summaryrefslogtreecommitdiff
path: root/progs
diff options
context:
space:
mode:
Diffstat (limited to 'progs')
-rw-r--r--progs/SConscript1
-rw-r--r--progs/demos/dissolve.c137
-rw-r--r--progs/egl/Makefile6
-rw-r--r--progs/gallium/python/samples/tri.py20
-rw-r--r--progs/gallium/raw/SConscript17
-rw-r--r--progs/gallium/raw/clear.c95
-rw-r--r--progs/gallium/trivial/.gitignore3
-rw-r--r--progs/gallium/trivial/Makefile44
-rw-r--r--progs/gallium/trivial/quad-tex.c346
-rw-r--r--progs/gallium/trivial/tri.c278
-rw-r--r--progs/glsl/Makefile4
-rw-r--r--progs/glsl/SConscript2
-rw-r--r--progs/glsl/fsraytrace.c412
-rw-r--r--progs/glsl/vsraytrace.c401
-rw-r--r--progs/samples/copy.c27
-rw-r--r--progs/samples/loadppm.c6
-rw-r--r--progs/tests/Makefile1
-rw-r--r--progs/tests/SConscript2
-rw-r--r--progs/tests/cva_huge.c232
-rw-r--r--progs/tests/stencil_twoside.c85
-rw-r--r--progs/trivial/tri-stencil.c3
-rw-r--r--progs/xdemos/Makefile2
22 files changed, 2070 insertions, 54 deletions
diff --git a/progs/SConscript b/progs/SConscript
index aa6640cf7a..a90e13b4cb 100644
--- a/progs/SConscript
+++ b/progs/SConscript
@@ -56,4 +56,5 @@ SConscript([
'wgl/SConscript',
'perf/SConscript',
'gallium/unit/SConscript',
+# 'gallium/raw/SConscript',
])
diff --git a/progs/demos/dissolve.c b/progs/demos/dissolve.c
index 0b8df1bb66..8ab5242d91 100644
--- a/progs/demos/dissolve.c
+++ b/progs/demos/dissolve.c
@@ -1,5 +1,5 @@
/**
- * Dissolve between two images using randomized stencil buffer
+ * Dissolve between two images using randomized/patterned stencil buffer
* and varying stencil ref.
*
* Brian Paul
@@ -9,6 +9,7 @@
#include <stdio.h>
#include <stdlib.h>
+#include <string.h>
#include <math.h>
#include <GL/glut.h>
#include "readtex.h"
@@ -28,6 +29,8 @@ static GLfloat ScaleX[2], ScaleY[2];
static GLubyte StencilRef = 0;
+static int Mode = 0;
+
static void
Idle(void)
@@ -38,13 +41,114 @@ Idle(void)
static void
-RandomizeStencilBuffer(void)
+FillRandomPixels(GLubyte *b)
{
- GLubyte *b = malloc(WinWidth * WinHeight);
int i;
for (i = 0; i < WinWidth * WinHeight; i++) {
b[i] = rand() & 0xff;
}
+}
+
+
+static void
+FillRandomRects(GLubyte *b)
+{
+ int i;
+
+ memset(b, 0, WinWidth * WinHeight);
+
+ for (i = 0; i < 256; i++) {
+ int x = rand() % WinWidth;
+ int y = rand() % WinHeight;
+ int w = rand() % 60;
+ int h = rand() % 60;
+ int ix, iy;
+
+ if (x + w > WinWidth)
+ w = WinWidth - x;
+ if (y + h > WinHeight)
+ h = WinHeight - y;
+
+ for (iy = 0; iy < h; iy++) {
+ for (ix = 0; ix < w; ix++) {
+ int p = (y + iy) * WinWidth + x + ix;
+ b[p] = i;
+ }
+ }
+ }
+}
+
+
+static void
+FillWipe(GLubyte *b)
+{
+ int iy, ix;
+
+ memset(b, 0, WinWidth * WinHeight);
+
+ for (iy = 0; iy < WinHeight; iy++) {
+ for (ix = 0; ix < WinWidth; ix++) {
+ int p = iy * WinWidth + ix;
+ b[p] = 2 * ix + iy / 2;
+ }
+ }
+}
+
+
+static void
+FillMoire(GLubyte *b)
+{
+ int iy, ix;
+
+ memset(b, 0, WinWidth * WinHeight);
+
+ for (iy = 0; iy < WinHeight; iy++) {
+ for (ix = 0; ix < WinWidth; ix++) {
+ int p = iy * WinWidth + ix;
+ b[p] = (ix / 2) * (ix / 2) - (iy / 2) * (iy / 2);
+ }
+ }
+}
+
+
+static void
+FillWaves(GLubyte *b)
+{
+ int iy, ix;
+
+ memset(b, 0, WinWidth * WinHeight);
+
+ for (iy = 0; iy < WinHeight; iy++) {
+ for (ix = 0; ix < WinWidth; ix++) {
+ int p = iy * WinWidth + ix;
+ float x = 8.0 * 3.1415 * ix / (float) WinWidth;
+ b[p] = (int) (25.0 * sin(x) ) - iy*2;
+ }
+ }
+}
+
+
+typedef void (*FillFunc)(GLubyte *b);
+
+
+static FillFunc Funcs[] = {
+ FillRandomPixels,
+ FillRandomRects,
+ FillWipe,
+ FillMoire,
+ FillWaves
+};
+
+#define NUM_MODES (sizeof(Funcs) / sizeof(Funcs[0]))
+
+
+
+static void
+InitStencilBuffer(void)
+{
+ GLubyte *b = malloc(WinWidth * WinHeight);
+
+ Funcs[Mode](b);
glStencilFunc(GL_ALWAYS, 0, ~0);
glPixelZoom(1.0, 1.0);
@@ -54,7 +158,6 @@ RandomizeStencilBuffer(void)
}
-
static void
Draw(void)
{
@@ -85,7 +188,7 @@ Reshape(int width, int height)
glLoadIdentity();
glTranslatef(0.0, 0.0, -15.0);
- RandomizeStencilBuffer();
+ InitStencilBuffer();
ScaleX[0] = (float) width / ImgWidth[0];
ScaleY[0] = (float) height / ImgHeight[0];
@@ -102,12 +205,26 @@ Key(unsigned char key, int x, int y)
(void) y;
switch (key) {
case 'a':
+ case ' ':
Anim = !Anim;
if (Anim)
glutIdleFunc(Idle);
else
glutIdleFunc(NULL);
break;
+ case 'i':
+ InitStencilBuffer();
+ break;
+ case '-':
+ StencilRef--;
+ break;
+ case '+':
+ StencilRef++;
+ break;
+ case 'm':
+ Mode = (Mode + 1) % NUM_MODES;
+ InitStencilBuffer();
+ break;
case 27:
glutDestroyWindow(Win);
exit(0);
@@ -143,8 +260,8 @@ Init(void)
int
main(int argc, char *argv[])
{
- glutInit(&argc, argv);
glutInitWindowSize(WinWidth, WinHeight);
+ glutInit(&argc, argv);
glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH | GLUT_STENCIL);
Win = glutCreateWindow(argv[0]);
glutReshapeFunc(Reshape);
@@ -153,6 +270,14 @@ main(int argc, char *argv[])
if (Anim)
glutIdleFunc(Idle);
Init();
+
+ printf("Keys:\n");
+ printf(" a/SPACE toggle animation\n");
+ printf(" +/- single step\n");
+ printf(" i re-init pattern\n");
+ printf(" m change pattern/dissolve mode\n");
+ printf(" ESC exit\n");
+
glutMainLoop();
return 0;
}
diff --git a/progs/egl/Makefile b/progs/egl/Makefile
index 5f51104fed..890240f9a3 100644
--- a/progs/egl/Makefile
+++ b/progs/egl/Makefile
@@ -57,13 +57,13 @@ peglgears: peglgears.o $(HEADERS) $(LIB_DEP)
$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< $(LIBS) $(LIBDRM_LIB) -lm
xeglgears: xeglgears.o $(HEADERS) $(LIB_DEP)
- $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< $(LIBS) -lm $(X_LIBS)
+ $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< $(LIBS) -lm $(X11_LIBS)
xeglthreads: xeglthreads.o $(HEADERS) $(LIB_DEP)
- $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< $(LIBS) -lm $(X_LIBS)
+ $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< $(LIBS) -lpthread -lm $(X11_LIBS)
xegl_tri: xegl_tri.o $(HEADERS) $(LIB_DEP)
- $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< $(LIBS) -lm $(X_LIBS)
+ $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $< $(LIBS) -lm $(X11_LIBS)
clean:
-rm -f *.o *~
diff --git a/progs/gallium/python/samples/tri.py b/progs/gallium/python/samples/tri.py
index d7fbdb10ac..9f6d787dcb 100644
--- a/progs/gallium/python/samples/tri.py
+++ b/progs/gallium/python/samples/tri.py
@@ -30,19 +30,19 @@
from gallium import *
-def make_image(surface):
- data = surface.get_tile_rgba8(0, 0, surface.width, surface.height)
+def make_image(ctx, surface):
+ data = ctx.surface_read_rgba8(surface, 0, 0, surface.width, surface.height)
import Image
outimage = Image.fromstring('RGBA', (surface.width, surface.height), data, "raw", 'RGBA', 0, 1)
return outimage
-def save_image(filename, surface):
- outimage = make_image(surface)
+def save_image(ctx, surface, filename):
+ outimage = make_image(ctx, surface)
outimage.save(filename, "PNG")
-def show_image(surface):
- outimage = make_image(surface)
+def show_image(ctx, surface):
+ outimage = make_image(ctx, surface)
import Tkinter as tk
from PIL import Image, ImageTk
@@ -216,10 +216,10 @@ def test(dev):
ctx.flush()
- show_image(cbuf)
- #show_image(zbuf)
- #save_image('cbuf.png', cbuf)
- #save_image('zbuf.png', zbuf)
+ show_image(ctx, cbuf)
+ show_image(ctx, zbuf)
+ save_image(ctx, cbuf, 'cbuf.png')
+ save_image(ctx, zbuf, 'zbuf.png')
diff --git a/progs/gallium/raw/SConscript b/progs/gallium/raw/SConscript
new file mode 100644
index 0000000000..073b97951e
--- /dev/null
+++ b/progs/gallium/raw/SConscript
@@ -0,0 +1,17 @@
+Import('*')
+
+env = env.Clone()
+
+env.Prepend(LIBPATH = [graw.dir])
+env.Prepend(LIBS = [graw.name])
+
+progs = [
+ 'clear'
+]
+
+for prog in progs:
+ env.Program(
+ target = prog,
+ source = prog + '.c',
+ )
+
diff --git a/progs/gallium/raw/clear.c b/progs/gallium/raw/clear.c
new file mode 100644
index 0000000000..5ef5254edc
--- /dev/null
+++ b/progs/gallium/raw/clear.c
@@ -0,0 +1,95 @@
+/* Display a cleared blue window. This demo has no dependencies on
+ * any utility code, just the graw interface and gallium.
