $(CC) $(CFLAGS) $(LDFLAGS) floattex.o readtex.o shaderutil.o $(LIBS) -o $@
+ $(APP_CC) $(CFLAGS) $(LDFLAGS) floattex.o readtex.o shaderutil.o $(LIBS) -o $@
floattex.o: floattex.c readtex.h shaderutil.h
- $(CC) -c $(INCLUDES) $(CFLAGS) $(DEFINES) floattex.c -o $@
+ $(APP_CC) -c $(INCLUDES) $(CFLAGS) $(DEFINES) floattex.c -o $@
readtex.o: readtex.c
@@ -230,7 +235,7 @@ shaderutil.h: $(TOP)/progs/util/shaderutil.h
cp $< .
shaderutil.o: shaderutil.c shaderutil.h
- $(CC) -c -I$(INCDIR) $(CFLAGS) shaderutil.c
+ $(APP_CC) -c -I$(INCDIR) $(INCLUDES) $(CFLAGS) shaderutil.c
diff --git a/progs/tests/SConscript b/progs/tests/SConscript
index bf1e7f8a7d..9d89ff6a0d 100644
--- a/progs/tests/SConscript
+++ b/progs/tests/SConscript
@@ -42,8 +42,8 @@ progs = [
'arbfptest1',
'arbfptexture',
'arbfptrig',
- 'arbnpot-mipmap',
'arbnpot',
+ 'arbnpot-mipmap',
'arbvptest1',
'arbvptest3',
'arbvptorus',
@@ -61,19 +61,18 @@ progs = [
'copypixrate',
'crossbar',
'cva',
- 'dinoshade',
'drawbuffers',
'exactrast',
'ext422square',
'fbotest1',
'fbotest2',
- 'fbotexture',
'fillrate',
'floattex',
'fog',
'fogcoord',
'fptest1',
'fptexture',
+ 'glutfx',
'interleave',
'invert',
'lineclip',
@@ -82,6 +81,7 @@ progs = [
'mapvbo',
'minmag',
'mipgen',
+ 'mipmap_comp',
'mipmap_limits',
'mipmap_view',
'multipal',
@@ -91,24 +91,28 @@ progs = [
'packedpixels',
'pbo',
'prog_parameter',
- 'projtex',
'quads',
'random',
'readrate',
'rubberband',
+ 'scissor',
+ 'scissor-viewport',
'seccolor',
'shader_api',
'stencil_twoside',
'stencil_wrap',
'stencilwrap',
+ 'streaming_rect',
'subtex',
'subtexrate',
'tex1d',
'texcmp',
'texcompress2',
+ 'texdown',
'texfilt',
'texgenmix',
'texline',
+ 'texobj',
'texrect',
'texwrap',
'unfilledclip',
diff --git a/progs/tests/afsmultiarb.c b/progs/tests/afsmultiarb.c
index 162ab19493..ca25a4d75b 100644
--- a/progs/tests/afsmultiarb.c
+++ b/progs/tests/afsmultiarb.c
@@ -442,8 +442,8 @@ int main( int argc, char *argv[] )
glutInitWindowSize( 300, 300 );
glutInitWindowPosition( 0, 0 );
glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE );
- glewInit();
glutCreateWindow(argv[0] );
+ glewInit();
Init( argc, argv );
diff --git a/progs/tests/dinoshade.c b/progs/tests/dinoshade.c
deleted file mode 100644
index fb7c3f4535..0000000000
--- a/progs/tests/dinoshade.c
+++ /dev/null
@@ -1,912 +0,0 @@
-
-/* Copyright (c) Mark J. Kilgard, 1994, 1997. */
-
-/* This program is freely distributable without licensing fees
- and is provided without guarantee or warrantee expressed or
- implied. This program is -not- in the public domain. */
-
-/* Example for PC game developers to show how to *combine* texturing,
- reflections, and projected shadows all in real-time with OpenGL.
- Robust reflections use stenciling. Robust projected shadows
- use both stenciling and polygon offset. PC game programmers
- should realize that neither stenciling nor polygon offset are
- supported by Direct3D, so these real-time rendering algorithms
- are only really viable with OpenGL.
-
- The program has modes for disabling the stenciling and polygon
- offset uses. It is worth running this example with these features
- toggled off so you can see the sort of artifacts that result.
-
- Notice that the floor texturing, reflections, and shadowing
- all co-exist properly. */
-
-/* When you run this program: Left mouse button controls the
- view. Middle mouse button controls light position (left &
- right rotates light around dino; up & down moves light
- position up and down). Right mouse button pops up menu. */
-
-/* Check out the comments in the "redraw" routine to see how the
- reflection blending and surface stenciling is done. You can
- also see in "redraw" how the projected shadows are rendered,
- including the use of stenciling and polygon offset. */
-
-/* This program is derived from glutdino.c */
-
-/* Compile: cc -o dinoshade dinoshade.c -lglut -lGLU -lGL -lXmu -lXext -lX11 -lm */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <math.h> /* for cos(), sin(), and sqrt() */
-#include <stddef.h> /* for ptrdiff_t, referenced by GL.h when GL_GLEXT_LEGACY defined */
-#ifdef _WIN32
-#include <windows.h>
-#endif
-#define GL_GLEXT_LEGACY
-#include <GL/glew.h> /* OpenGL Utility Toolkit header */
-#include <GL/glut.h> /* OpenGL Utility Toolkit header */
-
-/* Some <math.h> files do not define M_PI... */
-#ifndef M_PI
-#define M_PI 3.14159265358979323846
-#endif
-
-/* Variable controlling various rendering modes. */
-static int stencilReflection = 1, stencilShadow = 1, offsetShadow = 1;
-static int renderShadow = 1, renderDinosaur = 1, renderReflection = 1;
-static int linearFiltering = 0, useMipmaps = 0, useTexture = 1;
-static int reportSpeed = 0;
-static int animation = 1;
-static GLboolean lightSwitch = GL_TRUE;
-static int directionalLight = 1;
-static int forceExtension = 0;
-
-/* Time varying or user-controled variables. */
-static float jump = 0.0;
-static float lightAngle = 0.0, lightHeight = 20;
-GLfloat angle = -150; /* in degrees */
-GLfloat angle2 = 30; /* in degrees */
-
-int moving, startx, starty;
-int lightMoving = 0, lightStartX, lightStartY;
-
-enum {
- MISSING, EXTENSION, ONE_DOT_ONE
-};
-int polygonOffsetVersion;
-
-static GLdouble bodyWidth = 3.0;
-/* *INDENT-OFF* */
-static GLfloat body[][2] = { {0, 3}, {1, 1}, {5, 1}, {8, 4}, {10, 4}, {11, 5},
- {11, 11.5}, {13, 12}, {13, 13}, {10, 13.5}, {13, 14}, {13, 15}, {11, 16},
- {8, 16}, {7, 15}, {7, 13}, {8, 12}, {7, 11}, {6, 6}, {4, 3}, {3, 2},
- {1, 2} };
-static GLfloat arm[][2] = { {8, 10}, {9, 9}, {10, 9}, {13, 8}, {14, 9}, {16, 9},
- {15, 9.5}, {16, 10}, {15, 10}, {15.5, 11}, {14.5, 10}, {14, 11}, {14, 10},
- {13, 9}, {11, 11}, {9, 11} };
-static GLfloat leg[][2] = { {8, 6}, {8, 4}, {9, 3}, {9, 2}, {8, 1}, {8, 0.5}, {9, 0},
- {12, 0}, {10, 1}, {10, 2}, {12, 4}, {11, 6}, {10, 7}, {9, 7} };
-static GLfloat eye[][2] = { {8.75, 15}, {9, 14.7}, {9.6, 14.7}, {10.1, 15},
- {9.6, 15.25}, {9, 15.25} };
-static GLfloat lightPosition[4];
-static GLfloat lightColor[] = {0.8, 1.0, 0.8, 1.0}; /* green-tinted */
-static GLfloat skinColor[] = {0.1, 1.0, 0.1, 1.0}, eyeColor[] = {1.0, 0.2, 0.2, 1.0};
-/* *INDENT-ON* */
-
-/* Nice floor texture tiling pattern. */
-static char *circles[] = {
- "....xxxx........",
- "..xxxxxxxx......",
- ".xxxxxxxxxx.....",
- ".xxx....xxx.....",
- "xxx......xxx....",
- "xxx......xxx....",
- "xxx......xxx....",
- "xxx......xxx....",
- ".xxx....xxx.....",
- ".xxxxxxxxxx.....",
- "..xxxxxxxx......",
- "....xxxx........",
- "................",
- "................",
- "................",
- "................",
-};
-
-static void
-makeFloorTexture(void)
-{
- GLubyte floorTexture[16][16][3];
- GLubyte *loc;
- int s, t;
-
- /* Setup RGB image for the texture. */
- loc = (GLubyte*) floorTexture;
- for (t = 0; t < 16; t++) {
- for (s = 0; s < 16; s++) {
- if (circles[t][s] == 'x') {
- /* Nice green. */
- loc[0] = 0x1f;
- loc[1] = 0x8f;
- loc[2] = 0x1f;
- } else {
- /* Light gray. */
- loc[0] = 0xaa;
- loc[1] = 0xaa;
- loc[2] = 0xaa;
- }
- loc += 3;
- }
- }
-
- glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
-
- if (useMipmaps) {
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
- GL_LINEAR_MIPMAP_LINEAR);
- gluBuild2DMipmaps(GL_TEXTURE_2D, 3, 16, 16,
- GL_RGB, GL_UNSIGNED_BYTE, floorTexture);
- } else {
- if (linearFiltering) {
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
- } else {
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
- }
- glTexImage2D(GL_TEXTURE_2D, 0, 3, 16, 16, 0,
- GL_RGB, GL_UNSIGNED_BYTE, floorTexture);
- }
-}
-
-enum {
- X, Y, Z, W
-};
-enum {
- A, B, C, D
-};
-
-/* Create a matrix that will project the desired shadow. */
-void
-shadowMatrix(GLfloat shadowMat[4][4],
- GLfloat groundplane[4],
- GLfloat lightpos[4])
-{
- GLfloat dot;
-
- /* Find dot product between light position vector and ground plane normal. */
- dot = groundplane[X] * lightpos[X] +
- groundplane[Y] * lightpos[Y] +
- groundplane[Z] * lightpos[Z] +
- groundplane[W] * lightpos[W];
-
- shadowMat[0][0] = dot - lightpos[X] * groundplane[X];
- shadowMat[1][0] = 0.f - lightpos[X] * groundplane[Y];
- shadowMat[2][0] = 0.f - lightpos[X] * groundplane[Z];
- shadowMat[3][0] = 0.f - lightpos[X] * groundplane[W];
-
- shadowMat[X][1] = 0.f - lightpos[Y] * groundplane[X];
- shadowMat[1][1] = dot - lightpos[Y] * groundplane[Y];
- shadowMat[2][1] = 0.f - lightpos[Y] * groundplane[Z];
- shadowMat[3][1] = 0.f - lightpos[Y] * groundplane[W];
-
- shadowMat[X][2] = 0.f - lightpos[Z] * groundplane[X];
- shadowMat[1][2] = 0.f - lightpos[Z] * groundplane[Y];
- shadowMat[2][2] = dot - lightpos[Z] * groundplane[Z];
- shadowMat[3][2] = 0.f - lightpos[Z] * groundplane[W];
-
- shadowMat[X][3] = 0.f - lightpos[W] * groundplane[X];
- shadowMat[1][3] = 0.f - lightpos[W] * groundplane[Y];
- shadowMat[2][3] = 0.f - lightpos[W] * groundplane[Z];
- shadowMat[3][3] = dot - lightpos[W] * groundplane[W];
-
-}
-
-/* Find the plane equation given 3 points. */
-void
-findPlane(GLfloat plane[4],
- GLfloat v0[3], GLfloat v1[3], GLfloat v2[3])
-{
- GLfloat vec0[3], vec1[3];
-
- /* Need 2 vectors to find cross product. */
- vec0[X] = v1[X] - v0[X];
- vec0[Y] = v1[Y] - v0[Y];
- vec0[Z] = v1[Z] - v0[Z];
-
- vec1[X] = v2[X] - v0[X];
- vec1[Y] = v2[Y] - v0[Y];
- vec1[Z] = v2[Z] - v0[Z];
-
- /* find cross product to get A, B, and C of plane equation */
- plane[A] = vec0[Y] * vec1[Z] - vec0[Z] * vec1[Y];
- plane[B] = -(vec0[X] * vec1[Z] - vec0[Z] * vec1[X]);
- plane[C] = vec0[X] * vec1[Y] - vec0[Y] * vec1[X];
-
- plane[D] = -(plane[A] * v0[X] + plane[B] * v0[Y] + plane[C] * v0[Z]);
-}
-
-void
-extrudeSolidFromPolygon(GLfloat data[][2], unsigned int dataSize,
- GLdouble thickness, GLuint side, GLuint edge, GLuint whole)
-{
- static GLUtriangulatorObj *tobj = NULL;
- GLdouble vertex[3], dx, dy, len;
- int i;
- int count = (int) (dataSize / (2 * sizeof(GLfloat)));
-
- if (tobj == NULL) {
- tobj = gluNewTess(); /* create and initialize a GLU
- polygon tesselation object */
- gluTessCallback(tobj, GLU_BEGIN, glBegin);
- gluTessCallback(tobj, GLU_VERTEX, glVertex2fv); /* semi-tricky */
- gluTessCallback(tobj, GLU_END, glEnd);
- }
- glNewList(side, GL_COMPILE);
- glShadeModel(GL_SMOOTH); /* smooth minimizes seeing
- tessellation */
- gluBeginPolygon(tobj);
- for (i = 0; i < count; i++) {
- vertex[0] = data[i][0];
- vertex[1] = data[i][1];
- vertex[2] = 0;
- gluTessVertex(tobj, vertex, data[i]);
- }
- gluEndPolygon(tobj);
- glEndList();
- glNewList(edge, GL_COMPILE);
- glShadeModel(GL_FLAT); /* flat shade keeps angular hands
- from being "smoothed" */
- glBegin(GL_QUAD_STRIP);
- for (i = 0; i <= count; i++) {
-#if 1 /* weird, but seems to be legal */
- /* mod function handles closing the edge */
- glVertex3f(data[i % count][0], data[i % count][1], 0.0);
- glVertex3f(data[i % count][0], data[i % count][1], thickness);
- /* Calculate a unit normal by dividing by Euclidean
- distance. We * could be lazy and use
- glEnable(GL_NORMALIZE) so we could pass in * arbitrary
- normals for a very slight performance hit. */
- dx = data[(i + 1) % count][1] - data[i % count][1];
- dy = data[i % count][0] - data[(i + 1) % count][0];
- len = sqrt(dx * dx + dy * dy);
- glNormal3f(dx / len, dy / len, 0.0);
-#else /* the nice way of doing it */
- /* Calculate a unit normal by dividing by Euclidean
- distance. We * could be lazy and use
- glEnable(GL_NORMALIZE) so we could pass in * arbitrary
- normals for a very slight performance hit. */
- dx = data[i % count][1] - data[(i - 1 + count) % count][1];
- dy = data[(i - 1 + count) % count][0] - data[i % count][0];
- len = sqrt(dx * dx + dy * dy);
- glNormal3f(dx / len, dy / len, 0.0);
- /* mod function handles closing the edge */
- glVertex3f(data[i % count][0], data[i % count][1], 0.0);
- glVertex3f(data[i % count][0], data[i % count][1], thickness);
-#endif
- }
- glEnd();
- glEndList();
- glNewList(whole, GL_COMPILE);
- glFrontFace(GL_CW);
- glCallList(edge);
- glNormal3f(0.0, 0.0, -1.0); /* constant normal for side */
- glCallList(side);
- glPushMatrix();
- glTranslatef(0.0, 0.0, thickness);
- glFrontFace(GL_CCW);
- glNormal3f(0.0, 0.0, 1.0); /* opposite normal for other side */
- glCallList(side);
- glPopMatrix();
- glEndList();
-}
-
-/* Enumerants for refering to display lists. */
-typedef enum {
- RESERVED, BODY_SIDE, BODY_EDGE, BODY_WHOLE, ARM_SIDE, ARM_EDGE, ARM_WHOLE,
- LEG_SIDE, LEG_EDGE, LEG_WHOLE, EYE_SIDE, EYE_EDGE, EYE_WHOLE
-} displayLists;
-
-static void
-makeDinosaur(void)
-{
- extrudeSolidFromPolygon(body, sizeof(body), bodyWidth,
- BODY_SIDE, BODY_EDGE, BODY_WHOLE);
- extrudeSolidFromPolygon(arm, sizeof(arm), bodyWidth / 4,
- ARM_SIDE, ARM_EDGE, ARM_WHOLE);
- extrudeSolidFromPolygon(leg, sizeof(leg), bodyWidth / 2,
- LEG_SIDE, LEG_EDGE, LEG_WHOLE);
- extrudeSolidFromPolygon(eye, sizeof(eye), bodyWidth + 0.2,
- EYE_SIDE, EYE_EDGE, EYE_WHOLE);
-}
-
-static void
-drawDinosaur(void)
-
-{
- glPushMatrix();
- /* Translate the dinosaur to be at (0,8,0). */
- glTranslatef(-8, 0, -bodyWidth / 2);
- glTranslatef(0.0, jump, 0.0);
- glMaterialfv(GL_FRONT, GL_DIFFUSE, skinColor);
- glCallList(BODY_WHOLE);
- glTranslatef(0.0, 0.0, bodyWidth);
- glCallList(ARM_WHOLE);
- glCallList(LEG_WHOLE);
- glTranslatef(0.0, 0.0, -bodyWidth - bodyWidth / 4);
- glCallList(ARM_WHOLE);
- glTranslatef(0.0, 0.0, -bodyWidth / 4);
- glCallList(LEG_WHOLE);
- glTranslatef(0.0, 0.0, bodyWidth / 2 - 0.1);
- glMaterialfv(GL_FRONT, GL_DIFFUSE, eyeColor);
- glCallList(EYE_WHOLE);
- glPopMatrix();
-}
-
-static GLfloat floorVertices[4][3] = {
- { -20.0, 0.0, 20.0 },
- { 20.0, 0.0, 20.0 },
- { 20.0, 0.0, -20.0 },
- { -20.0, 0.0, -20.0 },
-};
-
-/* Draw a floor (possibly textured). */
-static void
-drawFloor(void)
-{
- glDisable(GL_LIGHTING);
-
- if (useTexture) {
- glEnable(GL_TEXTURE_2D);
- }
-
- glBegin(GL_QUADS);
- glTexCoord2f(0.0, 0.0);
- glVertex3fv(floorVertices[0]);
- glTexCoord2f(0.0, 16.0);
- glVertex3fv(floorVertices[1]);
- glTexCoord2f(16.0, 16.0);
- glVertex3fv(floorVertices[2]);
- glTexCoord2f(16.0, 0.0);
- glVertex3fv(floorVertices[3]);
- glEnd();
-
- if (useTexture) {
- glDisable(GL_TEXTURE_2D);
- }
-
- glEnable(GL_LIGHTING);
-}
-
-static GLfloat floorPlane[4];
-static GLfloat floorShadow[4][4];
-
-static void
-redraw(void)
-{
- int start, end;
-
- if (reportSpeed) {
- start = glutGet(GLUT_ELAPSED_TIME);
- }
-
- /* Clear; default stencil clears to zero. */
- if ((stencilReflection && renderReflection) || (stencilShadow && renderShadow)) {
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
- } else {
- /* Avoid clearing stencil when not using it. */
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
- }
-
- /* Reposition the light source. */
- lightPosition[0] = 12*cos(lightAngle);
- lightPosition[1] = lightHeight;
- lightPosition[2] = 12*sin(lightAngle);
- if (directionalLight) {
- lightPosition[3] = 0.0;
- } else {
- lightPosition[3] = 1.0;
- }
-
- shadowMatrix(floorShadow, floorPlane, lightPosition);
-
- glPushMatrix();
- /* Perform scene rotations based on user mouse input. */
- glRotatef(angle2, 1.0, 0.0, 0.0);
- glRotatef(angle, 0.0, 1.0, 0.0);
-
- /* Tell GL new light source position. */
- glLightfv(GL_LIGHT0, GL_POSITION, lightPosition);
-
- if (renderReflection) {
- if (stencilReflection) {
- /* We can eliminate the visual "artifact" of seeing the "flipped"
- dinosaur underneath the floor by using stencil. The idea is
- draw the floor without color or depth update but so that
- a stencil value of one is where the floor will be. Later when
- rendering the dinosaur reflection, we will only update pixels
- with a stencil value of 1 to make sure the reflection only
- lives on the floor, not below the floor. */
-
- /* Don't update color or depth. */
- glDisable(GL_DEPTH_TEST);
- glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
-
- /* Draw 1 into the stencil buffer. */
- glEnable(GL_STENCIL_TEST);
- glStencilOp(GL_REPLACE, GL_REPLACE, GL_REPLACE);
- glStencilFunc(GL_ALWAYS, 1, 0xffffffff);
-
- /* Now render floor; floor pixels just get their stencil set to 1. */
- drawFloor();
-
- /* Re-enable update of color and depth. */
- glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
- glEnable(GL_DEPTH_TEST);
-
- /* Now, only render where stencil is set to 1. */
- glStencilFunc(GL_EQUAL, 1, 0xffffffff); /* draw if ==1 */
- glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
- }
-
- glPushMatrix();
-
- /* The critical reflection step: Reflect dinosaur through the floor
- (the Y=0 plane) to make a relection. */
- glScalef(1.0, -1.0, 1.0);
-
- /* Reflect the light position. */
- glLightfv(GL_LIGHT0, GL_POSITION, lightPosition);
-
- /* To avoid our normals getting reversed and hence botched lighting
- on the reflection, turn on normalize. */
- glEnable(GL_NORMALIZE);
- glCullFace(GL_FRONT);
-
- /* Draw the reflected dinosaur. */
- drawDinosaur();
-
- /* Disable noramlize again and re-enable back face culling. */
- glDisable(GL_NORMALIZE);
- glCullFace(GL_BACK);
-
- glPopMatrix();
-
- /* Switch back to the unreflected light position. */
- glLightfv(GL_LIGHT0, GL_POSITION, lightPosition);
-
- if (stencilReflection) {
- glDisable(GL_STENCIL_TEST);
- }
- }
-
- /* Back face culling will get used to only draw either the top or the
- bottom floor. This let's us get a floor with two distinct
- appearances. The top floor surface is reflective and kind of red.
