diff options
author | Keith Whitwell <keith@tungstengraphics.com> | 2008-09-11 16:05:15 +0100 |
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committer | Keith Whitwell <keith@tungstengraphics.com> | 2008-09-11 16:05:15 +0100 |
commit | 0397b2bb41b0f337af2949a15bcd7d0e7e8a7dc1 (patch) | |
tree | 732c93d74ed806942a13bf15575a61aa4f001253 /progs/tests/mipmap_view.c | |
parent | 80af50b35b5a4e8890e15b28940576f8a1ac1476 (diff) | |
parent | e6887a5752774c18cf527477fdd3e57e4893ff3b (diff) |
Merge branch 'gallium-0.1' into gallium-0.2
A first attempt at moving gallium onto a branch directly off master...
It will be interesting to see how much work this takes to get running.
Have resolved the conflicts semi-arbitarily, not compiled or tested.
Conflicts:
.gitignore
Makefile
configs/config.mgw
configs/darwin
configs/darwin-x86ppc
configs/default
configs/freebsd-dri
configs/linux-dri
configs/linux-dri-xcb
configs/linux-fbdev
configs/linux-static
configs/linux-x86-64-static
configs/linux-x86-static
doxygen/Makefile
include/GL/gl.h
progs/demos/Makefile
progs/demos/descrip.mms
progs/demos/texenv.c
progs/egl/.gitignore
progs/egl/Makefile
progs/glsl/.gitignore
progs/glsl/Makefile
progs/glsl/convolutions.c
progs/samples/Makefile.mgw
progs/tests/.gitignore
progs/trivial/.gitignore
progs/trivial/point-param.c
progs/trivial/tri.c
progs/xdemos/.gitignore
progs/xdemos/glthreads.c
src/egl/drivers/demo/Makefile
src/egl/drivers/dri/Makefile
src/egl/main/Makefile
src/glu/Makefile
src/glu/sgi/Makefile
src/glu/sgi/Makefile.mgw
src/glut/glx/Makefile.mgw
src/glut/os2/WarpWin.cpp
src/glut/os2/glut_cindex.cpp
src/glut/os2/glut_gamemode.cpp
src/glut/os2/glut_win.cpp
src/glut/os2/glut_winmisc.cpp
src/glut/os2/os2_glx.cpp
src/glut/os2/os2_menu.cpp
src/glut/os2/os2_winproc.cpp
src/glw/Makefile
src/glx/x11/dri_glx.c
src/glx/x11/glxext.c
src/mesa/Makefile
src/mesa/Makefile.mgw
src/mesa/descrip.mms
src/mesa/drivers/beos/Makefile
src/mesa/drivers/common/descrip.mms
src/mesa/drivers/common/driverfuncs.c
src/mesa/drivers/directfb/Makefile
src/mesa/drivers/dri/Makefile.template
src/mesa/drivers/dri/common/dri_bufmgr.c
src/mesa/drivers/dri/common/dri_bufmgr.h
src/mesa/drivers/dri/common/dri_util.c
src/mesa/drivers/dri/common/extension_helper.h
src/mesa/drivers/dri/common/mmio.h
src/mesa/drivers/dri/common/utils.c
src/mesa/drivers/dri/common/utils.h
src/mesa/drivers/dri/glcore/Makefile
src/mesa/drivers/dri/i810/i810screen.c
src/mesa/drivers/dri/i915/intel_ioctl.c
src/mesa/drivers/dri/i915/intel_ioctl.h
src/mesa/drivers/dri/i915/intel_screen.c
src/mesa/drivers/dri/i915/server/i830_common.h
src/mesa/drivers/dri/i915/server/i830_dri.h
src/mesa/drivers/dri/i965/intel_screen.c
src/mesa/drivers/dri/i965/server/i830_common.h
src/mesa/drivers/dri/i965/server/i830_dri.h
src/mesa/drivers/dri/mach64/mach64_screen.c
src/mesa/drivers/dri/nouveau/nouveau_context.h
src/mesa/drivers/dri/nouveau/nouveau_fifo.c
src/mesa/drivers/dri/nouveau/nouveau_fifo.h
src/mesa/drivers/dri/nouveau/nouveau_screen.c
src/mesa/drivers/dri/nouveau/nouveau_screen.h