+ */
+
+#include "state_tracker/graw.h"
+#include "pipe/p_screen.h"
+#include "pipe/p_context.h"
+#include "pipe/p_state.h"
+#include "pipe/p_defines.h"
+#include <unistd.h> /* for sleep() */
+
+#include "util/u_debug.h" /* debug_dump_surface_bmp() */
+
+enum pipe_format formats[] = {
+ PIPE_FORMAT_R8G8B8A8_UNORM,
+ PIPE_FORMAT_B8G8R8A8_UNORM,
+ PIPE_FORMAT_NONE
+};
+
+static const int WIDTH = 300;
+static const int HEIGHT = 300;
+
+int main( int argc, char *argv[] )
+{
+ struct pipe_screen *screen;
+ struct pipe_context *pipe;
+ struct pipe_surface *surf;
+ struct pipe_framebuffer_state fb;
+ struct pipe_texture *tex, templat;
+ void *window = NULL;
+ float clear_color[4] = {1,0,1,1};
+ int i;
+
+ screen = graw_init();
+ if (screen == NULL)
+ exit(1);
+
+ for (i = 0;
+ window == NULL && formats[i] != PIPE_FORMAT_NONE;
+ i++) {
+
+ window = graw_create_window(0,0,300,300, formats[i]);
+ }
+
+ if (window == NULL)
+ exit(2);
+
+ pipe = screen->context_create(screen, NULL);
+ if (pipe == NULL)
+ exit(3);
+
+ templat.target = PIPE_TEXTURE_2D;
+ templat.format = formats[i];
+ templat.width0 = WIDTH;
+ templat.height0 = HEIGHT;
+ templat.depth0 = 1;
+ templat.last_level = 0;
+ templat.nr_samples = 1;
+ templat.tex_usage = (PIPE_TEXTURE_USAGE_RENDER_TARGET |
+ PIPE_TEXTURE_USAGE_DISPLAY_TARGET);
+
+ tex = screen->texture_create(screen,
+ &templat);
+ if (tex == NULL)
+ exit(4);
+
+ surf = screen->get_tex_surface(screen, tex, 0, 0, 0,
+ PIPE_TEXTURE_USAGE_RENDER_TARGET |
+ PIPE_TEXTURE_USAGE_DISPLAY_TARGET);
+ if (surf == NULL)
+ exit(5);
+
+ memset(&fb, 0, sizeof fb);
+ fb.nr_cbufs = 1;
+ fb.width = WIDTH;
+ fb.height = HEIGHT;
+ fb.cbufs[0] = surf;
+
+ pipe->set_framebuffer_state(pipe, &fb);
+ pipe->clear(pipe, PIPE_CLEAR_COLOR, clear_color, 0, 0);
+ pipe->flush(pipe, PIPE_FLUSH_RENDER_CACHE, NULL);
+
+ /* At the moment, libgraw includes/makes available all the symbols
+ * from gallium/auxiliary, including these debug helpers. Will
+ * eventually want to bless some of these paths, and lock the
+ * others down so they aren't accessible from test programs.
+ */
+ if (0)
+ debug_dump_surface_bmp(pipe, "result.bmp", surf);
+
+ screen->flush_frontbuffer(screen, surf, window);
+
+ sleep(100);
+ return 0;
+}
diff --git a/progs/gallium/trivial/.gitignore b/progs/gallium/trivial/.gitignore
new file mode 100644
index 0000000000..af6cdedbeb
--- /dev/null
+++ b/progs/gallium/trivial/.gitignore
@@ -0,0 +1,3 @@
+tri
+quad-tex
+result.bmp
diff --git a/progs/gallium/trivial/Makefile b/progs/gallium/trivial/Makefile
new file mode 100644
index 0000000000..2b8af1ac06
--- /dev/null
+++ b/progs/gallium/trivial/Makefile
@@ -0,0 +1,44 @@
+# progs/gallium/simple/Makefile
+
+TOP = ../../..