- The bottom floor surface is not reflective and blue. */
-
- /* Draw "bottom" of floor in blue. */
- glFrontFace(GL_CW); /* Switch face orientation. */
- glColor4f(0.1, 0.1, 0.7, 1.0);
- drawFloor();
- glFrontFace(GL_CCW);
-
- if (renderShadow) {
- if (stencilShadow) {
- /* Draw the floor with stencil value 3. This helps us only
- draw the shadow once per floor pixel (and only on the
- floor pixels). */
- glEnable(GL_STENCIL_TEST);
- glStencilFunc(GL_ALWAYS, 3, 0xffffffff);
- glStencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);
- }
- }
-
- /* Draw "top" of floor. Use blending to blend in reflection. */
- glEnable(GL_BLEND);
- glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
- glColor4f(0.7, 0.0, 0.0, 0.3);
- glColor4f(1.0, 1.0, 1.0, 0.3);
- drawFloor();
- glDisable(GL_BLEND);
-
- if (renderDinosaur) {
- /* Draw "actual" dinosaur, not its reflection. */
- drawDinosaur();
- }
-
- if (renderShadow) {
-
- /* Render the projected shadow. */
-
- if (stencilShadow) {
-
- /* Now, only render where stencil is set above 2 (ie, 3 where
- the top floor is). Update stencil with 2 where the shadow
- gets drawn so we don't redraw (and accidently reblend) the
- shadow). */
- glStencilFunc(GL_LESS, 2, 0xffffffff); /* draw if ==1 */
- glStencilOp(GL_REPLACE, GL_REPLACE, GL_REPLACE);
- }
-
- /* To eliminate depth buffer artifacts, we use polygon offset
- to raise the depth of the projected shadow slightly so
- that it does not depth buffer alias with the floor. */
- if (offsetShadow) {
- switch (polygonOffsetVersion) {
- case EXTENSION:
-#ifdef GL_EXT_polygon_offset
- glEnable(GL_POLYGON_OFFSET_EXT);
- break;
-#endif
-#ifdef GL_VERSION_1_1
- case ONE_DOT_ONE:
- glEnable(GL_POLYGON_OFFSET_FILL);
- break;
-#endif
- case MISSING:
- /* Oh well. */
- break;
- }
- }
-
- /* Render 50% black shadow color on top of whatever the
- floor appareance is. */
- glEnable(GL_BLEND);
- glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
- glDisable(GL_LIGHTING); /* Force the 50% black. */
- glColor4f(0.0, 0.0, 0.0, 0.5);
-
- glPushMatrix();
- /* Project the shadow. */
- glMultMatrixf((GLfloat *) floorShadow);
- drawDinosaur();
- glPopMatrix();
-
- glDisable(GL_BLEND);
- glEnable(GL_LIGHTING);
-
- if (offsetShadow) {
- switch (polygonOffsetVersion) {
-#ifdef GL_EXT_polygon_offset
- case EXTENSION:
- glDisable(GL_POLYGON_OFFSET_EXT);
- break;
-#endif
-#ifdef GL_VERSION_1_1
- case ONE_DOT_ONE:
- glDisable(GL_POLYGON_OFFSET_FILL);
- break;
-#endif
- case MISSING:
- /* Oh well. */
- break;
- }
- }
- if (stencilShadow) {
- glDisable(GL_STENCIL_TEST);
- }
- }
-
- glPushMatrix();
- glDisable(GL_LIGHTING);
- glColor3f(1.0, 1.0, 0.0);
- if (directionalLight) {
- /* Draw an arrowhead. */
- glDisable(GL_CULL_FACE);
- glTranslatef(lightPosition[0], lightPosition[1], lightPosition[2]);
- glRotatef(lightAngle * -180.0 / M_PI, 0, 1, 0);
- glRotatef(atan(lightHeight/12) * 180.0 / M_PI, 0, 0, 1);
- glBegin(GL_TRIANGLE_FAN);
- glVertex3f(0, 0, 0);
- glVertex3f(2, 1, 1);
- glVertex3f(2, -1, 1);
- glVertex3f(2, -1, -1);
- glVertex3f(2, 1, -1);
- glVertex3f(2, 1, 1);
- glEnd();
- /* Draw a white line from light direction. */
- glColor3f(1.0, 1.0, 1.0);
- glBegin(GL_LINES);
- glVertex3f(0, 0, 0);
- glVertex3f(5, 0, 0);
- glEnd();
- glEnable(GL_CULL_FACE);
- } else {
- /* Draw a yellow ball at the light source. */
- glTranslatef(lightPosition[0], lightPosition[1], lightPosition[2]);
- glutSolidSphere(1.0, 5, 5);
- }
- glEnable(GL_LIGHTING);
- glPopMatrix();
-
- glPopMatrix();
-
- if (reportSpeed) {
- glFinish();
- end = glutGet(GLUT_ELAPSED_TIME);
- printf("Speed %.3g frames/sec (%d ms)\n", 1000.0/(end-start), end-start);
- }
-
- glutSwapBuffers();
-}
-
-/* ARGSUSED2 */
-static void
-mouse(int button, int state, int x, int y)
-{
- if (button == GLUT_LEFT_BUTTON) {
- if (state == GLUT_DOWN) {
- moving = 1;
- startx = x;
- starty = y;
- }
- if (state == GLUT_UP) {
- moving = 0;
- }
- }
- if (button == GLUT_MIDDLE_BUTTON) {
- if (state == GLUT_DOWN) {
- lightMoving = 1;
- lightStartX = x;
- lightStartY = y;
- }
- if (state == GLUT_UP) {
- lightMoving = 0;
- }
- }
-}
-
-/* ARGSUSED1 */
-static void
-motion(int x, int y)
-{
- if (moving) {
- angle = angle + (x - startx);
- angle2 = angle2 + (y - starty);
- startx = x;
- starty = y;
- glutPostRedisplay();
- }
- if (lightMoving) {
- lightAngle += (x - lightStartX)/40.0;
- lightHeight += (lightStartY - y)/20.0;
- lightStartX = x;
- lightStartY = y;
- glutPostRedisplay();
- }
-}
-
-/* Advance time varying state when idle callback registered. */
-static void
-idle(void)
-{
- static float time = 0.0;
-
- time = glutGet(GLUT_ELAPSED_TIME) / 500.0;
-
- jump = 4.0 * fabs(sin(time)*0.5);
- if (!lightMoving) {
- lightAngle += 0.03;
- }
- glutPostRedisplay();
-}
-
-enum {
- M_NONE, M_MOTION, M_LIGHT, M_TEXTURE, M_SHADOWS, M_REFLECTION, M_DINOSAUR,
- M_STENCIL_REFLECTION, M_STENCIL_SHADOW, M_OFFSET_SHADOW,
- M_POSITIONAL, M_DIRECTIONAL, M_PERFORMANCE
-};
-
-static void
-controlLights(int value)
-{
- switch (value) {
- case M_NONE:
- return;
- case M_MOTION:
- animation = 1 - animation;
- if (animation) {
- glutIdleFunc(idle);
- } else {
- glutIdleFunc(NULL);
- }
- break;
- case M_LIGHT:
- lightSwitch = !lightSwitch;
- if (lightSwitch) {
- glEnable(GL_LIGHT0);
- } else {
- glDisable(GL_LIGHT0);
- }
- break;
- case M_TEXTURE:
- useTexture = !useTexture;
- break;
- case M_SHADOWS:
- renderShadow = 1 - renderShadow;
- break;
- case M_REFLECTION:
- renderReflection = 1 - renderReflection;
- break;
- case M_DINOSAUR:
- renderDinosaur = 1 - renderDinosaur;
- break;
- case M_STENCIL_REFLECTION:
- stencilReflection = 1 - stencilReflection;
- break;
- case M_STENCIL_SHADOW:
- stencilShadow = 1 - stencilShadow;
- break;
- case M_OFFSET_SHADOW:
- offsetShadow = 1 - offsetShadow;
- break;
- case M_POSITIONAL:
- directionalLight = 0;
- break;
- case M_DIRECTIONAL:
- directionalLight = 1;
- break;
- case M_PERFORMANCE:
- reportSpeed = 1 - reportSpeed;
- break;
- }
- glutPostRedisplay();
-}
-
-/* When not visible, stop animating. Restart when visible again. */
-static void
-visible(int vis)
-{
- if (vis == GLUT_VISIBLE) {
- if (animation)
- glutIdleFunc(idle);
- } else {
- if (!animation)
- glutIdleFunc(NULL);
- }
-}
-
-/* Press any key to redraw; good when motion stopped and
- performance reporting on. */
-/* ARGSUSED */
-static void
-key(unsigned char c, int x, int y)
-{
- if (c == 27) {
- exit(0); /* IRIS GLism, Escape quits. */
- }
- glutPostRedisplay();
-}
-
-/* Press any key to redraw; good when motion stopped and
- performance reporting on. */
-/* ARGSUSED */
-static void
-special(int k, int x, int y)
-{
- glutPostRedisplay();
-}
-
-static int
-supportsOneDotOne(void)
-{
- const char *version;
- int major, minor;
-
- version = (char *) glGetString(GL_VERSION);
- if (sscanf(version, "%d.%d", &major, &minor) == 2)
- return major * 10 + minor >= 11;
- return 0; /* OpenGL version string malformed! */
-}
-
-int
-main(int argc, char **argv)
-{
- int i;
-
- glutInit(&argc, argv);
-
- for (i=1; i<argc; i++) {
- if (!strcmp("-linear", argv[i])) {
- linearFiltering = 1;
- } else if (!strcmp("-mipmap", argv[i])) {
- useMipmaps = 1;
- } else if (!strcmp("-ext", argv[i])) {
- forceExtension = 1;
- }
- }
-
- glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH | GLUT_STENCIL);
-
-#if 0
- /* In GLUT 4.0, you'll be able to do this an be sure to
- get 2 bits of stencil if the machine has it for you. */
- glutInitDisplayString("samples stencil>=2 rgb double depth");
-#endif
-
- glutCreateWindow("Shadowy Leapin' Lizards");
- glewInit();
-
- if (glutGet(GLUT_WINDOW_STENCIL_SIZE) <= 1) {
- printf("dinoshade: Sorry, I need at least 2 bits of stencil.\n");
- exit(1);
- }
-
- /* Register GLUT callbacks. */
- glutDisplayFunc(redraw);
- glutMouseFunc(mouse);
- glutMotionFunc(motion);
- glutVisibilityFunc(visible);
- glutKeyboardFunc(key);
- glutSpecialFunc(special);
-
- glutCreateMenu(controlLights);
-
- glutAddMenuEntry("Toggle motion", M_MOTION);
- glutAddMenuEntry("-----------------------", M_NONE);
- glutAddMenuEntry("Toggle light", M_LIGHT);
- glutAddMenuEntry("Toggle texture", M_TEXTURE);
- glutAddMenuEntry("Toggle shadows", M_SHADOWS);
- glutAddMenuEntry("Toggle reflection", M_REFLECTION);
- glutAddMenuEntry("Toggle dinosaur", M_DINOSAUR);
- glutAddMenuEntry("-----------------------", M_NONE);
- glutAddMenuEntry("Toggle reflection stenciling", M_STENCIL_REFLECTION);
- glutAddMenuEntry("Toggle shadow stenciling", M_STENCIL_SHADOW);
- glutAddMenuEntry("Toggle shadow offset", M_OFFSET_SHADOW);
- glutAddMenuEntry("----------------------", M_NONE);
- glutAddMenuEntry("Positional light", M_POSITIONAL);
- glutAddMenuEntry("Directional light", M_DIRECTIONAL);
- glutAddMenuEntry("-----------------------", M_NONE);
- glutAddMenuEntry("Toggle performance", M_PERFORMANCE);
- glutAttachMenu(GLUT_RIGHT_BUTTON);
- makeDinosaur();
-
-#ifdef GL_VERSION_1_1
- if (supportsOneDotOne() && !forceExtension) {
- polygonOffsetVersion = ONE_DOT_ONE;
- glPolygonOffset(-2.0, -9.0);
- } else
-#endif
- {
-#ifdef GL_EXT_polygon_offset
- /* check for the polygon offset extension */
- if (glutExtensionSupported("GL_EXT_polygon_offset")) {
- polygonOffsetVersion = EXTENSION;
- glPolygonOffsetEXT(-2.0, -0.002);
- } else
-#endif
- {
- polygonOffsetVersion = MISSING;
- printf("\ndinoshine: Missing polygon offset.\n");
- printf(" Expect shadow depth aliasing artifacts.\n\n");
- }
- }
-
- glEnable(GL_CULL_FACE);
- glEnable(GL_DEPTH_TEST);
- glEnable(GL_TEXTURE_2D);
- glLineWidth(3.0);
-
- glMatrixMode(GL_PROJECTION);
- gluPerspective( /* field of view in degree */ 40.0,
- /* aspect ratio */ 1.0,
- /* Z near */ 20.0, /* Z far */ 100.0);
- glMatrixMode(GL_MODELVIEW);
- gluLookAt(0.0, 8.0, 60.0, /* eye is at (0,8,60) */
- 0.0, 8.0, 0.0, /* center is at (0,8,0) */
- 0.0, 1.0, 0.); /* up is in postivie Y direction */
-
- glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, 1);
- glLightfv(GL_LIGHT0, GL_DIFFUSE, lightColor);
- glLightf(GL_LIGHT0, GL_CONSTANT_ATTENUATION, 0.1);
- glLightf(GL_LIGHT0, GL_LINEAR_ATTENUATION, 0.05);
- glEnable(GL_LIGHT0);
- glEnable(GL_LIGHTING);
-
- makeFloorTexture();
-
- /* Setup floor plane for projected shadow calculations. */
- findPlane(floorPlane, floorVertices[1], floorVertices[2], floorVertices[3]);
-
- glutMainLoop();
- return 0; /* ANSI C requires main to return int. */
-}
diff --git a/progs/tests/fbotexture.c b/progs/tests/fbotexture.c
deleted file mode 100644
index 50a4b00afc..0000000000
--- a/progs/tests/fbotexture.c
+++ /dev/null
@@ -1,621 +0,0 @@
-/*
- * Test GL_EXT_framebuffer_object render-to-texture
- *
- * Draw a teapot into a texture image with stenciling.
- * Then draw a textured quad using that texture.
- *
- * Brian Paul
- * 18 Apr 2005
- */
-
-
-#include <GL/glew.h>
-#include <GL/glut.h>
-#include <assert.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-
-/* For debug */
-#define DEPTH 1
-#define STENCIL 1
-#define DRAW 1
-
-
-static int Win = 0;
-static int Width = 400, Height = 400;
-
-#if 1
-static GLenum TexTarget = GL_TEXTURE_2D;
-static int TexWidth = 512, TexHeight = 512;
-static GLenum TexIntFormat = GL_RGB; /* either GL_RGB or GL_RGBA */
-#else
-static GLenum TexTarget = GL_TEXTURE_RECTANGLE_ARB;
-static int TexWidth = 200, TexHeight = 200;
-static GLenum TexIntFormat = GL_RGB5; /* either GL_RGB or GL_RGBA */
-#endif
-static GLuint TextureLevel = 0; /* which texture level to render to */
-
-static GLuint MyFB;
-static GLuint TexObj;
-static GLuint DepthRB = 0, StencilRB = 0;
-static GLboolean Anim = GL_FALSE;
-static GLfloat Rot = 0.0;
-static GLboolean UsePackedDepthStencil = GL_FALSE;
-static GLboolean UsePackedDepthStencilBoth = GL_FALSE;
-static GLboolean Use_ARB_fbo = GL_FALSE;
-static GLboolean Cull = GL_FALSE;
-static GLboolean Wireframe = GL_FALSE;
-
-
-static void
-CheckError(int line)
-{
- GLenum err = glGetError();
- if (err) {
- printf("GL Error 0x%x at line %d\n", (int) err, line);
- }
-}
-
-
-static void
-Idle(void)
-{
- Rot = glutGet(GLUT_ELAPSED_TIME) * 0.1;
- glutPostRedisplay();
-}
-
-
-static void
-RenderTexture(void)
-{
- GLenum status;
-
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glOrtho(-1.0, 1.0, -1.0, 1.0, 5.0, 25.0);
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
- glTranslatef(0.0, 0.0, -15.0);
-
- /* draw to texture image */
- glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, MyFB);
-
- status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
- if (status != GL_FRAMEBUFFER_COMPLETE_EXT) {
- printf("Framebuffer incomplete!!!\n");
- }
-
- glViewport(0, 0, TexWidth, TexHeight);
-
- glClearColor(0.5, 0.5, 1.0, 0.0);
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
- CheckError(__LINE__);
-
-#if DEPTH
- glEnable(GL_DEPTH_TEST);
-#endif
-
-#if STENCIL
- glEnable(GL_STENCIL_TEST);
- glStencilFunc(GL_NEVER, 1, ~0);
- glStencilOp(GL_REPLACE, GL_KEEP, GL_REPLACE);
-#endif
-
- CheckError(__LINE__);
-
-#if DEPTH || STENCIL
- /* draw diamond-shaped stencil pattern */
- glColor3f(0, 1, 0);
- glBegin(GL_POLYGON);
- glVertex2f(-0.2, 0.0);
- glVertex2f( 0.0, -0.2);
- glVertex2f( 0.2, 0.0);
- glVertex2f( 0.0, 0.2);
- glEnd();
-#endif
-
- /* draw teapot where stencil != 1 */
-#if STENCIL
- glStencilFunc(GL_NOTEQUAL, 1, ~0);
- glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
-#endif
-
- CheckError(__LINE__);
-
- if (Wireframe) {
- glPolygonMode(GL_FRONT, GL_LINE);
- }
- else {
- glPolygonMode(GL_FRONT, GL_FILL);
- }
-
- if (Cull) {
- /* cull back */
- glCullFace(GL_BACK);
- glEnable(GL_CULL_FACE);
- }
- else {
- glDisable(GL_CULL_FACE);
- }
-
-#if 0
- glBegin(GL_POLYGON);
- glColor3f(1, 0, 0);
- glVertex2f(-1, -1);
- glColor3f(0, 1, 0);
- glVertex2f(1, -1);
- glColor3f(0, 0, 1);
- glVertex2f(0, 1);
- glEnd();
-#else
- glEnable(GL_LIGHTING);
- glEnable(GL_LIGHT0);
- glPushMatrix();
- glRotatef(0.5 * Rot, 1.0, 0.0, 0.0);
- glFrontFace(GL_CW); /* Teapot patches backward */
- glutSolidTeapot(0.5);
- glFrontFace(GL_CCW);
- glPopMatrix();
- glDisable(GL_LIGHTING);
- /*
- PrintStencilHistogram(TexWidth, TexHeight);
- */
-#endif
-
- glDisable(GL_DEPTH_TEST);
- glDisable(GL_STENCIL_TEST);
- glDisable(GL_CULL_FACE);
- glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
-
-#if DRAW
- /* Bind normal framebuffer */
- glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
-#endif
-
- CheckError(__LINE__);
-}
-
-
-
-static void
-Display(void)
-{
- float ar = (float) Width / (float) Height;
-
- RenderTexture();
-
- /* draw textured quad in the window */
-#if DRAW
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glFrustum(-ar, ar, -1.0, 1.0, 5.0, 25.0);
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
- glTranslatef(0.0, 0.0, -7.0);
-
- glViewport(0, 0, Width, Height);
-
- glClearColor(0.25, 0.25, 0.25, 0);
- glClear(GL_COLOR_BUFFER_BIT);
-
- glPushMatrix();
- glRotatef(Rot, 0, 1, 0);
- glEnable(TexTarget);
- glBindTexture(TexTarget, TexObj);
- glBegin(GL_POLYGON);
- glColor3f(0.25, 0.25, 0.25);
- if (TexTarget == GL_TEXTURE_2D) {
- glTexCoord2f(0, 0);
- glVertex2f(-1, -1);
- glTexCoord2f(1, 0);
- glVertex2f(1, -1);
- glColor3f(1.0, 1.0, 1.0);
- glTexCoord2f(1, 1);
- glVertex2f(1, 1);
- glTexCoord2f(0, 1);
- glVertex2f(-1, 1);
- }
- else {
- assert(TexTarget == GL_TEXTURE_RECTANGLE_ARB);
- glTexCoord2f(0, 0);
- glVertex2f(-1, -1);
- glTexCoord2f(TexWidth, 0);
- glVertex2f(1, -1);
- glColor3f(1.0, 1.0, 1.0);
- glTexCoord2f(TexWidth, TexHeight);
- glVertex2f(1, 1);
- glTexCoord2f(0, TexHeight);
- glVertex2f(-1, 1);
- }
- glEnd();
- glPopMatrix();
- glDisable(TexTarget);
-#endif
-
- glutSwapBuffers();
- CheckError(__LINE__);
-}
-
-
-static void
-Reshape(int width, int height)
-{
- glViewport(0, 0, width, height);
- Width = width;
- Height = height;
-}
-
-
-static void
-CleanUp(void)
-{
-#if DEPTH
- glDeleteRenderbuffersEXT(1, &DepthRB);
-#endif
-#if STENCIL
- glDeleteRenderbuffersEXT(1, &StencilRB);
-#endif
- glDeleteFramebuffersEXT(1, &MyFB);
-
- glDeleteTextures(1, &TexObj);
-
- glutDestroyWindow(Win);
-
- exit(0);
-}
-
-
-static void
-Key(unsigned char key, int x, int y)
-{
- (void) x;
- (void) y;
- switch (key) {
- case 'a':
- Anim = !Anim;
- if (Anim)
- glutIdleFunc(Idle);
- else
- glutIdleFunc(NULL);
- break;
- case 'c':
- Cull = !Cull;
- break;
- case 'w':
- Wireframe = !Wireframe;
- break;
- case 's':
- Rot += 2.0;
- break;
- case 'S':
- Rot -= 2.0;
- break;
- case 27:
- CleanUp();
- break;
- }
- glutPostRedisplay();
-}
-
-
-/**
- * Attach depth and stencil renderbuffer(s) to the given framebuffer object.