src/mesa/drivers/dri/r128/r128_tex.h
src/mesa/drivers/dri/savage/savageioctl.h
src/mesa/drivers/fbdev/Makefile
src/mesa/drivers/osmesa/Makefile
src/mesa/drivers/osmesa/descrip.mms
src/mesa/drivers/x11/Makefile
src/mesa/drivers/x11/descrip.mms
src/mesa/drivers/x11/xm_dd.c
src/mesa/glapi/glapi.c
src/mesa/glapi/glthread.c
src/mesa/main/api_validate.c
src/mesa/main/attrib.c
src/mesa/main/bufferobj.c
src/mesa/main/bufferobj.h
src/mesa/main/buffers.c
src/mesa/main/config.h
src/mesa/main/context.c
src/mesa/main/descrip.mms
src/mesa/main/drawpix.c
src/mesa/main/enums.c
src/mesa/main/fbobject.c
src/mesa/main/glheader.h
src/mesa/main/imports.c
src/mesa/main/mipmap.c
src/mesa/main/mm.c
src/mesa/main/mm.h
src/mesa/main/mtypes.h
src/mesa/main/points.c
src/mesa/main/sources
src/mesa/main/state.c
src/mesa/main/texcompress_fxt1.c
src/mesa/main/texenvprogram.c
src/mesa/main/texobj.c
src/mesa/main/texstate.c
src/mesa/main/texstore.c
src/mesa/math/descrip.mms
src/mesa/shader/arbprogram.c
src/mesa/shader/descrip.mms
src/mesa/shader/prog_execute.c
src/mesa/shader/prog_statevars.c
src/mesa/shader/prog_statevars.h
src/mesa/shader/prog_uniform.c
src/mesa/shader/program.c
src/mesa/shader/program.h
src/mesa/shader/shader_api.c
src/mesa/shader/slang/descrip.mms
src/mesa/shader/slang/library/slang_vertex_builtin_gc.h
src/mesa/sources
src/mesa/swrast/descrip.mms
src/mesa/swrast/s_drawpix.c
src/mesa/swrast/s_fragprog.c
src/mesa/swrast/s_readpix.c
src/mesa/swrast/s_span.c
src/mesa/swrast_setup/descrip.mms
src/mesa/tnl/descrip.mms
src/mesa/tnl/t_context.h
src/mesa/tnl/t_vp_build.c
src/mesa/tnl/tnl.h
src/mesa/vbo/descrip.mms
src/mesa/vbo/vbo_context.c
src/mesa/vbo/vbo_exec_array.c
src/mesa/x86-64/xform4.S
src/mesa/x86/rtasm/x86sse.c
src/mesa/x86/rtasm/x86sse.h
windows/VC6/progs/glut/glut.dsp
windows/VC7/mesa/gdi/gdi.vcproj
windows/VC7/mesa/glu/glu.vcproj
windows/VC7/mesa/mesa.sln
windows/VC7/mesa/mesa/mesa.vcproj
windows/VC7/mesa/osmesa/osmesa.vcproj
windows/VC7/progs/glut/glut.vcproj
windows/VC8/mesa/gdi/gdi.vcproj
windows/VC8/mesa/glu/glu.vcproj
windows/VC8/mesa/mesa.sln
windows/VC8/mesa/mesa/mesa.vcproj
windows/VC8/progs/glut/glut.vcproj
Diffstat (limited to 'progs/tests/mipmap_view.c')
-rw-r--r-- | progs/tests/mipmap_view.c | 248 |
1 files changed, 248 insertions, 0 deletions
diff --git a/progs/tests/mipmap_view.c b/progs/tests/mipmap_view.c new file mode 100644 index 0000000000..117e201718 --- /dev/null +++ b/progs/tests/mipmap_view.c @@ -0,0 +1,248 @@ +/* + * Test mipmap generation and lod bias. + * + * Brian Paul + * 17 March 2008 + */ + + +#include <assert.h> +#include <stdlib.h> +#include <stdio.h> +#include <math.h> +#include <GL/glut.h> +#include <GL/glext.h> + +#include "readtex.h" + +#define TEXTURE_FILE "../images/arch.rgb" + +static int TexWidth = 256, TexHeight = 256; +static int WinWidth = 1044, WinHeight = 900; +static GLfloat Bias = 0.0; +static GLboolean ScaleQuads = GL_FALSE; + + +static void +PrintString(const char *s) +{ + while (*s) { + glutBitmapCharacter(GLUT_BITMAP_8_BY_13, (int) *s); + s++; + } +} + + +static void +Display(void) +{ + int x, y, bias; + char str[100]; + int texWidth = TexWidth, texHeight = TexHeight; + + glClear(GL_COLOR_BUFFER_BIT); + + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(0, WinWidth, 0, WinHeight, -1, 1); + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + + glColor3f(1,1,1); + + y = WinHeight - 300; + x = 4; + + for (bias = -1; bias < 11; bias++) { + + if (ScaleQuads) { + if (bias > 0) { + if (texWidth == 1 && texHeight == 1) + break; + texWidth = TexWidth >> bias; + texHeight = TexHeight >> bias; + if (texWidth < 1) + texWidth = 1; + if (texHeight < 1) + texHeight = 1; + } + glTexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT, GL_TEXTURE_LOD_BIAS_EXT, 0.0); + } + else { + glTexEnvf(GL_TEXTURE_FILTER_CONTROL_EXT, GL_TEXTURE_LOD_BIAS_EXT, bias); + } + + glRasterPos2f(x, y + TexHeight + 5); + if (ScaleQuads) + sprintf(str, "Texture Level %d: %d x %d", + (bias < 0 ? 0 : bias), + texWidth, texHeight); + else + sprintf(str, "Texture LOD Bias = %d", bias); + PrintString(str); + + glPushMatrix(); + glTranslatef(x, y, 0); + + glEnable(GL_TEXTURE_2D); + + glBegin(GL_POLYGON); + glTexCoord2f(0, 0); glVertex2f(0, 0); + glTexCoord2f(1, 0); glVertex2f(texWidth, 0); + glTexCoord2f(1, 1); glVertex2f(texWidth, texHeight); + glTexCoord2f(0, 1); glVertex2f(0, texHeight); + glEnd(); + + glPopMatrix(); + + glDisable(GL_TEXTURE_2D); + + x += TexWidth + 4; + if (x >= WinWidth) { + x = 4; + y -= 300; + } + } + + glutSwapBuffers(); +} + + +static void +Reshape(int width, int height) +{ + WinWidth = width; + WinHeight = height; + glViewport(0, 0, width, height); +} + + +static void +Key(unsigned char key, int x, int y) +{ + (void) x; + (void) y; + switch (key) { + case 'b': + Bias -= 10; + break; + case 'B': + Bias += 10; + break; + case '0': + case '1': + case '2': + case '3': + case '4': + case '5': + case '6': + case '7': + case '8': + case '9': + Bias = 100.0 * (key - '0'); + break; + case 's': + ScaleQuads = !ScaleQuads; + break; + case 27: + exit(0); + break; + } + glutPostRedisplay(); +} + + +static void +Init(void) +{ + GLfloat maxBias; + + if (!glutExtensionSupported("GL_EXT_texture_lod_bias")) { + printf("Sorry, GL_EXT_texture_lod_bias not supported by this renderer.\n"); + exit(1); + } + + if (!glutExtensionSupported("GL_SGIS_generate_mipmap")) { + printf("Sorry, GL_SGIS_generate_mipmap not supported by this renderer.\n"); + exit(1); + } + + 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); + } + } + + + /* 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); + + printf("GL_RENDERER: %s\n", (char*) glGetString(GL_RENDERER)); + printf("LOD bias range: [%g, %g]\n", -maxBias, maxBias); + + printf("Press 's' to toggle quad scaling\n"); +} + + +int +main(int argc, char *argv[]) +{ + glutInit(&argc, argv); + glutInitWindowPosition(0, 0); + glutInitWindowSize(WinWidth, WinHeight); + glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE); + glutCreateWindow(argv[0]); + glutReshapeFunc(Reshape); + glutKeyboardFunc(Key); + glutDisplayFunc(Display); + Init(); + glutMainLoop(); + return 0; +} |