+include $(TOP)/configs/current
+
+INCLUDES = \
+ -I. \
+ -I$(TOP)/src/gallium/include \
+ -I$(TOP)/src/gallium/auxiliary \
+ -I$(TOP)/src/gallium/drivers \
+ -I$(TOP)/src/gallium/winsys \
+ $(PROG_INCLUDES)
+
+LINKS = \
+ $(TOP)/src/gallium/drivers/trace/libtrace.a \
+ $(TOP)/src/gallium/winsys/sw/null/libws_null.a \
+ $(TOP)/src/gallium/drivers/softpipe/libsoftpipe.a \
+ $(GALLIUM_AUXILIARIES) \
+ $(PROG_LINKS)
+
+SOURCES = \
+ tri.c \
+ quad-tex.c
+
+OBJECTS = $(SOURCES:.c=.o)
+
+PROGS = $(OBJECTS:.o=)
+
+##### TARGETS #####
+
+default: $(PROGS)
+
+clean:
+ -rm -f $(PROGS)
+ -rm -f *.o
+ -rm -f result.bmp
+
+##### RULES #####
+
+$(OBJECTS): %.o: %.c
+ $(CC) -c $(INCLUDES) $(CFLAGS) $(DEFINES) $(PROG_DEFINES) $< -o $@
+
+$(PROGS): %: %.o
+ $(CC) $(LDFLAGS) $< $(LINKS) -lm -lpthread -o $@
diff --git a/progs/gallium/trivial/quad-tex.c b/progs/gallium/trivial/quad-tex.c
new file mode 100644
index 0000000000..553f5582e7
--- /dev/null
+++ b/progs/gallium/trivial/quad-tex.c
@@ -0,0 +1,346 @@
+/**************************************************************************
+ *
+ * Copyright © 2010 Jakob Bornecrantz
+ *
+ * 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 (including the next
+ * paragraph) 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
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ **************************************************************************/
+
+
+#define USE_TRACE 0
+#define WIDTH 300
+#define HEIGHT 300
+#define NEAR 30
+#define FAR 1000
+#define FLIP 0
+
+/* pipe_*_state structs */
+#include "pipe/p_state.h"
+/* pipe_context */
+#include "pipe/p_context.h"
+/* pipe_screen */
+#include "pipe/p_screen.h"
+/* PIPE_* */
+#include "pipe/p_defines.h"
+/* TGSI_SEMANTIC_{POSITION|GENERIC} */
+#include "pipe/p_shader_tokens.h"
+/* pipe_buffer_* helpers */
+#include "util/u_inlines.h"
+
+/* constant state object helper */
+#include "cso_cache/cso_context.h"
+
+/* u_sampler_view_default_template */
+#include "util/u_sampler.h"
+/* debug_dump_surface_bmp */
+#include "util/u_debug.h"
+/* util_draw_vertex_buffer helper */
+#include "util/u_draw_quad.h"
+/* FREE & CALLOC_STRUCT */
+#include "util/u_memory.h"
+/* util_make_[fragment|vertex]_passthrough_shader */
+#include "util/u_simple_shaders.h"
+
+/* softpipe software driver */
+#include "softpipe/sp_public.h"
+
+/* null software winsys */
+#include "sw/null/null_sw_winsys.h"
+
+/* traceing support see src/gallium/drivers/trace/README for more info. */
+#if USE_TRACE
+#include "trace/tr_screen.h"
+#include "trace/tr_context.h"
+#endif
+
+struct program
+{
+ struct pipe_screen *screen;
+ struct pipe_context *pipe;
+ struct cso_context *cso;
+
+ struct pipe_blend_state blend;
+ struct pipe_depth_stencil_alpha_state depthstencil;
+ struct pipe_rasterizer_state rasterizer;
+ struct pipe_sampler_state sampler;
+ struct pipe_viewport_state viewport;
+ struct pipe_framebuffer_state framebuffer;
+ struct pipe_vertex_element velem[2];
+
+ void *vs;
+ void *fs;
+
+ float clear_color[4];
+
+ struct pipe_buffer *vbuf;
+ struct pipe_texture *target;
+ struct pipe_texture *tex;
+ struct pipe_sampler_view *view;
+};
+
+static void init_prog(struct program *p)
+{
+ /* create the software rasterizer */
+ p->screen = softpipe_create_screen(null_sw_create());
+#if USE_TRACE
+ p->screen = trace_screen_create(p->screen);
+#endif
+ p->pipe = p->screen->context_create(p->screen, NULL);
+ p->cso = cso_create_context(p->pipe);
+
+ /* set clear color */
+ p->clear_color[0] = 0.3;
+ p->clear_color[1] = 0.1;
+ p->clear_color[2] = 0.3;
+ p->clear_color[3] = 1.0;
+
+ /* vertex buffer */
+ {
+ float vertices[4][2][4] = {
+ {
+ { 0.9f, 0.9f, 0.0f, 1.0f },
+ { 1.0f, 1.0f, 0.0f, 1.0f }
+ },
+ {
+ { -0.9f, 0.9f, 0.0f, 1.0f },
+ { 0.0f, 1.0f, 0.0f, 1.0f }
+ },
+ {
+ { -0.9f, -0.9f, 0.0f, 1.0f },
+ { 0.0f, 0.0f, 1.0f, 1.0f }
+ },
+ {
+ { 0.9f, -0.9f, 0.0f, 1.0f },
+ { 1.0f, 0.0f, 1.0f, 1.0f }
+ }
+ };
+
+ p->vbuf = pipe_buffer_create(p->screen, 16, PIPE_BUFFER_USAGE_VERTEX, sizeof(vertices));
+ pipe_buffer_write(p->screen, p->vbuf, 0, sizeof(vertices), vertices);
+ }
+
+ /* render target texture */
+ {
+ struct pipe_texture tmplt;
+ memset(&tmplt, 0, sizeof(tmplt));
+ tmplt.target = PIPE_TEXTURE_2D;
+ tmplt.format = PIPE_FORMAT_B8G8R8A8_UNORM; /* All drivers support this */
+ tmplt.width0 = WIDTH;
+ tmplt.height0 = HEIGHT;
+ tmplt.depth0 = 1;
+ tmplt.last_level = 0;
+ tmplt.tex_usage = PIPE_TEXTURE_USAGE_RENDER_TARGET;
+
+ p->target = p->screen->texture_create(p->screen, &tmplt);
+ }
+
+ /* sampler texture */
+ {
+ uint32_t *ptr;
+ struct pipe_transfer *t;
+ struct pipe_texture t_tmplt;
+ struct pipe_sampler_view v_tmplt;
+
+ memset(&t_tmplt, 0, sizeof(t_tmplt));
+ t_tmplt.target = PIPE_TEXTURE_2D;
+ t_tmplt.format = PIPE_FORMAT_B8G8R8A8_UNORM; /* All drivers support this */
+ t_tmplt.width0 = 2;
+ t_tmplt.height0 = 2;
+ t_tmplt.depth0 = 1;
+ t_tmplt.last_level = 0;
+ t_tmplt.tex_usage = PIPE_TEXTURE_USAGE_RENDER_TARGET;
+
+ p->tex = p->screen->texture_create(p->screen, &t_tmplt);
+
+ t = p->pipe->get_tex_transfer(p->pipe, p->tex,
+ 0, 0, 0, /* face, level, zslice */
+ PIPE_TRANSFER_WRITE,
+ 0, 0, 2, 2); /* x, y, width, height */
+
+ ptr = p->pipe->transfer_map(p->pipe, t);
+ ptr[0] = 0xffff0000;
+ ptr[1] = 0xff0000ff;
+ ptr[2] = 0xff00ff00;
+ ptr[3] = 0xffffff00;
+ p->pipe->transfer_unmap(p->pipe, t);
+
+ p->pipe->tex_transfer_destroy(p->pipe, t);
+
+ u_sampler_view_default_template(&v_tmplt, p->tex, p->tex->format);
+
+ p->view = p->pipe->create_sampler_view(p->pipe, p->tex, &v_tmplt);
+ }
+
+ /* disabled blending/masking */
+ memset(&p->blend, 0, sizeof(p->blend));
+ p->blend.rt[0].colormask = PIPE_MASK_RGBA;
+
+ /* no-op depth/stencil/alpha */
+ memset(&p->depthstencil, 0, sizeof(p->depthstencil));
+
+ /* rasterizer */
+ memset(&p->rasterizer, 0, sizeof(p->rasterizer));
+ p->rasterizer.front_winding = PIPE_WINDING_CW;
+ p->rasterizer.cull_mode = PIPE_WINDING_NONE;
+ p->rasterizer.gl_rasterization_rules = 1;
+
+ /* sampler */
+ memset(&p->sampler, 0, sizeof(p->sampler));
+ p->sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
+ p->sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