- * \param tryDepthStencil if true, try to use a combined depth+stencil buffer
- * \param bindDepthStencil if true, and tryDepthStencil is true, bind with
- * the GL_DEPTH_STENCIL_ATTACHMENT target.
- * \return GL_TRUE for success, GL_FALSE for failure
- */
-static GLboolean
-AttachDepthAndStencilBuffers(GLuint fbo,
- GLsizei width, GLsizei height,
- GLboolean tryDepthStencil,
- GLboolean bindDepthStencil,
- GLuint *depthRbOut, GLuint *stencilRbOut)
-{
- GLenum status;
-
- *depthRbOut = *stencilRbOut = 0;
-
- glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fbo);
-
- if (tryDepthStencil) {
- GLuint rb;
-
- glGenRenderbuffersEXT(1, &rb);
- glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, rb);
- glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT,
- GL_DEPTH24_STENCIL8_EXT,
- width, height);
- if (glGetError())
- return GL_FALSE;
-
- if (bindDepthStencil) {
- /* attach to both depth and stencil at once */
- glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT,
- GL_DEPTH_STENCIL_ATTACHMENT,
- GL_RENDERBUFFER_EXT, rb);
- if (glGetError())
- return GL_FALSE;
- }
- else {
- /* attach to depth attachment point */
- glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT,
- GL_DEPTH_ATTACHMENT_EXT,
- GL_RENDERBUFFER_EXT, rb);
- if (glGetError())
- return GL_FALSE;
-
- /* and attach to stencil attachment point */
- glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT,
- GL_STENCIL_ATTACHMENT_EXT,
- GL_RENDERBUFFER_EXT, rb);
- if (glGetError())
- return GL_FALSE;
- }
-
- status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
- if (status != GL_FRAMEBUFFER_COMPLETE_EXT)
- return GL_FALSE;
-
- *depthRbOut = *stencilRbOut = rb;
- return GL_TRUE;
- }
-
- /* just depth renderbuffer */
- {
- GLuint rb;
-
- glGenRenderbuffersEXT(1, &rb);
- glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, rb);
- glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT,
- GL_DEPTH_COMPONENT,
- width, height);
- if (glGetError())
- return GL_FALSE;
-
- /* attach to depth attachment point */
- glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT,
- GL_DEPTH_ATTACHMENT_EXT,
- GL_RENDERBUFFER_EXT, rb);
- if (glGetError())
- return GL_FALSE;
-
- status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
- if (status != GL_FRAMEBUFFER_COMPLETE_EXT)
- return GL_FALSE;
-
- *depthRbOut = rb;
- }
-
- /* just stencil renderbuffer */
- {
- GLuint rb;
-
- glGenRenderbuffersEXT(1, &rb);
- glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, rb);
- glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT,
- GL_STENCIL_INDEX,
- width, height);
- if (glGetError())
- return GL_FALSE;
-
- /* attach to depth attachment point */
- glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT,
- GL_STENCIL_ATTACHMENT_EXT,
- GL_RENDERBUFFER_EXT, rb);
- if (glGetError())
- return GL_FALSE;
-
- status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
- if (status != GL_FRAMEBUFFER_COMPLETE_EXT) {
- glDeleteRenderbuffersEXT(1, depthRbOut);
- *depthRbOut = 0;
- glDeleteRenderbuffersEXT(1, &rb);
- return GL_FALSE;
- }
-
- *stencilRbOut = rb;
- }
-
- return GL_TRUE;
-}
-
-
-static void
-ParseArgs(int argc, char *argv[])
-{
- GLint i;
- for (i = 1; i < argc; i++) {
- if (strcmp(argv[i], "-ds") == 0) {
- if (!glutExtensionSupported("GL_EXT_packed_depth_stencil")) {
- printf("GL_EXT_packed_depth_stencil not found!\n");
- exit(0);
- }
- UsePackedDepthStencil = GL_TRUE;
- printf("Using GL_EXT_packed_depth_stencil\n");
- }
- else if (strcmp(argv[i], "-ds2") == 0) {
- if (!glutExtensionSupported("GL_EXT_packed_depth_stencil")) {
- printf("GL_EXT_packed_depth_stencil not found!\n");
- exit(0);
- }
- if (!glutExtensionSupported("GL_ARB_framebuffer_object")) {
- printf("GL_ARB_framebuffer_object not found!\n");
- exit(0);
- }
- UsePackedDepthStencilBoth = GL_TRUE;
- printf("Using GL_EXT_packed_depth_stencil and GL_DEPTH_STENCIL attachment point\n");
- }
- else if (strcmp(argv[i], "-arb") == 0) {
- if (!glutExtensionSupported("GL_ARB_framebuffer_object")) {
- printf("Sorry, GL_ARB_framebuffer object not supported!\n");
- }
- else {
- Use_ARB_fbo = GL_TRUE;
- }
- }
- else {
- printf("Unknown option: %s\n", argv[i]);
- }
- }
-}
-
-
-/*
- * Make FBO to render into given texture.
- */
-static GLuint
-MakeFBO_RenderTexture(GLuint TexObj)
-{
- GLuint fb;
- GLint sizeFudge = 0;
-
- glGenFramebuffersEXT(1, &fb);
- glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fb);
- /* Render color to texture */
- glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
- TexTarget, TexObj, TextureLevel);
-
- if (Use_ARB_fbo) {
- /* use a smaller depth buffer to see what happens */
- sizeFudge = 90;
- }
-
- /* Setup depth and stencil buffers */
- {
- GLboolean b;
- b = AttachDepthAndStencilBuffers(fb,
- TexWidth - sizeFudge,
- TexHeight - sizeFudge,
- UsePackedDepthStencil,
- UsePackedDepthStencilBoth,
- &DepthRB, &StencilRB);
- if (!b) {
- /* try !UsePackedDepthStencil */
- b = AttachDepthAndStencilBuffers(fb,
- TexWidth - sizeFudge,
- TexHeight - sizeFudge,
- !UsePackedDepthStencil,
- UsePackedDepthStencilBoth,
- &DepthRB, &StencilRB);
- }
- if (!b) {
- printf("Unable to create/attach depth and stencil renderbuffers "
- " to FBO!\n");
- exit(1);
- }
- }
-
- /* queries */
- {
- GLint bits, w, h;
-
- glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, DepthRB);
- glGetRenderbufferParameterivEXT(GL_RENDERBUFFER_EXT,
- GL_RENDERBUFFER_WIDTH_EXT, &w);
- glGetRenderbufferParameterivEXT(GL_RENDERBUFFER_EXT,
- GL_RENDERBUFFER_HEIGHT_EXT, &h);
- printf("Color/Texture size: %d x %d\n", TexWidth, TexHeight);
- printf("Depth buffer size: %d x %d\n", w, h);
-
- glGetRenderbufferParameterivEXT(GL_RENDERBUFFER_EXT,
- GL_RENDERBUFFER_DEPTH_SIZE_EXT, &bits);
- printf("Depth renderbuffer size = %d bits\n", bits);
-
- glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, StencilRB);
- glGetRenderbufferParameterivEXT(GL_RENDERBUFFER_EXT,
- GL_RENDERBUFFER_STENCIL_SIZE_EXT, &bits);
- printf("Stencil renderbuffer size = %d bits\n", bits);
- }
-
- /* bind the regular framebuffer */
- glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
-
- return fb;
-}
-
-
-static void
-Init(void)
-{
- if (!glutExtensionSupported("GL_EXT_framebuffer_object")) {
- printf("GL_EXT_framebuffer_object not found!\n");
- exit(0);
- }
-
- printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
-
- /* lighting */
- {
- static const GLfloat mat[4] = { 1.0, 0.5, 0.5, 1.0 };
- glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, mat);
- }
-
- /*
- * Make texture object/image (we'll render into this texture)
- */
- {
- glGenTextures(1, &TexObj);
- glBindTexture(TexTarget, TexObj);
-
- /* make two image levels */
- glTexImage2D(TexTarget, 0, TexIntFormat, TexWidth, TexHeight, 0,
- GL_RGBA, GL_UNSIGNED_BYTE, NULL);
- if (TexTarget == GL_TEXTURE_2D) {
- glTexImage2D(TexTarget, 1, TexIntFormat, TexWidth/2, TexHeight/2, 0,
- GL_RGBA, GL_UNSIGNED_BYTE, NULL);
- TexWidth = TexWidth >> TextureLevel;
- TexHeight = TexHeight >> TextureLevel;
- glTexParameteri(TexTarget, GL_TEXTURE_MAX_LEVEL, TextureLevel);
- }
-
- glTexParameteri(TexTarget, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
- glTexParameteri(TexTarget, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
- glTexParameteri(TexTarget, GL_TEXTURE_BASE_LEVEL, TextureLevel);
- glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
- }
-
- MyFB = MakeFBO_RenderTexture(TexObj);
-}
-
-
-static void
-Usage(void)
-{
- printf("Usage:\n");
- printf(" -ds Use combined depth/stencil renderbuffer\n");
- printf(" -arb Try GL_ARB_framebuffer_object's mismatched buffer sizes\n");
- printf(" -ds2 Try GL_ARB_framebuffer_object's GL_DEPTH_STENCIL_ATTACHMENT\n");
- printf("Keys:\n");
- printf(" a Toggle animation\n");
- printf(" s/s Step/rotate\n");
- printf(" c Toggle back-face culling\n");
- printf(" w Toggle wireframe mode (front-face only)\n");
- printf(" Esc Exit\n");
-}
-
-
-int
-main(int argc, char *argv[])
-{
- glutInit(&argc, argv);
- glutInitWindowPosition(0, 0);
- glutInitWindowSize(Width, Height);
- glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
- Win = glutCreateWindow(argv[0]);
- glewInit();
- glutReshapeFunc(Reshape);
- glutKeyboardFunc(Key);
- glutDisplayFunc(Display);
- if (Anim)
- glutIdleFunc(Idle);
-
- ParseArgs(argc, argv);
- Init();
- Usage();
-
- glutMainLoop();
- return 0;
-}
diff --git a/progs/tests/floattex.c b/progs/tests/floattex.c
index dd99d836c6..ad14cacdcb 100644
--- a/progs/tests/floattex.c
+++ b/progs/tests/floattex.c
@@ -1,6 +1,5 @@
/*
* Test floating point textures.
- * No actual rendering, yet.
*/
@@ -103,7 +102,6 @@ Key(unsigned char key, int x, int y)
}
-
static void
InitTexture(void)
{
@@ -141,6 +139,8 @@ InitTexture(void)
GL_RGB, GL_FLOAT, ftex);
+ CheckError(__LINE__);
+
/* sanity checks */
glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_RED_TYPE_ARB, &t);
assert(t == GL_FLOAT);
@@ -152,32 +152,26 @@ InitTexture(void)
assert(t == GL_FLOAT);
free(image);
- free(ftex);
-
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, filter);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, filter);
-#if 0
- /* read back the texture and make sure values are correct */
- glGetTexImage(GL_TEXTURE_2D, 0, GL_RGBA, GL_FLOAT, tex2);
- CheckError(__LINE__);
- for (i = 0; i < 16; i++) {
- for (j = 0; j < 16; j++) {
- if (tex[i][j][0] != tex2[i][j][0] ||
- tex[i][j][1] != tex2[i][j][1] ||
- tex[i][j][2] != tex2[i][j][2] ||
- tex[i][j][3] != tex2[i][j][3]) {
- printf("tex[%d][%d] %g %g %g %g != tex2[%d][%d] %g %g %g %g\n",
- i, j,
- tex[i][j][0], tex[i][j][1], tex[i][j][2], tex[i][j][3],
- i, j,
- tex2[i][j][0], tex2[i][j][1], tex2[i][j][2], tex2[i][j][3]);
+ if (1) {
+ /* read back the texture and make sure values are correct */
+ GLfloat *tex2 = (GLfloat *)
+ malloc(imgWidth * imgHeight * 4 * sizeof(GLfloat));
+ glGetTexImage(GL_TEXTURE_2D, 0, imgFormat, GL_FLOAT, tex2);
+ CheckError(__LINE__);
+ for (i = 0; i < imgWidth * imgHeight * 4; i++) {
+ if (ftex[i] != tex2[i]) {
+ printf("tex[%d] %g != tex2[%d] %g\n",
+ i, ftex[i], i, tex2[i]);
}
}
}
-#endif
+
+ free(ftex);
}
@@ -193,7 +187,9 @@ CreateProgram(void)
assert(program);
- // InitUniforms(program, Uniforms);
+ glUseProgram_func(program);
+
+ InitUniforms(program, Uniforms);
return program;
}
@@ -211,8 +207,9 @@ Init(void)
exit(1);
}
- if (!glutExtensionSupported("GL_MESAX_texture_float")) {
- printf("Sorry, this test requires GL_MESAX_texture_float\n");
+ if (!glutExtensionSupported("GL_MESAX_texture_float") &&
+ !glutExtensionSupported("GL_ARB_texture_float")) {
+ printf("Sorry, this test requires GL_MESAX/ARB_texture_float\n");
exit(1);
}
diff --git a/progs/tests/getteximage.c b/progs/tests/getteximage.c
new file mode 100644
index 0000000000..e4818a8fab
--- /dev/null
+++ b/progs/tests/getteximage.c
@@ -0,0 +1,217 @@
+/**
+ * Test glGetTexImage()
+ * Brian Paul
+ * 9 June 2009
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <GL/glew.h>
+#include <GL/glut.h>
+
+static int Win;
+
+
+static void
+TestGetTexImage(void)
+{
+ GLuint iter;
+ GLubyte *data = (GLubyte *) malloc(1024 * 1024 * 4);
+ GLubyte *data2 = (GLubyte *) malloc(1024 * 1024 * 4);
+
+ glEnable(GL_TEXTURE_2D);
+
+ printf("glTexImage2D + glGetTexImage:\n");
+
+ for (iter = 0; iter < 8; iter++) {
+ GLint p = (iter % 8) + 3;
+ GLint w = (1 << p);
+ GLint h = (1 << p);
+ GLuint i;
+ GLint level = 0;
+
+ printf(" Testing %d x %d tex image\n", w, h);
+
+ /* fill data */
+ for (i = 0; i < w * h * 4; i++) {
+ data[i] = i & 0xff;
+ data2[i] = 0;
+ }
+
+ glTexImage2D(GL_TEXTURE_2D, level, GL_RGBA, w, h, 0,
+ GL_RGBA, GL_UNSIGNED_BYTE, data);
+
+ glBegin(GL_POINTS);
+ glVertex2f(0, 0);
+ glEnd();
+
+ /* get */
+ glGetTexImage(GL_TEXTURE_2D, level, GL_RGBA, GL_UNSIGNED_BYTE, data2);
+
+ /* compare */
+ for (i = 0; i < w * h * 4; i++) {
+ if (data2[i] != data[i]) {
+ printf("glTexImage + glGetTexImage failure!\n");
+ printf("Expected value %d, found %d\n", data[i], data2[i]);
+ abort();
+ }
+ }
+ }
+
+ printf("Passed\n");
+ glDisable(GL_TEXTURE_2D);
+ free(data);
+ free(data2);
+}
+
+
+static GLboolean
+ColorsEqual(const GLubyte ref[4], const GLubyte act[4])
+{
+ if (abs((int) ref[0] - (int) act[0]) > 1 ||
+ abs((int) ref[1] - (int) act[1]) > 1 ||
+ abs((int) ref[2] - (int) act[2]) > 1 ||
+ abs((int) ref[3] - (int) act[3]) > 1) {
+ printf("expected %d %d %d %d\n", ref[0], ref[1], ref[2], ref[3]);
+ printf("found %d %d %d %d\n", act[0], act[1], act[2], act[3]);
+ return GL_FALSE;
+ }
+ return GL_TRUE;
+}
+
+
+static void
+TestGetTexImageRTT(void)
+{
+ GLuint iter;
+ GLuint fb, tex;
+ GLint w = 512;
+ GLint h = 256;
+ GLint level = 0;
+
+ glGenTextures(1, &tex);
+ glGenFramebuffersEXT(1, &fb);
+
+ glBindTexture(GL_TEXTURE_2D, tex);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0,
+ GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+
+ glBindFramebuffer(GL_FRAMEBUFFER_EXT, fb);
+ glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT,
+ GL_TEXTURE_2D, tex, level);
+
+ printf("Render to texture + glGetTexImage:\n");
+ printf(" Testing %d x %d tex image\n", w, h);
+ for (iter = 0; iter < 8; iter++) {
+ GLubyte color[4];
+ GLubyte *data2 = (GLubyte *) malloc(w * h * 4);
+ GLuint i;
+
+ /* random clear color */
+ for (i = 0; i < 4; i++) {
+ color[i] = rand() % 256;
+ }
+
+ glClearColor(color[0] / 255.0,
+ color[1] / 255.0,
+ color[2] / 255.0,
+ color[3] / 255.0);
+
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ /* get */
+ glGetTexImage(GL_TEXTURE_2D, level, GL_RGBA, GL_UNSIGNED_BYTE, data2);
+
+ /* compare */
+ for (i = 0; i < w * h; i += 4) {
+ if (!ColorsEqual(color, data2 + i * 4)) {
+ printf("Render to texture failure!\n");
+ abort();
+ }
+ }
+
+ free(data2);
+ }
+
+ glBindFramebuffer(GL_FRAMEBUFFER_EXT, 0);
+ glDeleteFramebuffersEXT(1, &fb);
+ glDeleteTextures(1, &tex);
+
+ printf("Passed\n");
+}
+
+
+
+
+static void
+Draw(void)
+{
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+ TestGetTexImage();
+
+ if (glutExtensionSupported("GL_EXT_framebuffer_object") ||
+ glutExtensionSupported("GL_ARB_framebuffer_object"))
+ TestGetTexImageRTT();
+
+ glutDestroyWindow(Win);
+ exit(0);
+
+ glutSwapBuffers();
+}
+
+
+static void
+Reshape(int width, int height)
+{
+ glViewport(0, 0, width, height);
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glFrustum(-1.0, 1.0, -1.0, 1.0, 5.0, 25.0);
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslatef(0.0, 0.0, -15.0);
+}
+
+
+static void
+Key(unsigned char key, int x, int y)
+{
+ (void) x;
+ (void) y;
+ switch (key) {
+ case 27:
+ glutDestroyWindow(Win);
+ exit(0);
+ break;
+ }
+ glutPostRedisplay();
+}
+
+
+static void
+Init(void)
+{
+}
+
+
+int
+main(int argc, char *argv[])
+{
+ glutInit(&argc, argv);
+ glutInitWindowPosition(0, 0);
+ glutInitWindowSize(400, 400);
+ glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
+ Win = glutCreateWindow(argv[0]);
+ glewInit();
+ glutReshapeFunc(Reshape);
+ glutKeyboardFunc(Key);
+ glutDisplayFunc(Draw);
+ Init();
+ glutMainLoop();
+ return 0;
+}
diff --git a/progs/tests/glutfx.c b/progs/tests/glutfx.c
new file mode 100644
index 0000000000..8bf5582389
--- /dev/null
+++ b/progs/tests/glutfx.c
@@ -0,0 +1,189 @@
+
+/*
+ * Example of how one might use GLUT with the 3Dfx driver in full-screen mode.
+ * Note: this only works with X since we're using Mesa's GLX "hack" for
+ * using Glide.
+ *
+ * Goals:
+ * easy setup and input event handling with GLUT
+ * use 3Dfx hardware
+ * automatically set MESA environment variables
+ * don't lose mouse input focus
+ *
+ * Brian Paul This file is in the public domain.