+ p->sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
+ p->sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
+ p->sampler.min_img_filter = PIPE_TEX_MIPFILTER_LINEAR;
+ p->sampler.mag_img_filter = PIPE_TEX_MIPFILTER_LINEAR;
+ p->sampler.normalized_coords = 1;
+
+ /* drawing destination */
+ memset(&p->framebuffer, 0, sizeof(p->framebuffer));
+ p->framebuffer.width = WIDTH;
+ p->framebuffer.height = HEIGHT;
+ p->framebuffer.nr_cbufs = 1;
+ p->framebuffer.cbufs[0] = p->screen->get_tex_surface(p->screen, p->target, 0, 0, 0, PIPE_BUFFER_USAGE_GPU_WRITE);
+
+ /* viewport, depth isn't really needed */
+ {
+ float x = 0;
+ float y = 0;
+ float z = FAR;
+ float half_width = (float)WIDTH / 2.0f;
+ float half_height = (float)HEIGHT / 2.0f;
+ float half_depth = ((float)FAR - (float)NEAR) / 2.0f;
+ float scale, bias;
+
+ if (FLIP) {
+ scale = -1.0f;
+ bias = (float)HEIGHT;
+ } else {
+ scale = 1.0f;
+ bias = 0.0f;
+ }
+
+ p->viewport.scale[0] = half_width;
+ p->viewport.scale[1] = half_height * scale;
+ p->viewport.scale[2] = half_depth;
+ p->viewport.scale[3] = 1.0f;
+
+ p->viewport.translate[0] = half_width + x;
+ p->viewport.translate[1] = (half_height + y) * scale + bias;
+ p->viewport.translate[2] = half_depth + z;
+ p->viewport.translate[3] = 0.0f;
+ }
+
+ /* vertex elements state */
+ memset(p->velem, 0, sizeof(p->velem));
+ p->velem[0].src_offset = 0 * 4 * sizeof(float); /* offset 0, first element */
+ p->velem[0].instance_divisor = 0;
+ p->velem[0].vertex_buffer_index = 0;
+ p->velem[0].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
+
+ p->velem[1].src_offset = 1 * 4 * sizeof(float); /* offset 16, second element */
+ p->velem[1].instance_divisor = 0;
+ p->velem[1].vertex_buffer_index = 0;
+ p->velem[1].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
+
+ /* vertex shader */
+ {
+ const uint semantic_names[] = { TGSI_SEMANTIC_POSITION,
+ TGSI_SEMANTIC_GENERIC };
+ const uint semantic_indexes[] = { 0, 0 };
+ p->vs = util_make_vertex_passthrough_shader(p->pipe, 2, semantic_names, semantic_indexes);
+ }
+
+ /* fragment shader */
+ p->fs = util_make_fragment_tex_shader(p->pipe, TGSI_TEXTURE_2D);
+}
+
+static void close_prog(struct program *p)
+{
+ /* unset bound textures as well */
+ cso_set_fragment_sampler_views(p->cso, 0, NULL);
+
+ /* unset all state */
+ cso_release_all(p->cso);
+
+ p->pipe->delete_vs_state(p->pipe, p->vs);
+ p->pipe->delete_fs_state(p->pipe, p->fs);
+
+ pipe_surface_reference(&p->framebuffer.cbufs[0], NULL);
+ pipe_sampler_view_reference(&p->view, NULL);
+ pipe_texture_reference(&p->target, NULL);
+ pipe_texture_reference(&p->tex, NULL);
+ pipe_buffer_reference(&p->vbuf, NULL);
+
+ cso_destroy_context(p->cso);
+ p->pipe->destroy(p->pipe);
+ p->screen->destroy(p->screen);
+
+ FREE(p);
+}
+
+static void draw(struct program *p)
+{
+ /* set the render target */
+ cso_set_framebuffer(p->cso, &p->framebuffer);
+
+ /* clear the render target */
+ p->pipe->clear(p->pipe, PIPE_CLEAR_COLOR, p->clear_color, 0, 0);
+
+ /* set misc state we care about */
+ cso_set_blend(p->cso, &p->blend);
+ cso_set_depth_stencil_alpha(p->cso, &p->depthstencil);
+ cso_set_rasterizer(p->cso, &p->rasterizer);
+ cso_set_viewport(p->cso, &p->viewport);
+
+ /* sampler */
+ cso_single_sampler(p->cso, 0, &p->sampler);
+ cso_single_sampler_done(p->cso);
+
+ /* texture sampler view */
+ cso_set_fragment_sampler_views(p->cso, 1, &p->view);
+
+ /* shaders */
+ cso_set_fragment_shader_handle(p->cso, p->fs);
+ cso_set_vertex_shader_handle(p->cso, p->vs);
+
+ /* vertex element data */
+ cso_set_vertex_elements(p->cso, 2, p->velem);
+
+ util_draw_vertex_buffer(p->pipe,
+ p->vbuf, 0,
+ PIPE_PRIM_QUADS,
+ 4, /* verts */
+ 2); /* attribs/vert */
+
+ p->pipe->flush(p->pipe, PIPE_FLUSH_RENDER_CACHE, NULL);
+
+ debug_dump_surface_bmp(p->pipe, "result.bmp", p->framebuffer.cbufs[0]);
+}
+
+int main(int argc, char** argv)
+{
+ struct program *p = CALLOC_STRUCT(program);
+
+ init_prog(p);
+ draw(p);
+ close_prog(p);
+
+ return 0;
+}
diff --git a/progs/gallium/trivial/tri.c b/progs/gallium/trivial/tri.c
new file mode 100644
index 0000000000..cae1bdb1b1
--- /dev/null
+++ b/progs/gallium/trivial/tri.c
@@ -0,0 +1,278 @@
+/**************************************************************************
+ *
+ * Copyright © 2010 Jakob Bornecrantz
+ *
+ * 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 (including the next
+ * paragraph) 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
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ **************************************************************************/
+
+
+#define USE_TRACE 0
+#define WIDTH 300
+#define HEIGHT 300
+#define NEAR 30
+#define FAR 1000
+#define FLIP 0
+
+/* pipe_*_state structs */
+#include "pipe/p_state.h"
+/* pipe_context */
+#include "pipe/p_context.h"
+/* pipe_screen */
+#include "pipe/p_screen.h"
+/* PIPE_* */
+#include "pipe/p_defines.h"
+/* TGSI_SEMANTIC_{POSITION|GENERIC} */
+#include "pipe/p_shader_tokens.h"
+/* pipe_buffer_* helpers */
+#include "util/u_inlines.h"
+
+/* constant state object helper */
+#include "cso_cache/cso_context.h"
+
+/* debug_dump_surface_bmp */
+#include "util/u_debug.h"
+/* util_draw_vertex_buffer helper */
+#include "util/u_draw_quad.h"
+/* FREE & CALLOC_STRUCT */
+#include "util/u_memory.h"
+/* util_make_[fragment|vertex]_passthrough_shader */
+#include "util/u_simple_shaders.h"
+
+/* softpipe software driver */
+#include "softpipe/sp_public.h"
+
+/* null software winsys */
+#include "sw/null/null_sw_winsys.h"
+
+/* traceing support see src/gallium/drivers/trace/README for more info. */
+#if USE_TRACE
+#include "trace/tr_screen.h"
+#include "trace/tr_context.h"
+#endif
+
+struct program
+{
+ struct pipe_screen *screen;
+ struct pipe_context *pipe;
+ struct cso_context *cso;
+
+ struct pipe_blend_state blend;
+ struct pipe_depth_stencil_alpha_state depthstencil;
+ struct pipe_rasterizer_state rasterizer;
+ struct pipe_viewport_state viewport;
+ struct pipe_framebuffer_state framebuffer;
+ struct pipe_vertex_element velem[2];
+
+ void *vs;
+ void *fs;
+
+ float clear_color[4];
+
+ struct pipe_buffer *vbuf;
+ struct pipe_texture *target;
+};
+
+static void init_prog(struct program *p)
+{
+ /* create the software rasterizer */
+ p->screen = softpipe_create_screen(null_sw_create());
+#if USE_TRACE
+ p->screen = trace_screen_create(p->screen);
+#endif
+ p->pipe = p->screen->context_create(p->screen, NULL);
+ p->cso = cso_create_context(p->pipe);
+
+ /* set clear color */
+ p->clear_color[0] = 0.3;
+ p->clear_color[1] = 0.1;
+ p->clear_color[2] = 0.3;
+ p->clear_color[3] = 1.0;
+
+ /* vertex buffer */
+ {
+ float vertices[4][2][4] = {
+ {
+ { 0.0f, -0.9f, 0.0f, 1.0f },
+ { 1.0f, 0.0f, 0.0f, 1.0f }
+ },
+ {
+ { -0.9f, 0.9f, 0.0f, 1.0f },
+ { 0.0f, 1.0f, 0.0f, 1.0f }
+ },
+ {
+ { 0.9f, 0.9f, 0.0f, 1.0f },
+ { 0.0f, 0.0f, 1.0f, 1.0f }
+ }
+ };
+
+ p->vbuf = pipe_buffer_create(p->screen, 16, PIPE_BUFFER_USAGE_VERTEX, sizeof(vertices));
+ pipe_buffer_write(p->screen, p->vbuf, 0, sizeof(vertices), vertices);
+ }
+
+ /* render target texture */
+ {
+ struct pipe_texture tmplt;
+ memset(&tmplt, 0, sizeof(tmplt));
+ tmplt.target = PIPE_TEXTURE_2D;
+ tmplt.format = PIPE_FORMAT_B8G8R8A8_UNORM; /* All drivers support this */
+ tmplt.width0 = WIDTH;
+ tmplt.height0 = HEIGHT;
+ tmplt.depth0 = 1;
+ tmplt.last_level = 0;
+ tmplt.tex_usage = PIPE_TEXTURE_USAGE_RENDER_TARGET;
+
+ p->target = p->screen->texture_create(p->screen, &tmplt);
+ }
+
+ /* disabled blending/masking */
+ memset(&p->blend, 0, sizeof(p->blend));
+ p->blend.rt[0].colormask = PIPE_MASK_RGBA;
+
+ /* no-op depth/stencil/alpha */
+ memset(&p->depthstencil, 0, sizeof(p->depthstencil));
+
+ /* rasterizer */
+ memset(&p->rasterizer, 0, sizeof(p->rasterizer));
+ p->rasterizer.front_winding = PIPE_WINDING_CW;
+ p->rasterizer.cull_mode = PIPE_WINDING_NONE;
+ p->rasterizer.gl_rasterization_rules = 1;
+
+ /* drawing destination */
+ memset(&p->framebuffer, 0, sizeof(p->framebuffer));
+ p->framebuffer.width = WIDTH;
+ p->framebuffer.height = HEIGHT;
+ p->framebuffer.nr_cbufs = 1;
+ p->framebuffer.cbufs[0] = p->screen->get_tex_surface(p->screen, p->target, 0, 0, 0, PIPE_BUFFER_USAGE_GPU_WRITE);
+
+ /* viewport, depth isn't really needed */
+ {
+ float x = 0;
+ float y = 0;
+ float z = FAR;
+ float half_width = (float)WIDTH / 2.0f;
+ float half_height = (float)HEIGHT / 2.0f;
+ float half_depth = ((float)FAR - (float)NEAR) / 2.0f;
+ float scale, bias;
+
+ if (FLIP) {
+ scale = -1.0f;
+ bias = (float)HEIGHT;
+ } else {
+ scale = 1.0f;
+ bias = 0.0f;
+ }
+
+ p->viewport.scale[0] = half_width;
+ p->viewport.scale[1] = half_height * scale;
+ p->viewport.scale[2] = half_depth;
+ p->viewport.scale[3] = 1.0f;
+
+ p->viewport.translate[0] = half_width + x;
+ p->viewport.translate[1] = (half_height + y) * scale + bias;
+ p->viewport.translate[2] = half_depth + z;
+ p->viewport.translate[3] = 0.0f;
+ }
+
+ /* vertex elements state */
+ memset(p->velem, 0, sizeof(p->velem));
+ p->velem[0].src_offset = 0 * 4 * sizeof(float); /* offset 0, first element */
+ p->velem[0].instance_divisor = 0;
+ p->velem[0].vertex_buffer_index = 0;
+ p->velem[0].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
+
+ p->velem[1].src_offset = 1 * 4 * sizeof(float); /* offset 16, second element */
+ p->velem[1].instance_divisor = 0;
+ p->velem[1].vertex_buffer_index = 0;
+ p->velem[1].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT;
+
+ /* vertex shader */
+ {
+ const uint semantic_names[] = { TGSI_SEMANTIC_POSITION,
+ TGSI_SEMANTIC_COLOR };
+ const uint semantic_indexes[] = { 0, 0 };
+ p->vs = util_make_vertex_passthrough_shader(p->pipe, 2, semantic_names, semantic_indexes);
+ }
+
+ /* fragment shader */
+ p->fs = util_make_fragment_passthrough_shader(p->pipe);
+}
+
+static void close_prog(struct program *p)
+{
+ /* unset all state */
+ cso_release_all(p->cso);
+
+ p->pipe->delete_vs_state(p->pipe, p->vs);
+ p->pipe->delete_fs_state(p->pipe, p->fs);
+
+ pipe_surface_reference(&p->framebuffer.cbufs[0], NULL);
+ pipe_texture_reference(&p->target, NULL);
+ pipe_buffer_reference(&p->vbuf, NULL);
+
+ cso_destroy_context(p->cso);
+ p->pipe->destroy(p->pipe);
+ p->screen->destroy(p->screen);
+
+ FREE(p);
+}
+
+static void draw(struct program *p)
+{
+ /* set the render target */
+ cso_set_framebuffer(p->cso, &p->framebuffer);
+
+ /* clear the render target */
+ p->pipe->clear(p->pipe, PIPE_CLEAR_COLOR, p->clear_color, 0, 0);
+
+ /* set misc state we care about */
+ cso_set_blend(p->cso, &p->blend);
+ cso_set_depth_stencil_alpha(p->cso, &p->depthstencil);
+ cso_set_rasterizer(p->cso, &p->rasterizer);
+ cso_set_viewport(p->cso, &p->viewport);
+
+ /* shaders */
+ cso_set_fragment_shader_handle(p->cso, p->fs);
+ cso_set_vertex_shader_handle(p->cso, p->vs);
+
+ /* vertex element data */
+ cso_set_vertex_elements(p->cso, 2, p->velem);
+
+ util_draw_vertex_buffer(p->pipe,
+ p->vbuf, 0,
+ PIPE_PRIM_TRIANGLES,
+ 3, /* verts */
+ 2); /* attribs/vert */
+
+ p->pipe->flush(p->pipe, PIPE_FLUSH_RENDER_CACHE, NULL);
+
+ debug_dump_surface_bmp(p->pipe, "result.bmp", p->framebuffer.cbufs[0]);
+}
+
+int main(int argc, char** argv)
+{
+ struct program *p = CALLOC_STRUCT(program);
+
+ init_prog(p);
+ draw(p);
+ close_prog(p);
+
+ return 0;
+}
diff --git a/progs/glsl/Makefile b/progs/glsl/Makefile
index 3b5a5959ae..6030c8002f 100644
--- a/progs/glsl/Makefile
+++ b/progs/glsl/Makefile
@@ -26,6 +26,7 @@ PROG_SOURCES = \
convolutions.c \
deriv.c \
fragcoord.c \
+ fsraytrace.c \
identity.c \
linktest.c \
mandelbrot.c \
@@ -46,7 +47,8 @@ PROG_SOURCES = \
trirast.c \
twoside.c \
vert-or-frag-only.c \
- vert-tex.c
+ vert-tex.c \
+ vsraytrace.c
UTIL_HEADERS = \
extfuncs.h \
diff --git a/progs/glsl/SConscript b/progs/glsl/SConscript
index 8f2ebcf69c..02884e5a71 100644
--- a/progs/glsl/SConscript
+++ b/progs/glsl/SConscript
@@ -8,6 +8,7 @@ progs = [
'convolutions',
'deriv',
'fragcoord',
+ 'fsraytrace',
'identity',
'linktest',
'mandelbrot',
@@ -27,6 +28,7 @@ progs = [
'twoside',
'vert-or-frag-only',
'vert-tex',
+ 'vsraytrace',
]
for prog in progs:
diff --git a/progs/glsl/fsraytrace.c b/progs/glsl/fsraytrace.c
new file mode 100644
index 0000000000..af72a99099
--- /dev/null
+++ b/progs/glsl/fsraytrace.c
@@ -0,0 +1,412 @@
+/* -*- mode: c; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; coding: utf-8-unix -*- */