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <GL/glut.h>
+
+
+#define WIDTH 640
+#define HEIGHT 480
+
+
+static int Window = 0;
+static int ScreenWidth, ScreenHeight;
+static GLuint Torus = 0;
+static GLfloat Xrot = 0.0, Yrot = 0.0;
+
+
+
+static void Display( void )
+{
+ static GLfloat blue[4] = {0.2, 0.2, 1.0, 1.0};
+ static GLfloat red[4] = {1.0, 0.2, 0.2, 1.0};
+ static GLfloat green[4] = {0.2, 1.0, 0.2, 1.0};
+
+ glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
+
+ glPushMatrix();
+ glRotatef(Xrot, 1, 0, 0);
+ glRotatef(Yrot, 0, 1, 0);
+
+ glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, blue);
+ glCallList(Torus);
+
+ glRotatef(90.0, 1, 0, 0);
+ glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, red);
+ glCallList(Torus);
+
+ glRotatef(90.0, 0, 1, 0);
+ glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, green);
+ glCallList(Torus);
+
+ glPopMatrix();
+
+ glutSwapBuffers();
+}
+
+
+static void Reshape( int width, int height )
+{
+ float ratio = (float) width / (float) height;
+
+ ScreenWidth = width;
+ ScreenHeight = height;
+
+ /*
+ * The 3Dfx driver is limited to 640 x 480 but the X window may be larger.
+ * Enforce that here.
+ */
+ if (width > WIDTH)
+ width = WIDTH;
+ if (height > HEIGHT)
+ height = HEIGHT;
+
+ glViewport( 0, 0, width, height );
+ glMatrixMode( GL_PROJECTION );
+ glLoadIdentity();
+ glFrustum( -ratio, ratio, -1.0, 1.0, 5.0, 30.0 );
+ glMatrixMode( GL_MODELVIEW );
+ glLoadIdentity();
+ glTranslatef( 0.0, 0.0, -20.0 );
+}
+
+
+static void Key( unsigned char key, int x, int y )
+{
+ (void) x;
+ (void) y;
+ switch (key) {
+ case 27:
+ glutDestroyWindow(Window);
+ exit(0);
+ break;
+ }
+ glutPostRedisplay();
+}
+
+
+static void SpecialKey( int key, int x, int y )
+{
+ (void) x;
+ (void) y;
+ switch (key) {
+ case GLUT_KEY_UP:
+ break;
+ case GLUT_KEY_DOWN:
+ break;
+ case GLUT_KEY_LEFT:
+ break;
+ case GLUT_KEY_RIGHT:
+ break;
+ }
+ glutPostRedisplay();
+}
+
+
+static void MouseMove( int x, int y )
+{
+ Xrot = y - ScreenWidth / 2;
+ Yrot = x - ScreenHeight / 2;
+ glutPostRedisplay();
+}
+
+
+static void Init( void )
+{
+ Torus = glGenLists(1);
+ glNewList(Torus, GL_COMPILE);
+ glutSolidTorus(0.5, 2.0, 10, 20);
+ glEndList();
+
+ glEnable(GL_LIGHTING);
+ glEnable(GL_LIGHT0);
+
+ glEnable(GL_DEPTH_TEST);
+ glEnable(GL_CULL_FACE);
+}
+
+
+int main( int argc, char *argv[] )
+{
+#ifndef _WIN32
+ printf("NOTE: if you've got 3Dfx VooDoo hardware you must run this");
+ printf(" program as root.\n\n");
+ printf("Move the mouse. Press ESC to exit.\n\n");
+#endif
+
+ /* Tell Mesa GLX to use 3Dfx driver in fullscreen mode. */
+ putenv("MESA_GLX_FX=fullscreen");
+
+ /* Disable 3Dfx Glide splash screen */
+ putenv("FX_GLIDE_NO_SPLASH=");
+
+ /* Give an initial size and position so user doesn't have to place window */
+ glutInitWindowPosition(0, 0);
+ glutInitWindowSize(WIDTH, HEIGHT);
+ glutInit( &argc, argv );
+
+ glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH );
+
+ Window = glutCreateWindow(argv[0]);
+ if (!Window) {
+ printf("Error, couldn't open window\n");
+ exit(1);
+ }
+
+ /*
+ * Want the X window to fill the screen so that we don't have to
+ * worry about losing the mouse input focus.
+ * Note that we won't actually see the X window since we never draw
+ * to it, hence, the original X screen's contents aren't disturbed.
+ */
+ glutFullScreen();
+
+ Init();
+
+ glutReshapeFunc( Reshape );
+ glutKeyboardFunc( Key );
+ glutSpecialFunc( SpecialKey );
+ glutDisplayFunc( Display );
+ glutPassiveMotionFunc( MouseMove );
+
+ glutMainLoop();
+ return 0;
+}
diff --git a/progs/tests/jkrahntest.c b/progs/tests/jkrahntest.c
index 08660b8932..3fef105fc2 100644
--- a/progs/tests/jkrahntest.c
+++ b/progs/tests/jkrahntest.c
@@ -45,7 +45,7 @@ int main(int argc, char **argv)
if (argc < 2) {
fprintf(stderr, "This program tests GLX context switching.\n");
- fprintf(stderr, "Usage: cxbug <n>\n");
+ fprintf(stderr, "Usage: jkrahntest <n>\n");
fprintf(stderr, "Where n is:\n");
fprintf(stderr, "\t1) Use two contexts and swap only when the context is current (typical case).\n");
fprintf(stderr, "\t2) Use two contexts and swap at the same time.\n");
diff --git a/progs/tests/mipmap_comp.c b/progs/tests/mipmap_comp.c
new file mode 100644
index 0000000000..5842e2b880
--- /dev/null
+++ b/progs/tests/mipmap_comp.c
@@ -0,0 +1,295 @@
+/* Copyright (c) Mark J. Kilgard, 1994. */
+/*
+ * (c) Copyright 1993, Silicon Graphics, Inc.
+ * ALL RIGHTS RESERVED
+ * Permission to use, copy, modify, and distribute this software for
+ * any purpose and without fee is hereby granted, provided that the above
+ * copyright notice appear in all copies and that both the copyright notice
+ * and this permission notice appear in supporting documentation, and that
+ * the name of Silicon Graphics, Inc. not be used in advertising
+ * or publicity pertaining to distribution of the software without specific,
+ * written prior permission.
+ *
+ * THE MATERIAL EMBODIED ON THIS SOFTWARE IS PROVIDED TO YOU "AS-IS"
+ * AND WITHOUT WARRANTY OF ANY KIND, EXPRESS, IMPLIED OR OTHERWISE,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY OR
+ * FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
+ * GRAPHICS, INC. BE LIABLE TO YOU OR ANYONE ELSE FOR ANY DIRECT,
+ * SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY
+ * KIND, OR ANY DAMAGES WHATSOEVER, INCLUDING WITHOUT LIMITATION,
+ * LOSS OF PROFIT, LOSS OF USE, SAVINGS OR REVENUE, OR THE CLAIMS OF
+ * THIRD PARTIES, WHETHER OR NOT SILICON GRAPHICS, INC. HAS BEEN
+ * ADVISED OF THE POSSIBILITY OF SUCH LOSS, HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
+ * POSSESSION, USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * US Government Users Restricted Rights
+ * Use, duplication, or disclosure by the Government is subject to
+ * restrictions set forth in FAR 52.227.19(c)(2) or subparagraph
+ * (c)(1)(ii) of the Rights in Technical Data and Computer Software
+ * clause at DFARS 252.227-7013 and/or in similar or successor
+ * clauses in the FAR or the DOD or NASA FAR Supplement.
+ * Unpublished-- rights reserved under the copyright laws of the
+ * United States. Contractor/manufacturer is Silicon Graphics,
+ * Inc., 2011 N. Shoreline Blvd., Mountain View, CA 94039-7311.
+ *
+ * OpenGL(TM) is a trademark of Silicon Graphics, Inc.
+ */
+
+/* mipmap_comp
+ * Test compressed texture mipmaps
+ *
+ * Based on mipmap_limits
+ */
+
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <GL/glew.h>
+#include <GL/glut.h>
+
+#include "readtex.h"
+
+#define SIZE 16 /* not larger then 16 */
+
+static GLint BaseLevel = 0, MaxLevel = 9;
+static GLfloat MinLod = -1, MaxLod = 9;
+static GLfloat LodBias = 0.0;
+static GLboolean NearestFilter = GL_TRUE;
+static GLuint texImage;
+
+
+static void
+initValues(void)
+{
+ BaseLevel = 0;
+ MaxLevel = 9;
+ MinLod = -1;
+ MaxLod = 2;
+ LodBias = 5.0;
+ NearestFilter = GL_TRUE;
+}
+
+
+static void
+makeImage(int level, int width, int height)
+{
+#if 0
+ GLubyte img[SIZE*SIZE*3];
+ int i, j;
+
+ (void)size;
+ for (i = 0; i < height; i++) {
+ for (j = 0; j < width; j++) {
+ int k = (i * width + j) * 3;
+ img[k + 0] = 255 * ((level + 1) % 2);
+ img[k + 1] = 255 * ((level + 1) % 2);
+ img[k + 2] = 255 * ((level + 1) % 2);
+ }
+ }
+
+ glTexImage2D(GL_TEXTURE_2D, level, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, width, height, 0,
+ GL_RGB, GL_UNSIGNED_BYTE, img);
+#else
+ GLubyte img[128];
+ GLint size[] = {
+ 128, /* 16x16 */
+ 32, /* 8x8 */
+ 8, /* 4x4 */
+ 8, /* 2x2 */
+ 8, /* 1x1 */
+ };
+ int i;
+ int value = ((level + 1) % 2) * 0xffffffff;
+ memset(img, 0, 128);
+
+ /* generate black and white mipmap levels */
+ if (value)
+ for (i = 0; i < size[level] / 4; i += 2)
+ ((int*)img)[i] = value;
+
+ glCompressedTexImage2D(GL_TEXTURE_2D, level,
+ GL_COMPRESSED_RGB_S3TC_DXT1_EXT,
+ width, height, 0,
+ size[level], img);
+#endif
+}
+
+
+static void
+makeImages(void)
+{
+ int i, sz;
+
+ for (i = 0, sz = SIZE; sz >= 1; i++, sz /= 2) {
+ makeImage(i, sz, sz);
+ printf("Level %d size: %d x %d\n", i, sz, sz);
+ }
+}
+
+
+static void
+myInit(void)
+{
+
+ initValues();
+
+ glEnable(GL_DEPTH_TEST);
+ glDepthFunc(GL_LESS);
+ glShadeModel(GL_FLAT);
+
+ glTranslatef(0.0, 0.0, -3.6);
+
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+ glGenTextures(1, &texImage);
+ glBindTexture(GL_TEXTURE_2D, texImage);
+ makeImages();
+
+ glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+ glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+ glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
+ glEnable(GL_TEXTURE_2D);
+}
+
+
+static void
+display(void)
+{
+ GLfloat tcm = 1.0;
+ glBindTexture(GL_TEXTURE_2D, texImage);
+
+ printf("BASE_LEVEL=%d MAX_LEVEL=%d MIN_LOD=%.2g MAX_LOD=%.2g Bias=%.2g Filter=%s\n",
+ BaseLevel, MaxLevel, MinLod, MaxLod, LodBias,
+ NearestFilter ? "NEAREST" : "LINEAR");
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, BaseLevel);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, MaxLevel);
+
+ glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_LOD, MinLod);
+ glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAX_LOD, MaxLod);
+
+ if (NearestFilter) {
+ glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
+ GL_NEAREST_MIPMAP_NEAREST);
+ }
+ else {
+ glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
+ GL_LINEAR_MIPMAP_LINEAR);
+ }
+
+ glTexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT, GL_TEXTURE_LOD_BIAS_EXT, LodBias);
+
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+ glBegin(GL_QUADS);
+ glTexCoord2f(0.0, 0.0); glVertex3f(-2.0, -1.0, 0.0);
+ glTexCoord2f(0.0, tcm); glVertex3f(-2.0, 1.0, 0.0);
+ glTexCoord2f(tcm * 3000.0, tcm); glVertex3f(3000.0, 1.0, -6000.0);
+ glTexCoord2f(tcm * 3000.0, 0.0); glVertex3f(3000.0, -1.0, -6000.0);
+ glEnd();
+ glFlush();
+}
+
+
+static void
+myReshape(int w, int h)
+{
+ glViewport(0, 0, w, h);
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ gluPerspective(60.0, 1.0*(GLfloat)w/(GLfloat)h, 1.0, 30000.0);
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+}
+
+
+static void
+key(unsigned char k, int x, int y)
+{
+ (void) x;
+ (void) y;
+ switch (k) {
+ case 'b':
+ BaseLevel--;
+ if (BaseLevel < 0)
+ BaseLevel = 0;
+ break;
+ case 'B':
+ BaseLevel++;
+ if (BaseLevel > 10)
+ BaseLevel = 10;
+ break;
+ case 'm':
+ MaxLevel--;
+ if (MaxLevel < 0)
+ MaxLevel = 0;
+ break;
+ case 'M':
+ MaxLevel++;
+ if (MaxLevel > 10)
+ MaxLevel = 10;
+ break;
+ case 'l':
+ LodBias -= 0.25;
+ break;
+ case 'L':
+ LodBias += 0.25;
+ break;
+ case 'n':
+ MinLod -= 0.25;
+ break;
+ case 'N':
+ MinLod += 0.25;
+ break;
+ case 'x':
+ MaxLod -= 0.25;
+ break;
+ case 'X':
+ MaxLod += 0.25;
+ break;
+ case 'f':
+ NearestFilter = !NearestFilter;
+ break;
+ case ' ':
+ initValues();
+ break;
+ case 27: /* Escape */
+ exit(0);
+ break;
+ default:
+ return;
+ }
+ glutPostRedisplay();
+}
+
+
+static void
+usage(void)
+{
+ printf("usage:\n");
+ printf(" b/B decrease/increase GL_TEXTURE_BASE_LEVEL\n");
+ printf(" m/M decrease/increase GL_TEXTURE_MAX_LEVEL\n");
+ printf(" n/N decrease/increase GL_TEXTURE_MIN_LOD\n");
+ printf(" x/X decrease/increase GL_TEXTURE_MAX_LOD\n");
+ printf(" l/L decrease/increase GL_TEXTURE_LOD_BIAS\n");
+ printf(" f toggle nearest/linear filtering\n");
+ printf(" SPACE reset values\n");
+}
+
+
+int
+main(int argc, char** argv)
+{
+ glutInit(&argc, argv);
+ glutInitDisplayMode (GLUT_SINGLE | GLUT_RGB | GLUT_DEPTH);
+ glutInitWindowSize (600, 600);
+ glutCreateWindow (argv[0]);
+ glewInit();
+ myInit();
+ glutReshapeFunc (myReshape);
+ glutDisplayFunc(display);
+ glutKeyboardFunc(key);
+ usage();
+ glutMainLoop();
+ return 0; /* ANSI C requires main to return int. */
+}
diff --git a/progs/tests/mipmap_view.c b/progs/tests/mipmap_view.c
index 16f3584f70..808d348699 100644
--- a/progs/tests/mipmap_view.c
+++ b/progs/tests/mipmap_view.c
@@ -18,11 +18,27 @@
#define TEXTURE_FILE "../images/arch.rgb"
-static int TexWidth = 256, TexHeight = 256;
+#define LEVELS 8
+#define SIZE (1<<LEVELS)
+static int TexWidth = SIZE, TexHeight = SIZE;
static int WinWidth = 1044, WinHeight = 900;
static GLfloat Bias = 0.0;
static GLboolean ScaleQuads = GL_FALSE;
+static GLboolean Linear = GL_FALSE;
static GLint Win = 0;
+static GLint RenderTextureLevel = 0;
+static GLuint TexObj;
+
+
+
+static void
+CheckError(int line)
+{
+ GLenum err = glGetError();
+ if (err) {
+ printf("GL Error 0x%x at line %d\n", (int) err, line);
+ }
+}
@@ -36,6 +52,178 @@ PrintString(const char *s)
}
+
+
+static void
+MipGenTexture( void )
+{
+ /* test auto mipmap generation */
+ GLint width, height, i;
+ GLenum format;
+ GLubyte *image = LoadRGBImage(TEXTURE_FILE, &width, &height, &format);
+ if (!image) {
+ printf("Error: could not load texture image %s\n", TEXTURE_FILE);
+ exit(1);
+ }
+ /* resize to TexWidth x TexHeight */
+ if (width != TexWidth || height != TexHeight) {
+ GLubyte *newImage = malloc(TexWidth * TexHeight * 4);
+
+ fprintf(stderr, "rescale %d %d to %d %d\n", width, height,
+ TexWidth, TexHeight);
+ fflush(stderr);
+
+ gluScaleImage(format, width, height, GL_UNSIGNED_BYTE, image,
+ TexWidth, TexHeight, GL_UNSIGNED_BYTE, newImage);
+ free(image);
+ image = newImage;
+ }
+ printf("Using GL_SGIS_generate_mipmap\n");
+ glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP_SGIS, GL_TRUE);
+ glTexImage2D(GL_TEXTURE_2D, 0, format, TexWidth, TexHeight, 0,
+ format, GL_UNSIGNED_BYTE, image);
+ free(image);
+
+ /* make sure mipmap was really generated correctly */
+ width = TexWidth;
+ height = TexHeight;
+ for (i = 0; i < 9; i++) {
+ GLint w, h;
+ glGetTexLevelParameteriv(GL_TEXTURE_2D, i, GL_TEXTURE_WIDTH, &w);
+ glGetTexLevelParameteriv(GL_TEXTURE_2D, i, GL_TEXTURE_HEIGHT, &h);
+ printf("Level %d size: %d x %d\n", i, w, h);
+ assert(w == width);
+ assert(h == height);
+ width /= 2;
+ height /= 2;
+ }
+
+
+ glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP_SGIS, GL_FALSE);
+}
+
+
+
+static void
+ResetTextureLevel( int i )
+{
+ GLubyte tex2d[SIZE*SIZE][4];
+
+ {
+ GLint Width = TexWidth / (1 << i);
+ GLint Height = TexHeight / (1 << i);
+ GLint s, t;
+
+ for (s = 0; s < Width; s++) {
+ for (t = 0; t < Height; t++) {
+ tex2d[t*Width+s][0] = ((s / 16) % 2) ? 0 : 255;
+ tex2d[t*Width+s][1] = ((t / 16) % 2) ? 0 : 255;
+ tex2d[t*Width+s][2] = 128;
+ tex2d[t*Width+s][3] = 255;
+ }
+ }
+
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+
+ glTexImage2D(GL_TEXTURE_2D, i, GL_RGB, Width, Height, 0,
+ GL_RGBA, GL_UNSIGNED_BYTE, tex2d);
+ }
+}
+
+
+static void
+ResetTexture( void )
+{
+#if 0
+ /* This doesn't work so well as the arch texture is 512x512.