+/*
+ Copyright (c) 2010 Kristóf Ralovich
+
+ 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 THE
+ AUTHORS OR COPYRIGHT HOLDERS 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 <GL/glew.h>
+#include <GL/glut.h>
+#include "shaderutil.h"
+#include <math.h>
+
+static int Win;
+static int WinWidth = 512, WinHeight = 512;
+static int mouseGrabbed = 0;
+static GLuint vertShader;
+static GLuint fragShader;
+static GLuint program;
+static float rot[9] = {1,0,0, 0,1,0, 0,0,1};
+
+static const char* vsSource =
+ "varying vec2 rayDir; \n"
+ " \n"
+ "void main() \n"
+ "{ \n"
+ " rayDir = gl_MultiTexCoord0.xy - vec2(0.5,0.5); \n"
+ " gl_Position = gl_ProjectionMatrix * gl_Vertex; \n"
+ "}\n";
+
+static const char* fsSource =
+ "const float INF = 9999.9; \n"
+ "const float EPSILON = 0.00001; \n"
+ "const vec3 lightPos = vec3(0.0, 8.0, 1.0); \n"
+ "const vec4 backgroundColor = vec4(0.2,0.3,0.4,1); \n"
+ " \n"
+ "varying vec2 rayDir; \n"
+ " \n"
+ "uniform mat3 rot; \n"
+ " \n"
+ "struct Ray \n"
+ "{ \n"
+ "vec3 orig; \n"
+ "vec3 dir; \n"
+ "}; \n"
+ " \n"
+ "struct Sphere \n"
+ "{ \n"
+ " vec3 c; \n"
+ " float r; \n"
+ "}; \n"
+ " \n"
+ "struct Isec \n"
+ "{ \n"
+ " float t; \n"
+ " int idx; \n"
+ " vec3 hit; \n"
+ " vec3 n; \n"
+ "}; \n"
+ " \n"
+#ifdef __APPLE__
+ "Sphere spheres0 = Sphere( vec3(0.0,0.0,-1.0), 0.5 ); \n"
+ "Sphere spheres1 = Sphere( vec3(-3.0,0.0,-1.0), 1.5 ); \n"
+ "Sphere spheres2 = Sphere( vec3(0.0,3.0,-1.0), 0.5 ); \n"
+ "Sphere spheres3 = Sphere( vec3(2.0,0.0,-1.0), 1.0 ); \n"
+#else
+ "const Sphere spheres0 = Sphere( vec3(0.0,0.0,-1.0), 0.5 ); \n"
+ "const Sphere spheres1 = Sphere( vec3(-3.0,0.0,-1.0), 1.5 ); \n"
+ "const Sphere spheres2 = Sphere( vec3(0.0,3.0,-1.0), 0.5 ); \n"
+ "const Sphere spheres3 = Sphere( vec3(2.0,0.0,-1.0), 1.0 ); \n"
+#endif
+ " \n"
+ "// Mesa intel gen4 generates \"unsupported IR in fragment shader 13\" for\n"
+ "// sqrt, let's work around. \n"
+ "float \n"
+ "sqrt_hack(float f2) \n"
+ "{ \n"
+ " vec3 v = vec3(f2,0.0,0.0); \n"
+ " return length(v); \n"
+ "} \n"
+ " \n"
+ "void \n"
+ "intersect(const in Ray ray, \n"
+ " const in Sphere sph, \n"
+ " const in int idx, \n"
+ " inout Isec isec) \n"
+ "{ \n"
+ " // Project both o and the sphere to the plane perpendicular to d \n"
+ " // and containing c. Let x be the point where the ray intersects \n"
+ " // the plane. If |x-c| < r, the ray intersects the sphere. \n"
+ " vec3 o = ray.orig; \n"
+ " vec3 d = ray.dir; \n"
+ " vec3 n = -d; \n"
+ " vec3 c = sph.c; \n"
+ " float r = sph.r; \n"
+ " float t = dot(c-o,n)/dot(n,d); \n"
+ " vec3 x = o+d*t; \n"
+ " float e = length(x-c); \n"
+ " if(e > r) \n"
+ " { \n"
+ " // no intersection \n"
+ " return; \n"
+ " } \n"
+ " \n"
+ " // Apply Pythagorean theorem on the (intersection,x,c) triangle \n"
+ " // to get the distance between c and the intersection. \n"
+ "#ifndef BUGGY_INTEL_GEN4_GLSL \n"
+ " float f = sqrt(r*r - e*e); \n"
+ "#else \n"
+ " float f = sqrt_hack(r*r - e*e); \n"
+ "#endif \n"
+ " float dist = t - f; \n"
+ " if(dist < 0.0) \n"
+ " { \n"
+ " // inside the sphere \n"
+ " return; \n"
+ " } \n"
+ " \n"
+ " if(dist < EPSILON) \n"
+ " return; \n"
+ " \n"
+ " if(dist > isec.t) \n"
+ " return; \n"
+ " \n"
+ " isec.t = dist; \n"
+ " isec.idx = idx; \n"
+ " \n"
+ " isec.hit = ray.orig + ray.dir * isec.t; \n"
+ " isec.n = (isec.hit - c) / r; \n"
+ "} \n"
+ " \n"
+ "Isec \n"
+ "intersect(const in Ray ray, \n"
+ " const in float max_t /*= INF*/) \n"
+ "{ \n"
+ " Isec nearest; \n"
+ " nearest.t = max_t; \n"
+ " nearest.idx = -1; \n"
+ " \n"
+ " intersect(ray, spheres0, 0, nearest); \n"
+ " intersect(ray, spheres1, 1, nearest); \n"
+ " intersect(ray, spheres2, 2, nearest); \n"
+ " intersect(ray, spheres3, 3, nearest); \n"
+ " \n"
+ " return nearest; \n"
+ "} \n"
+ " \n"
+ "vec4 \n"
+ "idx2color(const in int idx) \n"
+ "{ \n"
+ " vec4 diff; \n"
+ " if(idx == 0) \n"
+ " diff = vec4(1.0, 0.0, 0.0, 0.0); \n"
+ " else if(idx == 1) \n"
+ " diff = vec4(0.0, 1.0, 0.0, 0.0); \n"
+ " else if(idx == 2) \n"
+ " diff = vec4(0.0, 0.0, 1.0, 0.0); \n"
+ " else if(idx == 3) \n"
+ " diff = vec4(1.0, 1.0, 0.0, 0.0); \n"
+ " return diff; \n"
+ "} \n"
+ " \n"
+ "vec4 \n"
+ "trace0(const in Ray ray) \n"
+ "{ \n"
+ " Isec isec = intersect(ray, INF); \n"
+ " \n"
+ " if(isec.idx == -1) \n"
+ " { \n"
+ " return backgroundColor; \n"
+ " } \n"
+ " \n"
+ " vec4 diff = idx2color(isec.idx); \n"
+ " \n"
+ " vec3 N = isec.n; \n"
+ " vec3 L = normalize(lightPos-isec.hit); \n"
+ " vec3 camera_dir = normalize(ray.orig - isec.hit); \n"
+ " return dot(N,L)*diff + pow( \n"
+ " clamp(dot(reflect(-L,N),camera_dir),0.0,1.0),16.0); \n"
+ "} \n"
+ " \n"
+ "vec4 \n"
+ "trace1(const in Ray ray) \n"
+ "{ \n"
+ " Isec isec = intersect(ray, INF); \n"
+ " \n"
+ " if(isec.idx == -1) \n"
+ " { \n"
+ " return backgroundColor; \n"
+ " } \n"
+ " \n"
+ " Ray reflRay = Ray(isec.hit, reflect(ray.dir, isec.n)); \n"
+ " \n"
+ " vec4 reflCol = trace0(reflRay); \n"
+ " \n"
+ " vec4 diff = idx2color(isec.idx) + reflCol; \n"
+ " \n"
+ " vec3 N = isec.n; \n"
+ " vec3 L = normalize(lightPos-isec.hit); \n"
+ " vec3 camera_dir = normalize(ray.orig - isec.hit); \n"
+ " return dot(N,L)*diff + pow( \n"
+ " clamp(dot(reflect(-L,N),camera_dir),0.0,1.0),16.0); \n"
+ "} \n"
+ " \n"
+ "void main() \n"
+ "{ \n"
+ " const float z = -0.5; \n"
+ " const vec3 cameraPos = vec3(0,0,3); \n"
+ " Ray r = Ray(cameraPos, normalize(vec3(rayDir, z) * rot)); \n"
+ " gl_FragColor = trace1(r); \n"
+ "}\n";
+
+static
+float
+deg2rad(const float degree)
+{
+ return( degree * 0.017453292519943295769236907684886F);
+}
+
+static void
+rotate_xy(float* mat3, const float degreesAroundX, const float degreesAroundY)
+{
+ const float rad1 = deg2rad(degreesAroundX);
+ const float c1 = cosf(rad1);
+ const float s1 = sinf(rad1);
+ const float rad2 = deg2rad(degreesAroundY);
+ const float c2 = cosf(rad2);
+ const float s2 = sinf(rad2);
+ mat3[0] = c2; mat3[3] = 0.0F; mat3[6] = s2;
+ mat3[1] = s1*s2; mat3[4] = c1; mat3[7] = -s1*c2;
+ mat3[2] = -c1*s2;mat3[5] = s1; mat3[8] = c1*c2;
+}
+
+static void
+identity(float* mat3)
+{
+ mat3[0] = 1.0F; mat3[3] = 0.0F; mat3[6] = 0.0F;
+ mat3[1] = 0.0F; mat3[4] = 1.0F; mat3[7] = 0.0F;