+ */
+ LoadRGBMipmaps(TEXTURE_FILE, GL_RGB);
+#else
+ {
+ int i;
+
+ for (i = 0; i <= LEVELS; i++)
+ {
+ ResetTextureLevel(i);
+ }
+ }
+#endif
+}
+
+
+
+
+
+
+
+static void
+RenderTexture( void )
+{
+ GLenum status;
+ GLuint MyFB;
+
+ fprintf(stderr, "RenderTextureLevel %d\n", RenderTextureLevel);
+ fflush(stderr);
+
+ /* gen framebuffer id, delete it, do some assertions, just for testing */
+ glGenFramebuffersEXT(1, &MyFB);
+ glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, MyFB);
+ assert(glIsFramebufferEXT(MyFB));
+
+ CheckError(__LINE__);
+
+ /* Render color to texture */
+ glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT,
+ GL_COLOR_ATTACHMENT0_EXT,
+ GL_TEXTURE_2D, TexObj,
+ RenderTextureLevel);
+
+
+
+ CheckError(__LINE__);
+
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glOrtho(-1.0, 1.0, -1.0, 1.0, 5.0, 25.0);
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslatef(0.0, 0.0, -15.0);
+
+ status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
+ if (status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+ printf("Framebuffer incomplete!!!\n");
+ }
+
+ glViewport(0, 0,
+ TexWidth / (1 << RenderTextureLevel),
+ TexHeight / (1 << RenderTextureLevel));
+
+ glClearColor(0.5, 0.5, 1.0, 0.0);
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ CheckError(__LINE__);
+
+ glBegin(GL_POLYGON);
+ glColor3f(1, 0, 0);
+ glVertex2f(-1, -1);
+ glColor3f(0, 1, 0);
+ glVertex2f(1, -1);
+ glColor3f(0, 0, 1);
+ glVertex2f(0, 1);
+ glEnd();
+
+
+ /* Bind normal framebuffer */
+ glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
+ CheckError(__LINE__);
+
+ glDeleteFramebuffersEXT(1, &MyFB);
+ CheckError(__LINE__);
+
+ glClearColor(0, 0, 0, 0);
+}
+
static void
Display(void)
{
@@ -43,6 +231,8 @@ Display(void)
char str[100];
int texWidth = TexWidth, texHeight = TexHeight;
+ glViewport(0, 0, WinHeight, WinHeight);
+
glClear(GL_COLOR_BUFFER_BIT);
glMatrixMode(GL_PROJECTION);
@@ -53,6 +243,15 @@ Display(void)
glColor3f(1,1,1);
+ if (Linear) {
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ }
+ else {
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_NEAREST);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ }
+
y = WinHeight - 300;
x = 4;
@@ -116,7 +315,6 @@ Reshape(int width, int height)
{
WinWidth = width;
WinHeight = height;
- glViewport(0, 0, width, height);
}
@@ -132,6 +330,24 @@ Key(unsigned char key, int x, int y)
case 'B':
Bias += 10;
break;
+ case 'l':
+ Linear = !Linear;
+ break;
+ case 'v':
+ RenderTextureLevel++;
+ break;
+ case 'V':
+ RenderTextureLevel--;
+ break;
+ case 'r':
+ RenderTexture();
+ break;
+ case 'X':
+ ResetTexture();
+ break;
+ case 'x':
+ ResetTextureLevel(RenderTextureLevel);
+ break;
case '0':
case '1':
case '2':
@@ -147,6 +363,14 @@ Key(unsigned char key, int x, int y)
case 's':
ScaleQuads = !ScaleQuads;
break;
+ case ' ':
+ MipGenTexture();
+ Bias = 0;
+ Linear = 0;
+ RenderTextureLevel = 0;
+ ScaleQuads = 0;
+ break;
+
case 27:
glutDestroyWindow(Win);
exit(0);
@@ -173,57 +397,15 @@ Init(void)
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
- if (1) {
- /* test auto mipmap generation */
- GLint width, height, i;
- GLenum format;
- GLubyte *image = LoadRGBImage(TEXTURE_FILE, &width, &height, &format);
- if (!image) {
- printf("Error: could not load texture image %s\n", TEXTURE_FILE);
- exit(1);
- }
- /* resize to TexWidth x TexHeight */
- if (width != TexWidth || height != TexHeight) {
- GLubyte *newImage = malloc(TexWidth * TexHeight * 4);
- gluScaleImage(format, width, height, GL_UNSIGNED_BYTE, image,
- TexWidth, TexHeight, GL_UNSIGNED_BYTE, newImage);
- free(image);
- image = newImage;
- }
- printf("Using GL_SGIS_generate_mipmap\n");
- glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP_SGIS, GL_TRUE);
- glTexImage2D(GL_TEXTURE_2D, 0, format, TexWidth, TexHeight, 0,
- format, GL_UNSIGNED_BYTE, image);
- free(image);
-
- /* make sure mipmap was really generated correctly */
- width = TexWidth;
- height = TexHeight;
- for (i = 0; i < 9; i++) {
- GLint w, h;
- glGetTexLevelParameteriv(GL_TEXTURE_2D, i, GL_TEXTURE_WIDTH, &w);
- glGetTexLevelParameteriv(GL_TEXTURE_2D, i, GL_TEXTURE_HEIGHT, &h);
- printf("Level %d size: %d x %d\n", i, w, h);
- assert(w == width);
- assert(h == height);
- width /= 2;
- height /= 2;
- }
- }
- else {
- if (LoadRGBMipmaps(TEXTURE_FILE, GL_RGB)) {
- printf("Using gluBuildMipmaps()\n");
- }
- else {
- printf("Error: could not load texture image %s\n", TEXTURE_FILE);
- exit(1);
- }
- }
+ glGenTextures(1, &TexObj);
+ glBindTexture(GL_TEXTURE_2D, TexObj);
+ if (1)
+ MipGenTexture();
+ else
+ ResetTexture();
/* mipmapping required for this extension */
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glGetFloatv(GL_MAX_TEXTURE_LOD_BIAS_EXT, &maxBias);
diff --git a/progs/tests/occlude.c b/progs/tests/occlude.c
new file mode 100644
index 0000000000..8f7b90984e
--- /dev/null
+++ b/progs/tests/occlude.c
@@ -0,0 +1,234 @@
+/*
+ * GL_HP_occlustion_test demo
+ *
+ * Brian Paul
+ * 31 March 2000
+ *
+ * Copyright (C) 2000 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include <GL/glut.h>
+#include <GL/glext.h>
+
+
+static GLfloat Xpos = 0;
+static GLboolean Anim = GL_TRUE;
+
+
+static void
+PrintString(const char *s)
+{
+ while (*s) {
+ glutBitmapCharacter(GLUT_BITMAP_8_BY_13, (int) *s);
+ s++;
+ }
+}
+
+
+
+static void Idle(void)
+{
+ static int lastTime = 0;
+ static int sign = +1;
+ int time = glutGet(GLUT_ELAPSED_TIME);
+ float step;
+
+ if (lastTime == 0)
+ lastTime = time;
+ else if (time - lastTime < 20) /* 50Hz update */
+ return;
+
+ step = (time - lastTime) / 1000.0 * sign;
+ lastTime = time;
+
+ Xpos += step;
+
+ if (Xpos > 2.5) {
+ Xpos = 2.5;
+ sign = -1;
+ }
+ else if (Xpos < -2.5) {
+ Xpos = -2.5;
+ sign = +1;
+ }
+ glutPostRedisplay();
+}
+
+
+static void Display( void )
+{
+ GLboolean result;
+
+ glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
+
+ glMatrixMode( GL_PROJECTION );
+ glLoadIdentity();
+ glFrustum( -1.0, 1.0, -1.0, 1.0, 5.0, 25.0 );
+ glMatrixMode( GL_MODELVIEW );
+ glLoadIdentity();
+ glTranslatef( 0.0, 0.0, -15.0 );
+
+ /* draw the occluding polygons */
+ glColor3f(0, 0.6, 0.8);
+ glBegin(GL_QUADS);
+ glVertex2f(-1.6, -1.5);
+ glVertex2f(-0.4, -1.5);
+ glVertex2f(-0.4, 1.5);
+ glVertex2f(-1.6, 1.5);
+
+ glVertex2f( 0.4, -1.5);
+ glVertex2f( 1.6, -1.5);
+ glVertex2f( 1.6, 1.5);
+ glVertex2f( 0.4, 1.5);
+ glEnd();
+
+ /* draw the test polygon with occlusion testing */
+ glPushMatrix();
+ glTranslatef(Xpos, 0, -0.5);
+ glScalef(0.3, 0.3, 1.0);
+ glRotatef(-90.0 * Xpos, 0, 0, 1);
+
+ glEnable(GL_OCCLUSION_TEST_HP); /* NOTE: enabling the occlusion test */
+ /* doesn't clear the result flag! */
+ glColorMask(0, 0, 0, 0);
+ glDepthMask(GL_FALSE);
+ /* this call clear's the result flag. Not really needed for this demo. */
+ glGetBooleanv(GL_OCCLUSION_TEST_RESULT_HP, &result);
+
+ glBegin(GL_POLYGON);
+ glVertex3f(-1, -1, 0);
+ glVertex3f( 1, -1, 0);
+ glVertex3f( 1, 1, 0);
+ glVertex3f(-1, 1, 0);
+ glEnd();
+
+ glGetBooleanv(GL_OCCLUSION_TEST_RESULT_HP, &result);
+ /* turn off occlusion testing */
+ glDisable(GL_OCCLUSION_TEST_HP);
+ glColorMask(1, 1, 1, 1);
+ glDepthMask(GL_TRUE);
+
+ /* draw the green rect, so we can see what's going on */
+ glColor3f(0.8, 0.5, 0);
+ glBegin(GL_POLYGON);
+ glVertex3f(-1, -1, 0);
+ glVertex3f( 1, -1, 0);
+ glVertex3f( 1, 1, 0);
+ glVertex3f(-1, 1, 0);
+ glEnd();
+
+ glPopMatrix();
+
+
+ /* Print result message */
+ glMatrixMode( GL_PROJECTION );
+ glLoadIdentity();
+ glOrtho( -1.0, 1.0, -1.0, 1.0, -1.0, 1.0 );
+ glMatrixMode( GL_MODELVIEW );
+ glLoadIdentity();
+
+ glColor3f(1, 1, 1);
+ glRasterPos3f(-0.25, -0.7, 0);
+
+ if (result)
+ PrintString(" Visible");
+ else
+ PrintString("Fully Occluded");
+
+ glutSwapBuffers();
+}
+
+
+static void Reshape( int width, int height )
+{
+ glViewport( 0, 0, width, height );
+}
+
+
+static void Key( unsigned char key, int x, int y )
+{
+ (void) x;
+ (void) y;
+ switch (key) {
+ case 'a':
+ Anim = !Anim;
+ if (Anim)
+ glutIdleFunc( Idle );
+ else
+ glutIdleFunc( NULL );
+ break;
+ case 27:
+ exit(0);
+ break;
+ }
+ glutPostRedisplay();
+}
+
+
+static void SpecialKey( int key, int x, int y )
+{
+ const GLfloat step = 0.1;
+ (void) x;
+ (void) y;
+ switch (key) {
+ case GLUT_KEY_LEFT:
+ Xpos -= step;
+ break;
+ case GLUT_KEY_RIGHT:
+ Xpos += step;
+ break;
+ }
+ glutPostRedisplay();
+}
+
+
+static void Init( void )
+{
+ const char *ext = (const char *) glGetString(GL_EXTENSIONS);
+ if (!strstr(ext, "GL_HP_occlusion_test")) {
+ printf("Sorry, this demo requires the GL_HP_occlusion_test extension\n");
+ exit(-1);
+ }
+
+ glEnable(GL_DEPTH_TEST);
+}
+
+
+int main( int argc, char *argv[] )
+{
+ glutInit( &argc, argv );
+ glutInitWindowPosition( 0, 0 );
+ glutInitWindowSize( 400, 400 );
+ glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH );
+ glutCreateWindow(argv[0]);
+ glutReshapeFunc( Reshape );
+ glutKeyboardFunc( Key );
+ glutSpecialFunc( SpecialKey );
+ glutIdleFunc( Idle );
+ glutDisplayFunc( Display );
+ Init();
+ glutMainLoop();
+ return 0;
+}
diff --git a/progs/tests/projtex.c b/progs/tests/projtex.c
deleted file mode 100644
index 800d81ecd6..0000000000
--- a/progs/tests/projtex.c
+++ /dev/null
@@ -1,1030 +0,0 @@
-
-/* projtex.c - by David Yu and David Blythe, SGI */
-
-/**
- ** Demonstrates simple projective texture mapping.
- **
- ** Button1 changes view, Button2 moves texture.
- **
- ** (See: Segal, Korobkin, van Widenfelt, Foran, and Haeberli
- ** "Fast Shadows and Lighting Effects Using Texture Mapping", SIGGRAPH '92)
- **
- ** 1994,1995 -- David G Yu
- **
- ** cc -o projtex projtex.c texture.c -lglut -lGLU -lGL -lX11 -lm
- **/
-
-#include <assert.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <math.h>
-#include <GL/glew.h>
-#include <GL/glut.h>
-#if 0
-#include "texture.h"
-#else
-#include "../util/readtex.c"
-#endif
-
-
-/* Some <math.h> files do not define M_PI... */
-#ifndef M_PI
-#define M_PI 3.14159265358979323846
-#endif
-
-#define MAX_TEX 4
-int NumTextures = 1;
-
-int winWidth, winHeight;
-
-GLboolean redrawContinuously = GL_FALSE;
-
-float angle, axis[3];
-enum MoveModes {
- MoveNone, MoveView, MoveObject, MoveTexture
-};
-enum MoveModes mode = MoveNone;
-
-GLfloat objectXform[4][4];
-GLfloat textureXform[MAX_TEX][4][4];
-
-void (*drawObject) (void);
-void (*loadTexture) (void);
-GLboolean textureEnabled = GL_TRUE;
-GLboolean showProjection = GL_TRUE;
-GLboolean linearFilter = GL_TRUE;
-
-char *texFilename[MAX_TEX] = {
- "../images/girl.rgb",
- "../images/tile.rgb",
- "../images/bw.rgb",
- "../images/reflect.rgb"
-};
-
-
-GLfloat zoomFactor = 1.0;
-
-/*****************************************************************/
-
-
-void ActiveTexture(int i)
-{
- glActiveTextureARB(i);
-}
-
-
-/* matrix = identity */
-void
-matrixIdentity(GLfloat matrix[16])
-{
- matrix[0] = 1.0;
- matrix[1] = 0.0;
- matrix[2] = 0.0;
- matrix[3] = 0.0;
- matrix[4] = 0.0;
- matrix[5] = 1.0;
- matrix[6] = 0.0;
- matrix[7] = 0.0;
- matrix[8] = 0.0;
- matrix[9] = 0.0;
- matrix[10] = 1.0;
- matrix[11] = 0.0;
- matrix[12] = 0.0;
- matrix[13] = 0.0;
- matrix[14] = 0.0;
- matrix[15] = 1.0;
-}
-
-/* matrix2 = transpose(matrix1) */
-void
-matrixTranspose(GLfloat matrix2[16], GLfloat matrix1[16])
-{
- matrix2[0] = matrix1[0];
- matrix2[1] = matrix1[4];
- matrix2[2] = matrix1[8];
- matrix2[3] = matrix1[12];
-
- matrix2[4] = matrix1[1];
- matrix2[5] = matrix1[5];
- matrix2[6] = matrix1[9];
- matrix2[7] = matrix1[13];
-
- matrix2[8] = matrix1[2];
- matrix2[9] = matrix1[6];
- matrix2[10] = matrix1[10];
- matrix2[11] = matrix1[14];
-
- matrix2[12] = matrix1[3];
- matrix2[13] = matrix1[7];
- matrix2[14] = matrix1[14];
- matrix2[15] = matrix1[15];
-}
-
-/*****************************************************************/
-
-/* load SGI .rgb image (pad with a border of the specified width and color) */
-#if 0
-static void
-imgLoad(char *filenameIn, int borderIn, GLfloat borderColorIn[4],
- int *wOut, int *hOut, GLubyte ** imgOut)
-{
- int border = borderIn;
- int width, height;
- int w, h;
- GLubyte *image, *img, *p;
- int i, j, components;
-
- image = (GLubyte *) read_texture(filenameIn, &width, &height, &components);
- w = width + 2 * border;
- h = height + 2 * border;
- img = (GLubyte *) calloc(w * h, 4 * sizeof(unsigned char));
-
- p = img;
- for (j = -border; j < height + border; ++j) {
- for (i = -border; i < width + border; ++i) {
- if (0 <= j && j <= height - 1 && 0 <= i && i <= width - 1) {
- p[0] = image[4 * (j * width + i) + 0];
- p[1] = image[4 * (j * width + i) + 1];
- p[2] = image[4 * (j * width + i) + 2];
- p[3] = 0xff;
- } else {
- p[0] = borderColorIn[0] * 0xff;
- p[1] = borderColorIn[1] * 0xff;
- p[2] = borderColorIn[2] * 0xff;
- p[3] = borderColorIn[3] * 0xff;
- }
- p += 4;
- }
- }
- free(image);
- *wOut = w;
- *hOut = h;
- *imgOut = img;
-}
-#endif
-
-
-/*****************************************************************/
-
-/* Load the image file specified on the command line as the current texture */
-void
-loadImageTextures(void)
-{
- GLfloat borderColor[4] =
- {1.0, 1.0, 1.0, 1.0};
- int tex;
-
- for (tex = 0; tex < NumTextures; tex++) {
- GLubyte *image, *texData3, *texData4;
- GLint imgWidth, imgHeight;
- GLenum imgFormat;
- int i, j;
-
- printf("loading %s\n", texFilename[tex]);
- image = LoadRGBImage(texFilename[tex], &imgWidth, &imgHeight, &imgFormat);
- if (!image) {
- printf("can't find %s\n", texFilename[tex]);
- exit(1);
- }
- assert(imgFormat == GL_RGB);
-
- /* scale to 256x256 */
- texData3 = malloc(256 * 256 * 4);
- texData4 = malloc(256 * 256 * 4);
- assert(texData3);
- assert(texData4);
- gluScaleImage(imgFormat, imgWidth, imgHeight, GL_UNSIGNED_BYTE, image,
- 256, 256, GL_UNSIGNED_BYTE, texData3);
-
- /* convert to rgba */
- for (i = 0; i < 256 * 256; i++) {
- texData4[i*4+0] = texData3[i*3+0];
- texData4[i*4+1] = texData3[i*3+1];
- texData4[i*4+2] = texData3[i*3+2];
- texData4[i*4+3] = 128;
- }
-
- /* put transparent border around image */
- for (i = 0; i < 256; i++) {
- texData4[i*4+0] = 255;
- texData4[i*4+1] = 255;
- texData4[i*4+2] = 255;
- texData4[i*4+3] = 0;
- }
- j = 256 * 255 * 4;
- for (i = 0; i < 256; i++) {
- texData4[j + i*4+0] = 255;
- texData4[j + i*4+1] = 255;
- texData4[j + i*4+2] = 255;
- texData4[j + i*4+3] = 0;
- }
- for (i = 0; i < 256; i++) {
- j = i * 256 * 4;
- texData4[j+0] = 255;
- texData4[j+1] = 255;
- texData4[j+2] = 255;
- texData4[j+3] = 0;
- }
- for (i = 0; i < 256; i++) {
- j = i * 256 * 4 + 255 * 4;
- texData4[j+0] = 255;
- texData4[j+1] = 255;
- texData4[j+2] = 255;
- texData4[j+3] = 0;
- }
-
- ActiveTexture(GL_TEXTURE0_ARB + tex);
- glBindTexture(GL_TEXTURE_2D, tex + 1);
-
- glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
- glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 256, 256, 0,
- GL_RGBA, GL_UNSIGNED_BYTE, texData4);
-
- if (linearFilter) {
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
- } else {
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
- }
- glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_BORDER_COLOR, borderColor);
- }
-}
-
-/* Create a simple spotlight pattern and make it the current texture */
-void
-loadSpotlightTexture(void)
-{
- static int texWidth = 64, texHeight = 64;
- static GLubyte *texData;
- GLfloat borderColor[4] =
- {0.1, 0.1, 0.1, 1.0};
-
- if (!texData) {
- GLubyte *p;
- int i, j;
-
- texData = (GLubyte *) malloc(texWidth * texHeight * 4 * sizeof(GLubyte));
-
- p = texData;
- for (j = 0; j < texHeight; ++j) {
- float dy = (texHeight * 0.5 - j + 0.5) / (texHeight * 0.5);
-
- for (i = 0; i < texWidth; ++i) {
- float dx = (texWidth * 0.5 - i + 0.5) / (texWidth * 0.5);
- float r = cos(M_PI / 2.0 * sqrt(dx * dx + dy * dy));
- float c;
-
- r = (r < 0) ? 0 : r * r;
- c = 0xff * (r + borderColor[0]);
- p[0] = (c <= 0xff) ? c : 0xff;
- c = 0xff * (r + borderColor[1]);
- p[1] = (c <= 0xff) ? c : 0xff;
- c = 0xff * (r + borderColor[2]);
- p[2] = (c <= 0xff) ? c : 0xff;
- c = 0xff * (r + borderColor[3]);
- p[3] = (c <= 0xff) ? c : 0xff;
- p += 4;
- }
- }
- }
- if (linearFilter) {
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
- } else {
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
- }
- glTexParameterfv(GL_TEXTURE_2D, GL_TEXTURE_BORDER_COLOR, borderColor);
- gluBuild2DMipmaps(GL_TEXTURE_2D, 4, texWidth, texHeight,
- GL_RGBA, GL_UNSIGNED_BYTE, texData);
-}
-
-/*****************************************************************/
-
-void
-checkErrors(void)
-{
- GLenum error;
- while ((error = glGetError()) != GL_NO_ERROR) {
- fprintf(stderr, "Error: %s\n", (char *) gluErrorString(error));
- }
-}
-
-void
-drawCube(void)
-{
- glBegin(GL_QUADS);
-
- glNormal3f(-1.0, 0.0, 0.0);
- glColor3f(0.80, 0.50, 0.50);
- glVertex3f(-0.5, -0.5, -0.5);
- glVertex3f(-0.5, -0.5, 0.5);
- glVertex3f(-0.5, 0.5, 0.5);
- glVertex3f(-0.5, 0.5, -0.5);
-
- glNormal3f(1.0, 0.0, 0.0);
- glColor3f(0.50, 0.80, 0.50);
- glVertex3f(0.5, 0.5, 0.5);
- glVertex3f(0.5, -0.5, 0.5);
- glVertex3f(0.5, -0.5, -0.5);
- glVertex3f(0.5, 0.5, -0.5);
-
- glNormal3f(0.0, -1.0, 0.0);
- glColor3f(0.50, 0.50, 0.80);
- glVertex3f(-0.5, -0.5, -0.5);
- glVertex3f(0.5, -0.5, -0.5);
- glVertex3f(0.5, -0.5, 0.5);
- glVertex3f(-0.5, -0.5, 0.5);
-
- glNormal3f(0.0, 1.0, 0.0);
- glColor3f(0.50, 0.80, 0.80);
- glVertex3f(0.5, 0.5, 0.5);
- glVertex3f(0.5, 0.5, -0.5);
- glVertex3f(-0.5, 0.5, -0.5);
- glVertex3f(-0.5, 0.5, 0.5);
-
- glNormal3f(0.0, 0.0, -1.0);
- glColor3f(0.80, 0.50, 0.80);
- glVertex3f(-0.5, -0.5, -0.5);
- glVertex3f(-0.5, 0.5, -0.5);
- glVertex3f(0.5, 0.5, -0.5);
- glVertex3f(0.5, -0.5, -0.5);
-
- glNormal3f(0.0, 0.0, 1.0);
- glColor3f(1.00, 0.80, 0.50);
- glVertex3f(0.5, 0.5, 0.5);
- glVertex3f(-0.5, 0.5, 0.5);
- glVertex3f(-0.5, -0.5, 0.5);
- glVertex3f(0.5, -0.5, 0.5);
- glEnd();
-}
-
-void
-drawDodecahedron(void)
-{
-#define A (0.5 * 1.61803) /* (sqrt(5) + 1) / 2 */
-#define B (0.5 * 0.61803) /* (sqrt(5) - 1) / 2 */
-#define C (0.5 * 1.0)
- GLfloat vertexes[20][3] =
- {
- {-A, 0.0, B},
- {-A, 0.0, -B},
- {A, 0.0, -B},
- {A, 0.0, B},
- {B, -A, 0.0},
- {-B, -A, 0.0},
- {-B, A, 0.0},
- {B, A, 0.0},
- {0.0, B, -A},
- {0.0, -B, -A},
- {0.0, -B, A},
- {0.0, B, A},
- {-C, -C, C},
- {-C, -C, -C},
- {C, -C, -C},
- {C, -C, C},
- {-C, C, C},
- {-C, C, -C},
- {C, C, -C},
- {C, C, C},
- };
-#undef A
-#undef B
-#undef C
- GLint polygons[12][5] =
- {
- {0, 12, 10, 11, 16},
- {1, 17, 8, 9, 13},
- {2, 14, 9, 8, 18},
- {3, 19, 11, 10, 15},
- {4, 14, 2, 3, 15},
- {5, 12, 0, 1, 13},
- {6, 17, 1, 0, 16},
- {7, 19, 3, 2, 18},
- {8, 17, 6, 7, 18},
- {9, 14, 4, 5, 13},
- {10, 12, 5, 4, 15},
- {11, 19, 7, 6, 16},
- };
- int i;
-
- glColor3f(0.75, 0.75, 0.75);
- for (i = 0; i < 12; ++i) {
- GLfloat *p0, *p1, *p2, d;
- GLfloat u[3], v[3], n[3];
-
- p0 = &vertexes[polygons[i][0]][0];
- p1 = &vertexes[polygons[i][1]][0];
- p2 = &vertexes[polygons[i][2]][0];
-
- u[0] = p2[0] - p1[0];
- u[1] = p2[1] - p1[1];
- u[2] = p2[2] - p1[2];
-
- v[0] = p0[0] - p1[0];
- v[1] = p0[1] - p1[1];
- v[2] = p0[2] - p1[2];
-
- n[0] = u[1] * v[2] - u[2] * v[1];
- n[1] = u[2] * v[0] - u[0] * v[2];
- n[2] = u[0] * v[1] - u[1] * v[0];
-
- d = 1.0 / sqrt(n[0] * n[0] + n[1] * n[1] + n[2] * n[2]);
- n[0] *= d;
- n[1] *= d;
- n[2] *= d;
-
- glBegin(GL_POLYGON);
- glNormal3fv(n);
- glVertex3fv(p0);
- glVertex3fv(p1);
- glVertex3fv(p2);
- glVertex3fv(vertexes[polygons[i][3]]);
- glVertex3fv(vertexes[polygons[i][4]]);
- glEnd();
- }
-}
-
-void
-drawSphere(void)
-{
- int numMajor = 24;
- int numMinor = 32;
- float radius = 0.8;
- double majorStep = (M_PI / numMajor);
- double minorStep = (2.0 * M_PI / numMinor);
- int i, j;
-
- glColor3f(0.50, 0.50, 0.50);
- for (i = 0; i < numMajor; ++i) {
- double a = i * majorStep;
- double b = a + majorStep;
- double r0 = radius * sin(a);
- double r1 = radius * sin(b);
- GLfloat z0 = radius * cos(a);
- GLfloat z1 = radius * cos(b);
-
- glBegin(GL_TRIANGLE_STRIP);
- for (j = 0; j <= numMinor; ++j) {
- double c = j * minorStep;
- GLfloat x = cos(c);
- GLfloat y = sin(c);
-
- glNormal3f((x * r0) / radius, (y * r0) / radius, z0 / radius);
- glTexCoord2f(j / (GLfloat) numMinor, i / (GLfloat) numMajor);
- glVertex3f(x * r0, y * r0, z0);
-
- glNormal3f((x * r1) / radius, (y * r1) / radius, z1 / radius);
- glTexCoord2f(j / (GLfloat) numMinor, (i + 1) / (GLfloat) numMajor);
- glVertex3f(x * r1, y * r1, z1);
- }
- glEnd();
- }
-}
-
-/*****************************************************************/
-
-float xmin = -0.035, xmax = 0.035;
-float ymin = -0.035, ymax = 0.035;
-float nnear = 0.1;
-float ffar = 1.9;
-float distance = -1.0;
-
-static void
-loadTextureProjection(int texUnit, GLfloat m[16])
-{
- GLfloat mInverse[4][4];
-
- /* Should use true inverse, but since m consists only of rotations, we can
- just use the transpose. */
- matrixTranspose((GLfloat *) mInverse, m);
-
- ActiveTexture(GL_TEXTURE0_ARB + texUnit);
- glMatrixMode(GL_TEXTURE);
- glLoadIdentity();
- glTranslatef(0.5, 0.5, 0.0);
- glScalef(0.5, 0.5, 1.0);
- glFrustum(xmin, xmax, ymin, ymax, nnear, ffar);
- glTranslatef(0.0, 0.0, distance);
- glMultMatrixf((GLfloat *) mInverse);
- glMatrixMode(GL_MODELVIEW);
-}
-
-static void
-drawTextureProjection(void)
-{
- float t = ffar / nnear;
- GLfloat n[4][3];
- GLfloat f[4][3];
-
- n[0][0] = xmin;
- n[0][1] = ymin;
- n[0][2] = -(nnear + distance);
-
- n[1][0] = xmax;
- n[1][1] = ymin;
- n[1][2] = -(nnear + distance);
-
- n[2][0] = xmax;
- n[2][1] = ymax;
- n[2][2] = -(nnear + distance);
-
- n[3][0] = xmin;
- n[3][1] = ymax;
- n[3][2] = -(nnear + distance);
-
- f[0][0] = xmin * t;
- f[0][1] = ymin * t;
- f[0][2] = -(ffar + distance);
-
- f[1][0] = xmax * t;
- f[1][1] = ymin * t;
- f[1][2] = -(ffar + distance);
-
- f[2][0] = xmax * t;
- f[2][1] = ymax * t;
- f[2][2] = -(ffar + distance);
-
- f[3][0] = xmin * t;
- f[3][1] = ymax * t;
- f[3][2] = -(ffar + distance);
-
- glColor3f(1.0, 1.0, 0.0);
- glBegin(GL_LINE_LOOP);
- glVertex3fv(n[0]);
- glVertex3fv(n[1]);
- glVertex3fv(n[2]);
- glVertex3fv(n[3]);
- glVertex3fv(f[3]);
- glVertex3fv(f[2]);
- glVertex3fv(f[1]);
- glVertex3fv(f[0]);
- glVertex3fv(n[0]);
- glVertex3fv(n[1]);
- glVertex3fv(f[1]);
- glVertex3fv(f[0]);
- glVertex3fv(f[3]);
- glVertex3fv(f[2]);
- glVertex3fv(n[2]);
- glVertex3fv(n[3]);
- glEnd();
-}
-
-/*****************************************************************/
-
-void
-initialize(void)
-{
- GLfloat light0Pos[4] =
- {0.3, 0.3, 0.0, 1.0};
- GLfloat matAmb[4] =
- {0.01, 0.01, 0.01, 1.00};
- GLfloat matDiff[4] =
- {0.65, 0.65, 0.65, 1.00};
- GLfloat matSpec[4] =
- {0.30, 0.30, 0.30, 1.00};
- GLfloat matShine = 10.0;
- GLfloat eyePlaneS[] =
- {1.0, 0.0, 0.0, 0.0};
- GLfloat eyePlaneT[] =
- {0.0, 1.0, 0.0, 0.0};
- GLfloat eyePlaneR[] =
- {0.0, 0.0, 1.0, 0.0};
- GLfloat eyePlaneQ[] =
- {0.0, 0.0, 0.0, 1.0};
- int i;
-
- /* Setup Misc. */
- glClearColor(0.41, 0.41, 0.31, 0.0);
-
- glEnable(GL_DEPTH_TEST);
-
- /* glLineWidth(2.0);*/
-
- glCullFace(GL_FRONT);
- glEnable(GL_CULL_FACE);
-
- glMatrixMode(GL_PROJECTION);
- glFrustum(-0.5, 0.5, -0.5, 0.5, 1, 3);
- glMatrixMode(GL_MODELVIEW);
- glTranslatef(0, 0, -2);
-
- matrixIdentity((GLfloat *) objectXform);
- for (i = 0; i < NumTextures; i++) {
- matrixIdentity((GLfloat *) textureXform[i]);
- }
-
- glMatrixMode(GL_PROJECTION);
- glPushMatrix();
- glLoadIdentity();
- glOrtho(0, 1, 0, 1, -1, 1);
- glMatrixMode(GL_MODELVIEW);
- glPushMatrix();
- glLoadIdentity();
-
- glRasterPos2i(0, 0);
-
- glPopMatrix();
- glMatrixMode(GL_PROJECTION);
- glPopMatrix();
- glMatrixMode(GL_MODELVIEW);
-
- /* Setup Lighting */
- glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, matAmb);
- glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, matDiff);
- glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, matSpec);
- glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, matShine);
-
- glEnable(GL_COLOR_MATERIAL);
-
- glLightfv(GL_LIGHT0, GL_POSITION, light0Pos);
- glEnable(GL_LIGHT0);
-
- glLightModeli(GL_LIGHT_MODEL_TWO_SIDE, GL_TRUE);
- glEnable(GL_LIGHTING);
-
- /* Setup Texture */
-
- (*loadTexture) ();
-
-
- for (i = 0; i < NumTextures; i++) {
- ActiveTexture(GL_TEXTURE0_ARB + i);
-
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
- glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
-
- glTexGeni(GL_S, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR);
- glTexGenfv(GL_S, GL_EYE_PLANE, eyePlaneS);
-
- glTexGeni(GL_T, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR);
- glTexGenfv(GL_T, GL_EYE_PLANE, eyePlaneT);
-
- glTexGeni(GL_R, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR);
- glTexGenfv(GL_R, GL_EYE_PLANE, eyePlaneR);
-
- glTexGeni(GL_Q, GL_TEXTURE_GEN_MODE, GL_EYE_LINEAR);
- glTexGenfv(GL_Q, GL_EYE_PLANE, eyePlaneQ);
- }
-}
-
-void
-display(void)
-{
- int i;
-
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
- if (textureEnabled) {
- if (mode == MoveTexture || mode == MoveView) {
- /* Have OpenGL compute the new transformation (simple but slow). */
- for (i = 0; i < NumTextures; i++) {
- glPushMatrix();
- glLoadIdentity();
-#if 0
- if (i & 1)
- glRotatef(angle, axis[0], axis[1], axis[2]);
- else
-#endif
- glRotatef(angle*(i+1), axis[0], axis[1], axis[2]);
-
- glMultMatrixf((GLfloat *) textureXform[i]);
- glGetFloatv(GL_MODELVIEW_MATRIX, (GLfloat *) textureXform[i]);
- glPopMatrix();
- }
- }
- for (i = 0; i < NumTextures; i++) {
- loadTextureProjection(i, (GLfloat *) textureXform[i]);
- }
-
- if (showProjection) {
- for (i = 0; i < NumTextures; i++) {
- ActiveTexture(GL_TEXTURE0_ARB + i);
- glPushMatrix();
- glMultMatrixf((GLfloat *) textureXform[i]);
- glDisable(GL_LIGHTING);
- drawTextureProjection();
- glEnable(GL_LIGHTING);
- glPopMatrix();
- }
- }
- for (i = 0; i < NumTextures; i++) {
- ActiveTexture(GL_TEXTURE0_ARB + i);
- glEnable(GL_TEXTURE_2D);
- glEnable(GL_TEXTURE_GEN_S);
- glEnable(GL_TEXTURE_GEN_T);
- glEnable(GL_TEXTURE_GEN_R);
- glEnable(GL_TEXTURE_GEN_Q);
- }
- }
- if (mode == MoveObject || mode == MoveView) {
- /* Have OpenGL compute the new transformation (simple but slow). */
- glPushMatrix();
- glLoadIdentity();
- glRotatef(angle, axis[0], axis[1], axis[2]);
- glMultMatrixf((GLfloat *) objectXform);
- glGetFloatv(GL_MODELVIEW_MATRIX, (GLfloat *) objectXform);
- glPopMatrix();
- }
- glPushMatrix();
- glMultMatrixf((GLfloat *) objectXform);
- (*drawObject) ();
- glPopMatrix();
-
- for (i = 0; i < NumTextures; i++) {
- ActiveTexture(GL_TEXTURE0_ARB + i);
- glDisable(GL_TEXTURE_2D);
- glDisable(GL_TEXTURE_GEN_S);
- glDisable(GL_TEXTURE_GEN_T);
- glDisable(GL_TEXTURE_GEN_R);
- glDisable(GL_TEXTURE_GEN_Q);
- }
-
- if (zoomFactor > 1.0) {
- glDisable(GL_DEPTH_TEST);
- glCopyPixels(0, 0, winWidth / zoomFactor, winHeight / zoomFactor, GL_COLOR);
- glEnable(GL_DEPTH_TEST);
- }
- glFlush();
- glutSwapBuffers();
- checkErrors();
-}
-
-/*****************************************************************/
-
-/* simple trackball-like motion control */
-float lastPos[3];
-int lastTime;
-
-void
-ptov(int x, int y, int width, int height, float v[3])
-{
- float d, a;
-
- /* project x,y onto a hemi-sphere centered within width, height */
- v[0] = (2.0 * x - width) / width;
- v[1] = (height - 2.0 * y) / height;
- d = sqrt(v[0] * v[0] + v[1] * v[1]);
- v[2] = cos((M_PI / 2.0) * ((d < 1.0) ? d : 1.0));
- a = 1.0 / sqrt(v[0] * v[0] + v[1] * v[1] + v[2] * v[2]);
- v[0] *= a;
- v[1] *= a;
- v[2] *= a;
-}
-
-void
-startMotion(int x, int y, int but, int time)
-{
- if (but == GLUT_LEFT_BUTTON) {
- mode = MoveView;
- } else if (but == GLUT_MIDDLE_BUTTON) {
- mode = MoveTexture;
- } else {
- return;
- }
-
- lastTime = time;
- ptov(x, y, winWidth, winHeight, lastPos);
-}
-
-void
-animate(void)
-{
- glutPostRedisplay();
-}
-
-void
-vis(int visible)
-{
- if (visible == GLUT_VISIBLE) {
- if (redrawContinuously)
- glutIdleFunc(animate);
- } else {
- if (redrawContinuously)
- glutIdleFunc(NULL);
- }
-}
-
-void
-stopMotion(int but, int time)
-{
- if ((but == GLUT_LEFT_BUTTON && mode == MoveView) ||
- (but == GLUT_MIDDLE_BUTTON && mode == MoveTexture)) {
- } else {
- return;
- }
-
- if (time == lastTime) {
- /* redrawContinuously = GL_TRUE;*/
- glutIdleFunc(animate);
- } else {
- angle = 0.0;
- redrawContinuously = GL_FALSE;
- glutIdleFunc(0);
- }
- if (!redrawContinuously) {
- mode = MoveNone;
- }
-}
-
-void
-trackMotion(int x, int y)
-{
- float curPos[3], dx, dy, dz;
-
- ptov(x, y, winWidth, winHeight, curPos);
-
- dx = curPos[0] - lastPos[0];
- dy = curPos[1] - lastPos[1];
- dz = curPos[2] - lastPos[2];
- angle = 90.0 * sqrt(dx * dx + dy * dy + dz * dz);
-
- axis[0] = lastPos[1] * curPos[2] - lastPos[2] * curPos[1];
- axis[1] = lastPos[2] * curPos[0] - lastPos[0] * curPos[2];
- axis[2] = lastPos[0] * curPos[1] - lastPos[1] * curPos[0];
-
- lastTime = glutGet(GLUT_ELAPSED_TIME);
- lastPos[0] = curPos[0];
- lastPos[1] = curPos[1];
- lastPos[2] = curPos[2];
- glutPostRedisplay();
-}
-
-/*****************************************************************/
-
-void
-object(void)
-{
- static int object;
-
- object++;
- object %= 3;
- switch (object) {
- case 0:
- drawObject = drawCube;
- break;
- case 1:
- drawObject = drawDodecahedron;
- break;
- case 2:
- drawObject = drawSphere;
- break;
- default:
- break;
- }
-}
-
-static void
-nop(void)
-{
-}
-
-void
-texture(void)
-{
- static int texture = 0;
-
- texture++;
- texture %= 3;
- if (texture == 1 && texFilename == NULL) {
- /* Skip file texture if not loaded. */
- texture++;
- }
- switch (texture) {
- case 0:
- loadTexture = nop;
- textureEnabled = GL_FALSE;
- break;
- case 1:
- loadTexture = loadImageTextures;
- (*loadTexture) ();
- textureEnabled = GL_TRUE;
- break;
- case 2:
- loadTexture = loadSpotlightTexture;
- (*loadTexture) ();
- textureEnabled = GL_TRUE;
- break;
- default:
- break;
- }
-}
-
-void
-help(void)
-{
- printf("'h' - help\n");
- printf("'l' - toggle linear/nearest filter\n");
- printf("'s' - toggle projection frustum\n");
- printf("'t' - toggle projected texture\n");
- printf("'o' - toggle object\n");
- printf("'z' - increase zoom factor\n");
- printf("'Z' - decrease zoom factor\n");
- printf("left mouse - move view\n");
- printf("middle mouse - move projection\n");
-}
-
-/* ARGSUSED1 */
-void
-key(unsigned char key, int x, int y)
-{
- switch (key) {
- case '\033':
- exit(0);
- break;
- case 'l':
- linearFilter = !linearFilter;
- (*loadTexture) ();
- break;
- case 's':
- showProjection = !showProjection;
- break;
- case 't':
- texture();
- break;
- case 'o':
- object();
- break;
- case 'z':
- zoomFactor += 1.0;
- glPixelZoom(zoomFactor, zoomFactor);
- glViewport(0, 0, winWidth / zoomFactor, winHeight / zoomFactor);
- break;
- case 'Z':
- zoomFactor -= 1.0;
- if (zoomFactor < 1.0)
- zoomFactor = 1.0;
- glPixelZoom(zoomFactor, zoomFactor);
- glViewport(0, 0, winWidth / zoomFactor, winHeight / zoomFactor);
- break;
- case 'h':
- help();
- break;
- }
- glutPostRedisplay();
-}
-
-void
-mouse(int button, int state, int x, int y)
-{
- if (state == GLUT_DOWN)
- startMotion(x, y, button, glutGet(GLUT_ELAPSED_TIME));
- else if (state == GLUT_UP)
- stopMotion(button, glutGet(GLUT_ELAPSED_TIME));
- glutPostRedisplay();
-}
-
-void
-reshape(int w, int h)
-{
- winWidth = w;
- winHeight = h;
- glViewport(0, 0, w / zoomFactor, h / zoomFactor);
-}
-
-
-void
-menu(int selection)
-{
- if (selection == 666) {
- exit(0);
- }
- key((unsigned char) selection, 0, 0);
-}
-
-int
-main(int argc, char **argv)
-{
- glutInit(&argc, argv);
-
- if (argc > 1) {
- NumTextures = atoi(argv[1]);
- }
- assert(NumTextures <= MAX_TEX);
-
- glutInitDisplayMode(GLUT_RGBA | GLUT_DEPTH | GLUT_DOUBLE);
- (void) glutCreateWindow("projtex");
- glewInit();
-
- loadTexture = loadImageTextures;
- drawObject = drawCube;
- initialize();
- glutDisplayFunc(display);
- glutKeyboardFunc(key);
- glutReshapeFunc(reshape);
- glutMouseFunc(mouse);
- glutMotionFunc(trackMotion);
- glutVisibilityFunc(vis);
- glutCreateMenu(menu);
- glutAddMenuEntry("Toggle showing projection", 's');
- glutAddMenuEntry("Switch texture", 't');
- glutAddMenuEntry("Switch object", 'o');
- glutAddMenuEntry("Toggle filtering", 'l');
- glutAddMenuEntry("Quit", 666);
- glutAttachMenu(GLUT_RIGHT_BUTTON);
- texture();
- glutMainLoop();
- return 0; /* ANSI C requires main to return int. */
-}
diff --git a/progs/tests/scissor-viewport.c b/progs/tests/scissor-viewport.c
new file mode 100644
index 0000000000..582e65fb72
--- /dev/null
+++ b/progs/tests/scissor-viewport.c
@@ -0,0 +1,138 @@
+/*
+ * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc.
+ * Copyright (c) 2009 VMware, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and
+ * its documentation for any purpose is hereby granted without fee, provided
+ * that (i) the above copyright notices and this permission notice appear in
+ * all copies of the software and related documentation, and (ii) the name of
+ * Silicon Graphics may not be used in any advertising or
+ * publicity relating to the software without the specific, prior written
+ * permission of Silicon Graphics.