+ mat3[2] = 0.0F; mat3[5] = 0.0F; mat3[8] = 1.0F;
+}
+
+static void
+Draw(void)
+{
+ GLint location = glGetUniformLocation(program, "rot");
+ static const float m = -10.F;
+ static const float p = 10.F;
+ static const float d = -0.5F;
+
+ glUseProgram(program);
+ glUniformMatrix3fv(location, 1, 0, rot);
+
+ glBegin(GL_QUADS);
+ {
+ glTexCoord2f(0.0F, 0.0F); glVertex3f(m, m, d);
+ glTexCoord2f(1.0F, 0.0F); glVertex3f(p, m, d);
+ glTexCoord2f(1.0F, 1.0F); glVertex3f(p, p, d);
+ glTexCoord2f(0.0F, 1.0F); glVertex3f(m, p, d);
+ }
+ glEnd();
+ glUseProgram(0);
+
+ glutSwapBuffers();
+
+ {
+ static int frames = 0;
+ static int t0 = 0;
+ static int t1 = 0;
+ float dt;
+ frames++;
+ t1 = glutGet(GLUT_ELAPSED_TIME);
+ dt = (float)(t1-t0)/1000.0F;
+ if(dt >= 5.0F)
+ {
+ float fps = (float)frames / dt;
+ printf("%f FPS (%d frames in %f seconds)\n", fps, frames, dt);
+ frames = 0;
+ t0 = t1;
+ }
+ }
+}
+
+
+static void
+Reshape(int width, int height)
+{
+ WinWidth = width;
+ WinHeight = height;
+ glViewport(0, 0, width, height);
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glOrtho(-10, 10, -10, 10, -1, 1);
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+}
+
+
+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
+drag(int x, int y)
+{
+ float scale = 1.5F;
+ if(mouseGrabbed)
+ {
+ static GLfloat xRot = 0, yRot = 0;
+ xRot = (float)(x - WinWidth/2) / scale;
+ yRot = (float)(y - WinHeight/2) / scale;
+ identity(rot);
+ rotate_xy(rot, yRot, xRot);
+ glutPostRedisplay();
+ }
+}
+
+
+static
+void
+mouse(int button, int state, int x, int y)
+{
+ mouseGrabbed = (state == GLUT_DOWN);
+}
+
+
+static void
+Init(void)
+{
+ glDisable(GL_DEPTH_TEST);
+
+ if(!ShadersSupported())
+ {
+ fprintf(stderr, "Shaders are not supported!\n");
+ exit(-1);
+ }
+
+ vertShader = CompileShaderText(GL_VERTEX_SHADER, vsSource);
+ fragShader = CompileShaderText(GL_FRAGMENT_SHADER, fsSource);
+ program = LinkShaders(vertShader, fragShader);
+ glUseProgram(0);
+
+ if(glGetError() != 0)
+ {
+ fprintf(stderr, "Shaders were not loaded!\n");
+ exit(-1);
+ }
+
+ if(!glIsShader(vertShader))
+ {
+ fprintf(stderr, "Vertex shader failed!\n");
+ exit(-1);
+ }
+
+ if(!glIsProgram(program))
+ {
+ fprintf(stderr, "Shader program failed!\n");
+ exit(-1);
+ }
+
+ printf("GL_RENDERER = %s\n",(const char *) glGetString(GL_RENDERER));
+}
+
+
+int
+main(int argc, char *argv[])
+{
+ glutInitWindowSize(WinWidth, WinHeight);
+ glutInit(&argc, argv);
+ glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
+ Win = glutCreateWindow(argv[0]);
+ glewInit();
+ glutReshapeFunc(Reshape);
+ glutKeyboardFunc(Key);
+ glutDisplayFunc(Draw);
+ glutMouseFunc(mouse);
+ glutMotionFunc(drag);
+ glutIdleFunc(Draw);
+ Init();
+ glutMainLoop();
+ return 0;
+}
+
diff --git a/progs/glsl/vsraytrace.c b/progs/glsl/vsraytrace.c
new file mode 100644
index 0000000000..64d928883e
--- /dev/null
+++ b/progs/glsl/vsraytrace.c
@@ -0,0 +1,401 @@
+/* -*- mode: c; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2; coding: utf-8-unix -*- */
+/*
+ Copyright (c) 2010 Kristóf Ralovich
+
+ 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 THE
+ AUTHORS OR COPYRIGHT HOLDERS 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 <GL/glew.h>
+#include <GL/glut.h>
+#include "shaderutil.h"
+#include <math.h>
+
+static int Win;
+static int WinWidth = 256, WinHeight = 256;
+static GLboolean mouseGrabbed = GL_FALSE;
+static GLuint vertShader;
+static GLuint program;
+float rot[9] = {1,0,0, 0,1,0, 0,0,1};
+
+static const char* vsSource =
+ "const float INF = 9999.9; \n"
+ "const float EPSILON = 0.00001; \n"
+ "const vec3 lightPos = vec3(0.0, 8.0, 1.0); \n"
+ "const vec4 backgroundColor = vec4(0.2,0.3,0.4,1); \n"
+ " \n"
+ "uniform mat3 rot; \n"
+ " \n"
+ "struct Ray \n"
+ "{ \n"
+ "vec3 orig; \n"
+ "vec3 dir; \n"
+ "}; \n"
+ " \n"
+ "struct Sphere \n"
+ "{ \n"
+ " vec3 c; \n"
+ " float r; \n"
+ "}; \n"
+ " \n"
+ "struct Isec \n"
+ "{ \n"
+ " float t; \n"
+ " int idx; \n"
+ " vec3 hit; \n"
+ " vec3 n; \n"
+ "}; \n"
+ " \n"
+#ifdef __APPLE__
+ "Sphere spheres0 = Sphere( vec3(0.0,0.0,-1.0), 0.5 ); \n"
+ "Sphere spheres1 = Sphere( vec3(-3.0,0.0,-1.0), 1.5 ); \n"
+ "Sphere spheres2 = Sphere( vec3(0.0,3.0,-1.0), 0.5 ); \n"
+ "Sphere spheres3 = Sphere( vec3(2.0,0.0,-1.0), 1.0 ); \n"
+#else
+ "const Sphere spheres0 = Sphere( vec3(0.0,0.0,-1.0), 0.5 ); \n"
+ "const Sphere spheres1 = Sphere( vec3(-3.0,0.0,-1.0), 1.5 ); \n"
+ "const Sphere spheres2 = Sphere( vec3(0.0,3.0,-1.0), 0.5 ); \n"
+ "const Sphere spheres3 = Sphere( vec3(2.0,0.0,-1.0), 1.0 ); \n"
+#endif
+ " \n"
+ "// Mesa intel gen4 generates \"unsupported IR in fragment shader 13\" for\n"
+ "// sqrt, let's work around. \n"
+ "float \n"
+ "sqrt_hack(float f2) \n"
+ "{ \n"
+ " vec3 v = vec3(f2,0.0,0.0); \n"
+ " return length(v); \n"
+ "} \n"
+ " \n"
+ "void \n"
+ "intersect(const in Ray ray, \n"
+ " const in Sphere sph, \n"
+ " const in int idx, \n"
+ " inout Isec isec) \n"
+ "{ \n"
+ " // Project both o and the sphere to the plane perpendicular to d \n"
+ " // and containing c. Let x be the point where the ray intersects \n"
+ " // the plane. If |x-c| < r, the ray intersects the sphere. \n"
+ " vec3 o = ray.orig; \n"
+ " vec3 d = ray.dir; \n"
+ " vec3 n = -d; \n"
+ " vec3 c = sph.c; \n"
+ " float r = sph.r; \n"
+ " float t = dot(c-o,n)/dot(n,d); \n"
+ " vec3 x = o+d*t; \n"
+ " float e = length(x-c); \n"
+ " if(e > r) \n"
+ " { \n"
+ " // no intersection \n"
+ " return; \n"
+ " } \n"
+ " \n"
+ " // Apply Pythagorean theorem on the (intersection,x,c) triangle \n"
+ " // to get the distance between c and the intersection. \n"
+ "#define BUGGY_INTEL_GEN4_GLSL 1 \n"
+ "#ifndef BUGGY_INTEL_GEN4_GLSL \n"
+ " float f = sqrt(r*r - e*e); \n"
+ "#else \n"
+ " float f = sqrt_hack(r*r - e*e); \n"
+ "#endif \n"
+ " float dist = t - f; \n"
+ " if(dist < 0.0) \n"
+ " { \n"
+ " // inside the sphere \n"
+ " return; \n"
+ " } \n"
+ " \n"
+ " if(dist < EPSILON) \n"
+ " return; \n"
+ " \n"
+ " if(dist > isec.t) \n"
+ " return; \n"
+ " \n"
+ " isec.t = dist; \n"
+ " isec.idx = idx; \n"
+ " \n"
+ " isec.hit = ray.orig + ray.dir * isec.t; \n"
+ " isec.n = (isec.hit - c) / r; \n"
+ "} \n"