+ *
+ * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF
+ * ANY KIND,
+ * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
+ * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR
+ * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
+ * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+ * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
+ * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <GL/glut.h>
+
+struct program
+{
+ unsigned width;
+ unsigned height;
+ int i;
+};
+
+struct program prog;
+
+static void init(void)
+{
+ fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+ fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION));
+ fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR));
+ fflush(stderr);
+
+ prog.i = 0;
+}
+
+static void reshape(int width, int height)
+{
+ glViewport(0, 0, 100, 100);
+
+ prog.width = width;
+ prog.height = height;
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+ glMatrixMode(GL_MODELVIEW);
+}
+
+static void key(unsigned char key, int x, int y)
+{
+
+ switch (key) {
+ case 27:
+ exit(1);
+ default:
+ glutPostRedisplay();
+ return;
+ }
+}
+
+static void drawQuad(void)
+{
+ glBegin(GL_QUADS);
+ glVertex2d(-1.0, -1.0);
+ glVertex2d( 1.0, -1.0);
+ glVertex2d( 1.0, 1.0);
+ glVertex2d(-1.0, 1.0);
+ glEnd();
+}
+
+static void draw(void)
+{
+ int i;
+
+ glClearColor(0.0, 0.0, 1.0, 0.0);
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ i = prog.i++;
+ if (prog.i >= 3)
+ prog.i = 0;
+
+ glEnable(GL_SCISSOR_TEST);
+
+ {
+ glColor4d(1.0, 0.0, 0.0, 1.0);
+
+ glScissor(i, i, 10 - 2*i, 10 - 2*i);
+ drawQuad();
+ }
+
+ glDisable(GL_SCISSOR_TEST);
+
+ //glutSwapBuffers();
+ glFlush();
+}
+
+int main(int argc, char **argv)
+{
+ GLenum type;
+
+ glutInit(&argc, argv);
+
+ prog.width = 200;
+ prog.height = 200;
+
+ glutInitWindowPosition(100, 0);
+ glutInitWindowSize(prog.width, prog.height);
+
+ //type = GLUT_RGB | GLUT_DOUBLE;
+ type = GLUT_RGB | GLUT_SINGLE;
+ glutInitDisplayMode(type);
+
+ if (glutCreateWindow(*argv) == GL_FALSE) {
+ exit(1);
+ }
+
+ init();
+
+ glutReshapeFunc(reshape);
+ glutKeyboardFunc(key);
+ glutDisplayFunc(draw);
+ glutMainLoop();
+ return 0;
+}
diff --git a/progs/tests/scissor.c b/progs/tests/scissor.c
new file mode 100644
index 0000000000..2dfd2174e8
--- /dev/null
+++ b/progs/tests/scissor.c
@@ -0,0 +1,168 @@
+/*
+ * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc.
+ * Copyright (c) 2009 VMware, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and
+ * its documentation for any purpose is hereby granted without fee, provided
+ * that (i) the above copyright notices and this permission notice appear in
+ * all copies of the software and related documentation, and (ii) the name of
+ * Silicon Graphics may not be used in any advertising or
+ * publicity relating to the software without the specific, prior written
+ * permission of Silicon Graphics.
+ *
+ * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF
+ * ANY KIND,
+ * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
+ * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR
+ * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
+ * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+ * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
+ * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <GL/glut.h>
+
+struct program
+{
+ unsigned width;
+ unsigned height;
+ unsigned quads;
+};
+
+struct program prog;
+
+static void init(void)
+{
+ fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+ fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION));
+ fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR));
+ fflush(stderr);
+}
+
+static void reshape(int width, int height)
+{
+
+ glViewport(0, 0, (GLint)width, (GLint)height);
+
+ prog.width = width;
+ prog.height = height;
+
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0);
+ glMatrixMode(GL_MODELVIEW);
+}
+
+static void key(unsigned char key, int x, int y)
+{
+
+ switch (key) {
+ case 27:
+ exit(1);
+ default:
+ prog.quads = !prog.quads;
+ glutPostRedisplay();
+ return;
+ }
+}
+
+static void drawQuad(void)
+{
+
+ if (prog.quads) {
+ glBegin(GL_QUADS);
+ glVertex2d(-1.0, -1.0);
+ glVertex2d( 1.0, -1.0);
+ glVertex2d( 1.0, 1.0);
+ glVertex2d(-1.0, 1.0);
+ glEnd();
+ } else {
+ glClear(GL_COLOR_BUFFER_BIT);
+ }
+}
+
+static void draw(void)
+{
+ glClearColor(0.0, 0.0, 1.0, 0.0);
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ printf("drawing with %s\n", prog.quads ? "quads" : "clears");
+
+ glEnable(GL_SCISSOR_TEST);
+
+ {
+ glClearColor(1.0, 0.0, 0.0, 1.0);
+ glColor4d(1.0, 0.0, 0.0, 1.0);
+
+ glScissor(1, 1, 10, 10);
+ drawQuad();
+ glScissor(1, prog.height - 11, 10, 10);
+ drawQuad();
+ glScissor(prog.width - 11, prog.height - 11, 10, 10);
+ drawQuad();
+ }
+
+ {
+ glClearColor(0.0, 1.0, 0.0, 1.0);
+ glColor4d(0.0, 1.0, 0.0, 1.0);
+
+ glScissor(12, 1, 10, 10);
+ drawQuad();
+ glScissor(12, prog.height - 11, 10, 10);
+ drawQuad();
+ glScissor(prog.width - 22, prog.height - 11, 10, 10);
+ drawQuad();
+ }
+
+ {
+ glClearColor(1.0, 1.0, 0.0, 1.0);
+ glColor4d(1.0, 1.0, 0.0, 1.0);
+
+ glScissor(1, 12, 10, 10);
+ drawQuad();
+ glScissor(1, prog.height - 22, 10, 10);
+ drawQuad();
+ glScissor(prog.width - 11, prog.height - 22, 10, 10);
+ drawQuad();
+ }
+
+ glDisable(GL_SCISSOR_TEST);
+
+ //glutSwapBuffers();
+ glFlush();
+}
+
+int main(int argc, char **argv)
+{
+ GLenum type;
+
+ glutInit(&argc, argv);
+
+ prog.width = 200;
+ prog.height = 200;
+
+ glutInitWindowPosition(100, 0);
+ glutInitWindowSize(prog.width, prog.height);
+
+ //type = GLUT_RGB | GLUT_DOUBLE;
+ type = GLUT_RGB | GLUT_SINGLE;
+ glutInitDisplayMode(type);
+
+ if (glutCreateWindow(*argv) == GL_FALSE) {
+ exit(1);
+ }
+
+ init();
+
+ glutReshapeFunc(reshape);
+ glutKeyboardFunc(key);
+ glutDisplayFunc(draw);
+ glutMainLoop();
+ return 0;
+}
diff --git a/progs/tests/shader_api.c b/progs/tests/shader_api.c
index a513ca6ba1..6453856345 100644
--- a/progs/tests/shader_api.c
+++ b/progs/tests/shader_api.c
@@ -321,10 +321,18 @@ static void run_test(const char *name, void (*callback)(void))
int main(int argc, char **argv)
{
+ const char *version;
+
glutInit(&argc, argv);
glutCreateWindow("Mesa bug demo");
glewInit();
+ version = (const char *) glGetString(GL_VERSION);
+ if (version[0] == '1') {
+ printf("Sorry, this test requires OpenGL 2.x GLSL support\n");
+ exit(0);
+ }
+
RUN_TEST(test_uniform_size_type);
RUN_TEST(test_attrib_size_type);
RUN_TEST(test_uniform_array_overflow);
diff --git a/progs/tests/streaming_rect.c b/progs/tests/streaming_rect.c
new file mode 100644
index 0000000000..f65ac4ce36
--- /dev/null
+++ b/progs/tests/streaming_rect.c
@@ -0,0 +1,327 @@
+/*
+ * GL_ARB_pixel_buffer_object test
+ *
+ * Command line options:
+ * -w WIDTH -h HEIGHT sets window size
+ *
+ */
+
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <GL/glew.h>
+#include <GL/glut.h>
+
+#include "readtex.h"
+
+
+#define ANIMATE 10
+#define PBO 11
+#define QUIT 100
+
+static GLuint DrawPBO;
+
+static GLboolean Animate = GL_TRUE;
+static GLboolean use_pbo = 1;
+static GLboolean whole_rect = 1;
+
+static GLfloat Drift = 0.0;
+static GLfloat drift_increment = 1/255.0;
+static GLfloat Xrot = 20.0, Yrot = 30.0;
+
+static GLuint Width = 1024;
+static GLuint Height = 512;
+
+
+static void Idle( void )
+{
+ if (Animate) {
+
+ Drift += drift_increment;
+ if (Drift >= 1.0)
+ Drift = 0.0;
+
+ glutPostRedisplay();
+ }
+}
+
+/*static int max( int a, int b ) { return a > b ? a : b; }*/
+
+#ifndef min
+static int min( int a, int b ) { return a < b ? a : b; }
+#endif
+
+static void DrawObject()
+{
+ GLint size = Width * Height * 4;
+
+ if (use_pbo) {
+ /* XXX: This is extremely important - semantically makes the buffer
+ * contents undefined, but in practice means that the driver can
+ * release the old copy of the texture and allocate a new one
+ * without waiting for outstanding rendering to complete.
+ */
+ glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_EXT, DrawPBO);
+ glBufferDataARB(GL_PIXEL_UNPACK_BUFFER_EXT, size, NULL, GL_STREAM_DRAW_ARB);
+
+ {
+ char *image = glMapBufferARB(GL_PIXEL_UNPACK_BUFFER_EXT, GL_WRITE_ONLY_ARB);
+
+ printf("char %d\n", (unsigned char)(Drift * 255));
+
+ memset(image, (unsigned char)(Drift * 255), size);
+
+ glUnmapBufferARB(GL_PIXEL_UNPACK_BUFFER_EXT);
+ }
+
+
+ /* BGRA is required for most hardware paths:
+ */
+ glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA, Width, Height, 0,
+ GL_BGRA, GL_UNSIGNED_BYTE, NULL);
+ }
+ else {
+ static char *image = NULL;
+
+ if (image == NULL)
+ image = malloc(size);
+
+ glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_EXT, 0);
+
+ memset(image, (unsigned char)(Drift * 255), size);
+
+ /* BGRA should be the fast path for regular uploads as well.
+ */
+ glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA, Width, Height, 0,
+ GL_BGRA, GL_UNSIGNED_BYTE, image);
+ }
+
+ {
+ int x,y,w,h;
+
+ if (whole_rect) {
+ x = y = 0;
+ w = Width;
+ h = Height;
+ }
+ else {
+ x = y = 0;
+ w = min(10, Width);
+ h = min(10, Height);
+ }
+
+ glBegin(GL_QUADS);
+
+ glTexCoord2f( x, y);
+ glVertex2f( x, y );
+
+ glTexCoord2f( x, y + h);
+ glVertex2f( x, y + h);
+
+ glTexCoord2f( x + w + .5, y + h);
+ glVertex2f( x + w, y + h );
+
+ glTexCoord2f( x + w, y + .5);
+ glVertex2f( x + w, y );
+
+ glEnd();
+ }
+}
+
+
+
+static void Display( void )
+{
+ static GLint T0 = 0;
+ static GLint Frames = 0;
+ GLint t;
+
+ glClear( GL_COLOR_BUFFER_BIT );
+
+ glPushMatrix();
+ DrawObject();
+ glPopMatrix();
+
+ glutSwapBuffers();
+
+ Frames++;
+
+ t = glutGet(GLUT_ELAPSED_TIME);
+ if (t - T0 >= 1000) {
+ GLfloat seconds = (t - T0) / 1000.0;
+
+ GLfloat fps = Frames / seconds;
+ printf("%d frames in %6.3f seconds = %6.3f FPS\n", Frames, seconds, fps);
+ fflush(stdout);
+
+ drift_increment = 2.2 * seconds / Frames;
+ T0 = t;
+ Frames = 0;
+ }
+}
+
+
+static void Reshape( int width, int height )
+{
+ glViewport( 0, 0, width, height );
+ glMatrixMode( GL_PROJECTION );
+ glLoadIdentity();
+/* glFrustum( -1.0, 1.0, -1.0, 1.0, 10.0, 100.0 ); */
+ gluOrtho2D( 0, width, height, 0 );
+ glMatrixMode( GL_MODELVIEW );
+ glLoadIdentity();
+ glTranslatef(0.375, 0.375, 0);
+}
+
+
+static void ModeMenu(int entry)
+{
+ if (entry==ANIMATE) {
+ Animate = !Animate;
+ }
+ else if (entry==PBO) {
+ use_pbo = !use_pbo;
+ }
+ else if (entry==QUIT) {
+ exit(0);
+ }
+
+ glutPostRedisplay();
+}
+
+
+static void Key( unsigned char key, int x, int y )
+{
+ (void) x;
+ (void) y;
+ switch (key) {
+ case 27:
+ exit(0);
+ break;
+ }
+ glutPostRedisplay();
+}
+
+
+static void SpecialKey( int key, int x, int y )
+{
+ float step = 3.0;
+ (void) x;
+ (void) y;
+
+ switch (key) {
+ case GLUT_KEY_UP:
+ Xrot += step;
+ break;
+ case GLUT_KEY_DOWN:
+ Xrot -= step;
+ break;
+ case GLUT_KEY_LEFT:
+ Yrot += step;
+ break;
+ case GLUT_KEY_RIGHT:
+ Yrot -= step;
+ break;
+ }
+ glutPostRedisplay();
+}
+
+
+static void Init( int argc, char *argv[] )
+{
+ const char *exten = (const char *) glGetString(GL_EXTENSIONS);
+ GLuint texObj;
+ GLint size;
+
+
+ if (!strstr(exten, "GL_ARB_pixel_buffer_object")) {
+ printf("Sorry, GL_ARB_pixel_buffer_object not supported by this renderer.\n");
+ exit(1);
+ }
+
+ glGetIntegerv(GL_MAX_TEXTURE_SIZE, &size);
+ printf("%d x %d max texture size\n", size, size);
+
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+
+ /* allocate two texture objects */
+ glGenTextures(1, &texObj);
+
+ /* setup the texture objects */
+ glActiveTextureARB(GL_TEXTURE0_ARB);
+ glBindTexture(GL_TEXTURE_RECTANGLE_ARB, texObj);
+
+ glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+
+ glGenBuffersARB(1, &DrawPBO);
+
+ glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_EXT, DrawPBO);
+ glBufferDataARB(GL_PIXEL_UNPACK_BUFFER_EXT,
+ Width * Height * 4, NULL, GL_STREAM_DRAW);
+
+ glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
+
+ glEnable(GL_TEXTURE_RECTANGLE_ARB);
+
+ glShadeModel(GL_SMOOTH);
+ glClearColor(0.3, 0.3, 0.4, 1.0);
+
+ if (argc > 1 && strcmp(argv[1], "-info")==0) {
+ printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+ printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION));
+ printf("GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR));
+ printf("GL_EXTENSIONS = %s\n", (char *) glGetString(GL_EXTENSIONS));
+ }
+}
+
+
+int main( int argc, char *argv[] )
+{
+ GLint i;
+
+ glutInit( &argc, argv );
+
+ for (i = 1; i < argc; i++) {
+ if (strcmp(argv[i], "-w") == 0) {
+ Width = atoi(argv[i+1]);
+ if (Width <= 0) {
+ printf("Error, bad width\n");
+ exit(1);
+ }
+ i++;
+ }
+ else if (strcmp(argv[i], "-h") == 0) {
+ Height = atoi(argv[i+1]);
+ if (Height <= 0) {
+ printf("Error, bad height\n");
+ exit(1);
+ }
+ i++;
+ }
+ }
+
+ glutInitWindowSize( Width, Height );
+ glutInitWindowPosition( 0, 0 );
+ glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE );
+ glutCreateWindow(argv[0] );
+ glewInit();
+
+ Init( argc, argv );
+
+ glutReshapeFunc( Reshape );
+ glutKeyboardFunc( Key );
+ glutSpecialFunc( SpecialKey );
+ glutDisplayFunc( Display );
+ glutIdleFunc( Idle );
+
+ glutCreateMenu(ModeMenu);
+ glutAddMenuEntry("Toggle Animation", ANIMATE);
+ glutAddMenuEntry("Toggle PBO", PBO);
+ glutAddMenuEntry("Quit", QUIT);
+ glutAttachMenu(GLUT_RIGHT_BUTTON);
+
+ glutMainLoop();
+ return 0;
+}
diff --git a/progs/tests/texcompress2.c b/progs/tests/texcompress2.c
index cbb8f1d3a2..b95aca9fb9 100644
--- a/progs/tests/texcompress2.c
+++ b/progs/tests/texcompress2.c
@@ -51,7 +51,6 @@ TestSubTex(void)
GLboolean all = 0*GL_TRUE;
GLubyte *buffer;
GLint size, fmt;
- int i;
glGetTexLevelParameteriv(Target, 0,
GL_TEXTURE_COMPRESSED_IMAGE_SIZE_ARB, &size);
@@ -83,6 +82,23 @@ TestSubTex(void)
static void
+TestGetTex(void)
+{
+ GLubyte *buffer;
+
+ buffer = (GLubyte *) malloc(3 * ImgWidth * ImgHeight);
+
+ glGetTexImage(GL_TEXTURE_2D,
+ 0,
+ GL_RGB,
+ GL_UNSIGNED_BYTE,
+ buffer);
+
+ free(buffer);
+}
+
+
+static void
LoadCompressedImage(const char *file)
{
const GLenum filter = GL_LINEAR;
@@ -146,7 +162,10 @@ LoadCompressedImage(const char *file)
glTexParameteri(Target, GL_TEXTURE_MIN_FILTER, filter);
glTexParameteri(Target, GL_TEXTURE_MAG_FILTER, filter);
- TestSubTex();
+ if (0)
+ TestSubTex();
+ else
+ TestGetTex();
}
diff --git a/progs/tests/texdown.c b/progs/tests/texdown.c
new file mode 100644
index 0000000000..7e46045832
--- /dev/null
+++ b/progs/tests/texdown.c
@@ -0,0 +1,477 @@
+
+/*
+ * Copyright (C) 1999 Brian Paul All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/*
+ * texdown
+ *
+ * Measure texture download speed.
+ * Use keyboard to change texture size, format, datatype, scale/bias,
+ * subimageload, etc.
+ *
+ * Brian Paul 28 January 2000
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <GL/glut.h>
+
+
+static GLsizei MaxSize = 2048;
+static GLsizei TexWidth = 1024, TexHeight = 1024, TexBorder = 0;
+static GLboolean ScaleAndBias = GL_FALSE;
+static GLboolean SubImage = GL_FALSE;
+static GLdouble DownloadRate = 0.0; /* texels/sec */
+
+static GLuint Mode = 0;
+
+
+/* Try and avoid L2 cache effects by cycling through a small number of
+ * textures.
+ *
+ * At the initial size of 1024x1024x4 == 4mbyte, say 8 textures will
+ * keep us out of most caches at 32mb total.
+ *
+ * This turns into a fairly interesting question of what exactly you
+ * expect to be in cache in normal usage, and what you think should be
+ * outside. There's no rules for this, no reason to favour one usage
+ * over another except what the application you care about happens to
+ * resemble most closely.
+ *
+ * - Should the client texture image be in L2 cache? Has it just been
+ * generated or read from disk?
+ * - Does the application really use >1 texture, or is it constantly
+ * updating one image in-place?
+ *
+ * Different answers will favour different texture upload mechanisms.
+ * To upload an image that is purely outside of cache, a DMA-based
+ * upload will probably win, whereas for small, in-cache textures,
+ * copying looks good.
+ */
+#define NR_TEXOBJ 4
+static GLuint TexObj[NR_TEXOBJ];
+
+
+struct FormatRec {
+ GLenum Format;
+ GLenum Type;
+ GLenum IntFormat;
+ GLint TexelSize;
+};
+
+
+static const struct FormatRec FormatTable[] = {
+ /* Format Type IntFormat TexelSize */
+ { GL_BGRA, GL_UNSIGNED_BYTE, GL_RGBA, 4 },
+ { GL_RGB, GL_UNSIGNED_BYTE, GL_RGB, 3 },
+ { GL_RGBA, GL_UNSIGNED_BYTE, GL_RGBA, 4 },
+ { GL_RGBA, GL_UNSIGNED_BYTE, GL_RGB, 4 },
+ { GL_RGB, GL_UNSIGNED_SHORT_5_6_5, GL_RGB, 2 },
+ { GL_LUMINANCE, GL_UNSIGNED_BYTE, GL_LUMINANCE, 1 },
+ { GL_LUMINANCE_ALPHA, GL_UNSIGNED_BYTE, GL_LUMINANCE_ALPHA, 2 },
+ { GL_ALPHA, GL_UNSIGNED_BYTE, GL_ALPHA, 1 },
+};
+static GLint Format;
+
+#define NUM_FORMATS (sizeof(FormatTable)/sizeof(FormatTable[0]))
+
+static int
+BytesPerTexel(GLint format)
+{
+ return FormatTable[format].TexelSize;
+}
+
+
+static const char *
+FormatStr(GLenum format)
+{
+ switch (format) {
+ case GL_RGB:
+ return "GL_RGB";
+ case GL_RGBA:
+ return "GL_RGBA";
+ case GL_BGRA:
+ return "GL_BGRA";
+ case GL_LUMINANCE:
+ return "GL_LUMINANCE";
+ case GL_LUMINANCE_ALPHA:
+ return "GL_LUMINANCE_ALPHA";
+ case GL_ALPHA:
+ return "GL_ALPHA";
+ default:
+ return "";
+ }
+}
+
+
+static const char *
+TypeStr(GLenum type)
+{
+ switch (type) {
+ case GL_UNSIGNED_BYTE:
+ return "GL_UNSIGNED_BYTE";
+ case GL_UNSIGNED_SHORT:
+ return "GL_UNSIGNED_SHORT";
+ case GL_UNSIGNED_SHORT_5_6_5:
+ return "GL_UNSIGNED_SHORT_5_6_5";
+ case GL_UNSIGNED_SHORT_5_6_5_REV:
+ return "GL_UNSIGNED_SHORT_5_6_5_REV";
+ default:
+ return "";
+ }
+}
+
+/* On x86, there is a performance cliff for memcpy to texture memory
+ * for sources below 64 byte alignment. We do our best with this in
+ * the driver, but it is better if the images are correctly aligned to
+ * start with:
+ */
+#define ALIGN (1<<12)
+
+static unsigned long align(unsigned long value, unsigned long a)
+{
+ return (value + a - 1) & ~(a-1);
+}
+
+static void
+MeasureDownloadRate(void)
+{
+ const int w = TexWidth + 2 * TexBorder;
+ const int h = TexHeight + 2 * TexBorder;
+ const int image_bytes = align(w * h * BytesPerTexel(Format), ALIGN);
+ const int bytes = image_bytes * NR_TEXOBJ;
+ GLubyte *orig_texImage, *orig_getImage;
+ GLubyte *texImage, *getImage;
+ GLdouble t0, t1, time;
+ int count;
+ int i;
+ int offset = 0;
+ GLdouble total = 0; /* ints will tend to overflow */
+
+ printf("allocating %d bytes for %d %dx%d images\n",
+ bytes, NR_TEXOBJ, w, h);
+
+ orig_texImage = (GLubyte *) malloc(bytes + ALIGN);
+ orig_getImage = (GLubyte *) malloc(image_bytes + ALIGN);
+ if (!orig_texImage || !orig_getImage) {
+ DownloadRate = 0.0;
+ return;
+ }
+
+ printf("alloc %p %p\n", orig_texImage, orig_getImage);
+
+ texImage = (GLubyte *)align((unsigned long)orig_texImage, ALIGN);
+ getImage = (GLubyte *)align((unsigned long)orig_getImage, ALIGN);
+
+ for (i = 1; !(((unsigned long)texImage) & i); i<<=1)
+ ;
+ printf("texture image alignment: %d bytes (%p)\n", i, texImage);
+
+ for (i = 0; i < bytes; i++) {
+ texImage[i] = i & 0xff;
+ }
+
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+ glPixelStorei(GL_PACK_ALIGNMENT, 1);
+
+ if (ScaleAndBias) {
+ glPixelTransferf(GL_RED_SCALE, 0.5);
+ glPixelTransferf(GL_GREEN_SCALE, 0.5);
+ glPixelTransferf(GL_BLUE_SCALE, 0.5);
+ glPixelTransferf(GL_RED_BIAS, 0.5);
+ glPixelTransferf(GL_GREEN_BIAS, 0.5);
+ glPixelTransferf(GL_BLUE_BIAS, 0.5);
+ }
+ else {
+ glPixelTransferf(GL_RED_SCALE, 1.0);
+ glPixelTransferf(GL_GREEN_SCALE, 1.0);
+ glPixelTransferf(GL_BLUE_SCALE, 1.0);
+ glPixelTransferf(GL_RED_BIAS, 0.0);
+ glPixelTransferf(GL_GREEN_BIAS, 0.0);
+ glPixelTransferf(GL_BLUE_BIAS, 0.0);
+ }
+
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ glEnable(GL_TEXTURE_2D);
+
+ count = 0;
+ t0 = glutGet(GLUT_ELAPSED_TIME) * 0.001;
+ do {
+ int img = count%NR_TEXOBJ;
+ GLubyte *img_ptr = texImage + img * image_bytes;
+
+ glBindTexture(GL_TEXTURE_2D, TexObj[img]);
+
+ if (SubImage && count > 0) {
+ /* Only update a portion of the image each iteration. This
+ * is presumably why you'd want to use texsubimage, otherwise
+ * you may as well just call teximage again.
+ *
+ * A bigger question is whether to use a pointer that moves
+ * with each call, ie does the incoming data come from L2
+ * cache under normal circumstances, or is it pulled from
+ * uncached memory?
+ *
+ * There's a good argument to say L2 cache, ie you'd expect
+ * the data to have been recently generated. It's possible
+ * that it could have come from a file read, which may or may
+ * not have gone through the cpu.
+ */
+ glTexSubImage2D(GL_TEXTURE_2D, 0,
+ -TexBorder,
+ -TexBorder + offset * h/8,
+ w,
+ h/8,
+ FormatTable[Format].Format,
+ FormatTable[Format].Type,
+#if 1
+ texImage /* likely in L2$ */
+#else
+ img_ptr + offset * bytes/8 /* unlikely in L2$ */
+#endif
+ );
+ offset += 1;
+ offset %= 8;
+ total += w * h / 8;
+ }
+ else {
+ glTexImage2D(GL_TEXTURE_2D, 0,
+ FormatTable[Format].IntFormat, w, h, TexBorder,
+ FormatTable[Format].Format,
+ FormatTable[Format].Type,
+ img_ptr);
+ total += w*h;
+ }
+
+ /* draw a tiny polygon to force texture into texram */
+ glBegin(GL_TRIANGLES);
+ glTexCoord2f(0, 0); glVertex2f(1, 1);
+ glTexCoord2f(1, 0); glVertex2f(3, 1);
+ glTexCoord2f(0.5, 1); glVertex2f(2, 3);
+ glEnd();
+
+ t1 = glutGet(GLUT_ELAPSED_TIME) * 0.001;
+ time = t1 - t0;
+ count++;
+ } while (time < 3.0);
+
+ glDisable(GL_TEXTURE_2D);
+
+ printf("total texels=%f time=%f\n", total, time);
+ DownloadRate = total / time;
+
+
+ free(orig_texImage);
+ free(orig_getImage);
+
+ {
+ GLint err = glGetError();
+ if (err)
+ printf("GL error %d\n", err);
+ }
+}
+
+
+static void
+PrintString(const char *s)
+{
+ while (*s) {
+ glutBitmapCharacter(GLUT_BITMAP_8_BY_13, (int) *s);
+ s++;
+ }
+}
+
+
+static void
+Display(void)
+{
+ const int w = TexWidth + 2 * TexBorder;
+ const int h = TexHeight + 2 * TexBorder;
+ char s[1000];
+
+ glClear(GL_COLOR_BUFFER_BIT);
+
+ glRasterPos2i(10, 80);
+ sprintf(s, "Texture size[cursor]: %d x %d Border[b]: %d", w, h, TexBorder);
+ PrintString(s);
+
+ glRasterPos2i(10, 65);
+ sprintf(s, "Format[f]: %s Type: %s IntFormat: %s",
+ FormatStr(FormatTable[Format].Format),
+ TypeStr( FormatTable[Format].Type),
+ FormatStr(FormatTable[Format].IntFormat));
+ PrintString(s);
+
+ glRasterPos2i(10, 50);
+ sprintf(s, "Pixel Scale&Bias[p]: %s TexSubImage[s]: %s",
+ ScaleAndBias ? "Yes" : "No",
+ SubImage ? "Yes" : "No");
+ PrintString(s);
+
+ if (Mode == 0) {
+ glRasterPos2i(200, 10);
+ sprintf(s, "...Measuring...");
+ PrintString(s);
+ glutSwapBuffers();
+ glutPostRedisplay();
+ Mode++;
+ }
+ else if (Mode == 1) {
+ MeasureDownloadRate();
+ glutPostRedisplay();
+ Mode++;
+ }
+ else {
+ /* show results */
+ glRasterPos2i(10, 10);
+ sprintf(s, "Download rate: %g Mtexels/second %g MB/second",
+ DownloadRate / 1000000.0,
+ DownloadRate * BytesPerTexel(Format) / 1000000.0);
+ PrintString(s);
+ {
+ GLint r, g, b, a, l, i;
+ glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_RED_SIZE, &r);
+ glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_GREEN_SIZE, &g);
+ glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_BLUE_SIZE, &b);
+ glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_ALPHA_SIZE, &a);
+ glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_LUMINANCE_SIZE, &l);
+ glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_INTENSITY_SIZE, &i);
+ sprintf(s, "TexelBits: R=%d G=%d B=%d A=%d L=%d I=%d", r, g, b, a, l, i);
+ glRasterPos2i(10, 25);
+ PrintString(s);
+ }
+
+ glutSwapBuffers();
+ }
+}
+
+
+static void
+Reshape(int width, int height)
+{
+ glViewport( 0, 0, width, height );
+ glMatrixMode( GL_PROJECTION );
+ glLoadIdentity();
+ glOrtho(0, width, 0, height, -1, 1);
+ glMatrixMode( GL_MODELVIEW );
+ glLoadIdentity();
+}
+
+
+
+static void
+Key(unsigned char key, int x, int y)
+{
+ (void) x;
+ (void) y;
+ switch (key) {
+ case ' ':
+ Mode = 0;
+ break;
+ case 'b':
+ /* toggle border */
+ TexBorder = 1 - TexBorder;
+ Mode = 0;
+ break;
+ case 'f':
+ /* change format */
+ Format = (Format + 1) % NUM_FORMATS;
+ Mode = 0;
+ break;
+ case 'F':
+ /* change format */
+ Format = (Format - 1) % NUM_FORMATS;
+ Mode = 0;
+ break;
+ case 'p':
+ /* toggle border */
+ ScaleAndBias = !ScaleAndBias;
+ Mode = 0;
+ break;
+ case 's':
+ SubImage = !SubImage;
+ Mode = 0;
+ break;
+ case 27:
+ exit(0);
+ break;
+ }
+ glutPostRedisplay();
+}
+
+
+static void
+SpecialKey(int key, int x, int y)
+{
+ (void) x;
+ (void) y;
+ switch (key) {
+ case GLUT_KEY_UP:
+ if (TexHeight < MaxSize)
+ TexHeight *= 2;
+ break;
+ case GLUT_KEY_DOWN:
+ if (TexHeight > 1)
+ TexHeight /= 2;
+ break;
+ case GLUT_KEY_LEFT:
+ if (TexWidth > 1)
+ TexWidth /= 2;
+ break;
+ case GLUT_KEY_RIGHT:
+ if (TexWidth < MaxSize)
+ TexWidth *= 2;
+ break;
+ }
+ Mode = 0;
+ glutPostRedisplay();
+}
+
+
+static void
+Init(void)
+{
+ printf("GL_VENDOR = %s\n", (const char *) glGetString(GL_VENDOR));
+ printf("GL_VERSION = %s\n", (const char *) glGetString(GL_VERSION));
+ printf("GL_RENDERER = %s\n", (const char *) glGetString(GL_RENDERER));
+}
+
+
+int
+main(int argc, char *argv[])
+{
+ glutInit( &argc, argv );
+ glutInitWindowPosition( 0, 0 );
+ glutInitWindowSize( 600, 100 );
+ glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH );
+ glutCreateWindow(argv[0]);
+ glutReshapeFunc( Reshape );
+ glutKeyboardFunc( Key );
+ glutSpecialFunc( SpecialKey );
+ glutDisplayFunc( Display );
+ Init();
+ glutMainLoop();
+ return 0;
+}
diff --git a/progs/tests/texobj.c b/progs/tests/texobj.c
new file mode 100644
index 0000000000..40bce6e569
--- /dev/null
+++ b/progs/tests/texobj.c
@@ -0,0 +1,284 @@
+
+/*
+ * Example of using the 1.1 texture object functions.
+ * Also, this demo utilizes Mesa's fast texture map path.
+ *
+ * Brian Paul June 1996 This file is in the public domain.
+ */
+
+#include <assert.h>
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "GL/glut.h"
+
+static GLuint Window = 0;
+
+static GLuint TexObj[2];
+static GLfloat Angle = 0.0f;
+static GLboolean UseObj = GL_FALSE;
+
+
+#if defined(GL_VERSION_1_1) || defined(GL_VERSION_1_2)
+# define TEXTURE_OBJECT 1
+#elif defined(GL_EXT_texture_object)
+# define TEXTURE_OBJECT 1
+# define glBindTexture(A,B) glBindTextureEXT(A,B)
+# define glGenTextures(A,B) glGenTexturesEXT(A,B)
+# define glDeleteTextures(A,B) glDeleteTexturesEXT(A,B)
+#endif
+
+
+
+
+static void draw( void )
+{
+ glClear( GL_COLOR_BUFFER_BIT );
+
+ glColor3f( 1.0, 1.0, 1.0 );
+
+ /* draw first polygon */
+ glPushMatrix();
+ glTranslatef( -1.0, 0.0, 0.0 );
+ glRotatef( Angle, 0.0, 0.0, 1.0 );
+ if (UseObj) {
+#ifdef TEXTURE_OBJECT
+ glBindTexture( GL_TEXTURE_2D, TexObj[0] );
+#endif
+ }
+ else {
+ glCallList( TexObj[0] );
+ }
+ glBegin( GL_POLYGON );
+ glTexCoord2f( 0.0, 0.0 ); glVertex2f( -1.0, -1.0 );
+ glTexCoord2f( 1.0, 0.0 ); glVertex2f( 1.0, -1.0 );
+ glTexCoord2f( 1.0, 1.0 ); glVertex2f( 1.0, 1.0 );
+ glTexCoord2f( 0.0, 1.0 ); glVertex2f( -1.0, 1.0 );
+ glEnd();
+ glPopMatrix();
+
+ /* draw second polygon */
+ glPushMatrix();
+ glTranslatef( 1.0, 0.0, 0.0 );
+ glRotatef( Angle-90.0, 0.0, 1.0, 0.0 );
+ if (UseObj) {
+#ifdef TEXTURE_OBJECT
+ glBindTexture( GL_TEXTURE_2D, TexObj[1] );
+#endif
+ }
+ else {
+ glCallList( TexObj[1] );
+ }
+ glBegin( GL_POLYGON );
+ glTexCoord2f( 0.0, 0.0 ); glVertex2f( -1.0, -1.0 );
+ glTexCoord2f( 1.0, 0.0 ); glVertex2f( 1.0, -1.0 );
+ glTexCoord2f( 1.0, 1.0 ); glVertex2f( 1.0, 1.0 );
+ glTexCoord2f( 0.0, 1.0 ); glVertex2f( -1.0, 1.0 );
+ glEnd();
+ glPopMatrix();
+
+ glutSwapBuffers();
+}
+
+
+
+static void idle( void )
+{
+ static double t0 = -1.;
+ double dt, t = glutGet(GLUT_ELAPSED_TIME) / 1000.0;
+ if (t0 < 0.0)
+ t0 = t;
+ dt = t - t0;
+ t0 = t;
+ Angle += 120.0*dt;
+ glutPostRedisplay();
+}
+
+
+
+/* change view Angle, exit upon ESC */
+static void key(unsigned char k, int x, int y)
+{
+ (void) x;
+ (void) y;
+ switch (k) {
+ case 27:
+#ifdef TEXTURE_OBJECT
+ glDeleteTextures( 2, TexObj );
+#endif
+ glutDestroyWindow(Window);
+ exit(0);
+ }
+}
+
+
+
+/* new window size or exposure */
+static void reshape( int width, int height )
+{
+ glViewport(0, 0, (GLint)width, (GLint)height);
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ /* glOrtho( -3.0, 3.0, -3.0, 3.0, -10.0, 10.0 );*/
+ glFrustum( -2.0, 2.0, -2.0, 2.0, 6.0, 20.0 );
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslatef( 0.0, 0.0, -8.0 );
+}
+
+
+static void init( void )
+{
+ static int width=8, height=8;
+ static GLubyte tex1[] = {
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 1, 0, 0, 0,
+ 0, 0, 0, 1, 1, 0, 0, 0,
+ 0, 0, 0, 0, 1, 0, 0, 0,
+ 0, 0, 0, 0, 1, 0, 0, 0,
+ 0, 0, 0, 0, 1, 0, 0, 0,
+ 0, 0, 0, 1, 1, 1, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0 };
+
+ static GLubyte tex2[] = {
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 2, 2, 0, 0, 0,
+ 0, 0, 2, 0, 0, 2, 0, 0,
+ 0, 0, 0, 0, 0, 2, 0, 0,
+ 0, 0, 0, 0, 2, 0, 0, 0,
+ 0, 0, 0, 2, 0, 0, 0, 0,
+ 0, 0, 2, 2, 2, 2, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0 };
+
+ GLubyte tex[64][3];
+ GLint i, j;
+
+
+ glDisable( GL_DITHER );
+
+ /* Setup texturing */
+ glEnable( GL_TEXTURE_2D );
+ glTexEnvi( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL );
+ glHint( GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST );
+
+
+ /* generate texture object IDs */
+ if (UseObj) {
+#ifdef TEXTURE_OBJECT
+ glGenTextures( 2, TexObj );
+#endif
+ }
+ else {
+ TexObj[0] = glGenLists(2);
+ TexObj[1] = TexObj[0]+1;
+ }
+
+ /* setup first texture object */
+ if (UseObj) {
+#ifdef TEXTURE_OBJECT
+ glBindTexture( GL_TEXTURE_2D, TexObj[0] );
+ assert(glIsTexture(TexObj[0]));
+#endif
+ }
+ else {
+ glNewList( TexObj[0], GL_COMPILE );
+ }
+ /* red on white */
+ for (i=0;i<height;i++) {
+ for (j=0;j<width;j++) {
+ int p = i*width+j;
+ if (tex1[(height-i-1)*width+j]) {
+ tex[p][0] = 255; tex[p][1] = 0; tex[p][2] = 0;
+ }
+ else {
+ tex[p][0] = 255; tex[p][1] = 255; tex[p][2] = 255;
+ }
+ }
+ }
+
+ glTexImage2D( GL_TEXTURE_2D, 0, 3, width, height, 0,
+ GL_RGB, GL_UNSIGNED_BYTE, tex );
+ glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
+ glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
+ glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
+ glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
+ if (!UseObj) {
+ glEndList();
+ }
+ /* end of texture object */
+
+ /* setup second texture object */
+ if (UseObj) {
+#ifdef TEXTURE_OBJECT
+ glBindTexture( GL_TEXTURE_2D, TexObj[1] );
+ assert(glIsTexture(TexObj[1]));
+#endif
+ assert(!glIsTexture(TexObj[1] + 999));
+ }
+ else {
+ glNewList( TexObj[1], GL_COMPILE );
+ }
+ /* green on blue */
+ for (i=0;i<height;i++) {
+ for (j=0;j<width;j++) {
+ int p = i*width+j;
+ if (tex2[(height-i-1)*width+j]) {
+ tex[p][0] = 0; tex[p][1] = 255; tex[p][2] = 0;
+ }
+ else {
+ tex[p][0] = 0; tex[p][1] = 0; tex[p][2] = 255;
+ }
+ }
+ }
+ glTexImage2D( GL_TEXTURE_2D, 0, 3, width, height, 0,
+ GL_RGB, GL_UNSIGNED_BYTE, tex );
+ glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
+ glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
+ glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
+ glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
+ if (!UseObj) {
+ glEndList();
+ }
+ /* end texture object */
+
+}
+
+
+
+int main( int argc, char *argv[] )
+{
+ glutInit(&argc, argv);
+ glutInitWindowPosition(0, 0);
+ glutInitWindowSize(300, 300);
+ glutInitDisplayMode( GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE );
+
+ Window = glutCreateWindow("Texture Objects");
+ if (!Window) {
+ exit(1);
+ }
+
+ /* check that renderer has the GL_EXT_texture_object extension
+ * or supports OpenGL 1.1
+ */
+#ifdef TEXTURE_OBJECT
+ {
+ char *exten = (char *) glGetString( GL_EXTENSIONS );
+ char *version = (char *) glGetString( GL_VERSION );
+ if ( strstr( exten, "GL_EXT_texture_object" )
+ || strncmp( version, "1.1", 3 )==0
+ || strncmp( version, "1.2", 3 )==0 ) {
+ UseObj = GL_TRUE;
+ }
+ }
+#endif
+
+ init();
+
+ glutReshapeFunc( reshape );
+ glutKeyboardFunc( key );
+ glutIdleFunc( idle );
+ glutDisplayFunc( draw );
+ glutMainLoop();
+ return 0;
+}
diff --git a/progs/tests/vparray.c b/progs/tests/vparray.c
index 9c2fad97d9..af9b62d33e 100644
--- a/progs/tests/vparray.c
+++ b/progs/tests/vparray.c
@@ -280,9 +280,9 @@ int main(int argc, char **argv)
glutInitWindowPosition(0, 0);
glutInitWindowSize(400, 400);
if (glutCreateWindow("Isosurface") <= 0) {
- glewInit();
exit(0);
}
+ glewInit();
glutReshapeFunc(Reshape);
glutKeyboardFunc(Key);
glutSpecialFunc(SpecialKey);
diff --git a/progs/tests/vptest1.c b/progs/tests/vptest1.c
index 5162919292..6e32b03346 100644
--- a/progs/tests/vptest1.c
+++ b/progs/tests/vptest1.c
@@ -128,7 +128,7 @@ static void Init( void )
glLoadProgramNV(GL_VERTEX_PROGRAM_NV, 1,
strlen(prog1),
(const GLubyte *) prog1);
- assert(!glIsProgramNV(1));
+ assert(glIsProgramNV(1));
glLoadProgramNV(GL_VERTEX_PROGRAM_NV, 2,
strlen(prog2),
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-16 20:00:30 +0000