+ " \n"
+ "Isec \n"
+ "intersect(const in Ray ray, \n"
+ " const in float max_t /*= INF*/) \n"
+ "{ \n"
+ " Isec nearest; \n"
+ " nearest.t = max_t; \n"
+ " nearest.idx = -1; \n"
+ " \n"
+ " intersect(ray, spheres0, 0, nearest); \n"
+ " intersect(ray, spheres1, 1, nearest); \n"
+ " intersect(ray, spheres2, 2, nearest); \n"
+ " intersect(ray, spheres3, 3, nearest); \n"
+ " \n"
+ " return nearest; \n"
+ "} \n"
+ " \n"
+ "vec4 \n"
+ "idx2color(const in int idx) \n"
+ "{ \n"
+ " vec4 diff; \n"
+ " if(idx == 0) \n"
+ " diff = vec4(1.0, 0.0, 0.0, 0.0); \n"
+ " else if(idx == 1) \n"
+ " diff = vec4(0.0, 1.0, 0.0, 0.0); \n"
+ " else if(idx == 2) \n"
+ " diff = vec4(0.0, 0.0, 1.0, 0.0); \n"
+ " else if(idx == 3) \n"
+ " diff = vec4(1.0, 1.0, 0.0, 0.0); \n"
+ " return diff; \n"
+ "} \n"
+ " \n"
+ "vec4 \n"
+ "trace0(const in Ray ray) \n"
+ "{ \n"
+ " Isec isec = intersect(ray, INF); \n"
+ " \n"
+ " if(isec.idx == -1) \n"
+ " { \n"
+ " return backgroundColor; \n"
+ " } \n"
+ " \n"
+ " vec4 diff = idx2color(isec.idx); \n"
+ " \n"
+ " vec3 N = isec.n; \n"
+ " vec3 L = normalize(lightPos-isec.hit); \n"
+ " vec3 camera_dir = normalize(ray.orig - isec.hit); \n"
+ " return dot(N,L)*diff + pow( \n"
+ " clamp(dot(reflect(-L,N),camera_dir),0.0,1.0),16.0); \n"
+ "} \n"
+ " \n"
+ "vec4 \n"
+ "trace1(const in Ray ray) \n"
+ "{ \n"
+ " Isec isec = intersect(ray, INF); \n"
+ " \n"
+ " if(isec.idx == -1) \n"
+ " { \n"
+ " return backgroundColor; \n"
+ " } \n"
+ " \n"
+ " Ray reflRay = Ray(isec.hit, reflect(ray.dir, isec.n)); \n"
+ " \n"
+ " vec4 reflCol = trace0(reflRay); \n"
+ " \n"
+ " vec4 diff = idx2color(isec.idx) + reflCol; \n"
+ " \n"
+ " vec3 N = isec.n; \n"
+ " vec3 L = normalize(lightPos-isec.hit); \n"
+ " vec3 camera_dir = normalize(ray.orig - isec.hit); \n"
+ " return dot(N,L)*diff + pow( \n"
+ " clamp(dot(reflect(-L,N),camera_dir),0.0,1.0),16.0); \n"
+ "} \n"
+ " \n"
+ "void main() \n"
+ "{ \n"
+ " const vec3 cameraPos = vec3(0,0,3); \n"
+ " vec3 rayDir = normalize(vec3(gl_Vertex.x, gl_Vertex.y, -1.0) * rot);\n"
+ " Ray ray = Ray(cameraPos, rayDir); \n"
+ " gl_Position = gl_Vertex; \n"
+ " gl_FrontColor = trace1(ray); \n"
+ "}\n";
+
+
+static
+float
+deg2rad(const float degree)
+{
+ return( degree * 0.017453292519943295769236907684886F);
+}
+
+static void
+rotate_xy(float* mat3, const float degreesAroundX, const float degreesAroundY)
+{
+ const float rad1 = deg2rad(degreesAroundX);
+ const float c1 = cosf(rad1);
+ const float s1 = sinf(rad1);
+ const float rad2 = deg2rad(degreesAroundY);
+ const float c2 = cosf(rad2);
+ const float s2 = sinf(rad2);
+ mat3[0] = c2; mat3[3] = 0.0F; mat3[6] = s2;
+ mat3[1] = s1*s2; mat3[4] = c1; mat3[7] = -s1*c2;
+ mat3[2] = -c1*s2;mat3[5] = s1; mat3[8] = c1*c2;
+}
+
+static void
+identity(float* mat3)
+{
+ mat3[0] = 1.0F; mat3[3] = 0.0F; mat3[6] = 0.0F;
+ mat3[1] = 0.0F; mat3[4] = 1.0F; mat3[7] = 0.0F;
+ mat3[2] = 0.0F; mat3[5] = 0.0F; mat3[8] = 1.0F;
+}
+
+static void
+Draw(void)
+{
+ const float w = 0.5F * WinWidth;
+ const float h = 0.5F * WinHeight;
+ int x,y;
+
+ GLint location = glGetUniformLocation(program, "rot");
+
+ glUseProgram(program);
+ glUniformMatrix3fv(location, 1, 0, rot);
+ glBegin(GL_POINTS);
+ for(y = 0; y < WinHeight; y++)
+ {
+ for(x = 0; x < WinWidth; x++)
+ {
+ const float posx = x / w - 1.0F;
+ const float posy = y / h - 1.0F;
+ glVertex2f(posx, posy);
+ }
+ }
+ glEnd();
+ glUseProgram(0);
+
+ glutSwapBuffers();
+
+ {
+ static int frames = 0;
+ static int t0 = 0;
+ static int t1 = 0;
+ float dt;
+ frames++;
+ t1 = glutGet(GLUT_ELAPSED_TIME);
+ dt = (float)(t1-t0)/1000.0F;
+ if (dt >= 5.0F)
+ {
+ float fps = (float)frames / dt;
+ printf("%f FPS (%d frames in %f seconds)\n", fps, frames, dt);
+ frames = 0;
+ t0 = t1;
+ }
+ }
+}
+
+
+static void
+Reshape(int width, int height)
+{
+ WinWidth = width;
+ WinHeight = height;
+ glViewport(0, 0, width, height);
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+}
+
+
+static void
+Key(unsigned char key, int x, int y)
+{
+ if(key == 27)
+ {
+ glutDestroyWindow(Win);
+ exit(0);
+ }
+ glutPostRedisplay();
+}
+
+
+static
+void
+drag(int x, int y)
+{
+ float scale = 1.5F;
+ if(mouseGrabbed)
+ {
+ static GLfloat xRot = 0, yRot = 0;
+ xRot = (float)(x - WinWidth/2) / scale;
+ yRot = (float)(y - WinHeight/2) / scale;
+ identity(rot);
+ rotate_xy(rot, yRot, xRot);
+ glutPostRedisplay();
+ }
+}
+
+
+static
+void
+mouse(int button, int state, int x, int y)
+{
+ mouseGrabbed = (state == GLUT_DOWN);
+}
+
+
+static void
+Init(void)
+{
+ glDisable(GL_DEPTH_TEST);
+
+ if(!ShadersSupported())
+ {
+ fprintf(stderr, "Shaders are not supported!\n");
+ exit(-1);
+ }
+
+ vertShader = CompileShaderText(GL_VERTEX_SHADER, vsSource);
+ program = LinkShaders(vertShader, 0);
+ glUseProgram(0);
+
+ if(glGetError() != 0)
+ {
+ fprintf(stderr, "Shaders were not loaded!\n");
+ exit(-1);
+ }
+
+ if(!glIsShader(vertShader))
+ {
+ fprintf(stderr, "Vertex shader failed!\n");
+ exit(-1);
+ }
+
+ if(!glIsProgram(program))
+ {
+ fprintf(stderr, "Shader program failed!\n");
+ exit(-1);
+ }
+
+ printf("GL_RENDERER = %s\n",(const char *) glGetString(GL_RENDERER));
+}
+
+
+int
+main(int argc, char *argv[])
+{
+ glutInitWindowSize(WinWidth, WinHeight);
+ glutInit(&argc, argv);
+ glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
+ Win = glutCreateWindow(argv[0]);
+ glewInit();
+ glutReshapeFunc(Reshape);
+ glutKeyboardFunc(Key);
+ glutDisplayFunc(Draw);
+ glutIdleFunc(Draw);
+ glutMouseFunc(mouse);
+ glutMotionFunc(drag);
+ Init();
+ glutMainLoop();
+ return 0;
+}
+
diff --git a/progs/samples/copy.c b/progs/samples/copy.c
index 391c637d6f..353a3a2e1a 100644
--- a/progs/samples/copy.c
+++ b/progs/samples/copy.c
@@ -25,6 +25,7 @@
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
+#include <GL/glew.h>
#include <GL/glut.h>
@@ -35,7 +36,6 @@ GLint windW, windH;
char *fileName = 0;
PPMImage *image;
-float point[3];
float zoom;
GLint x, y;
@@ -97,27 +97,27 @@ static void Mouse(int button, int state, int mouseX, int mouseY)
static void Draw(void)
{
+ GLint src[3], dst[3];
glClear(GL_COLOR_BUFFER_BIT);
- point[0] = (windW / 2) - (image->sizeX / 2);
- point[1] = (windH / 2) - (image->sizeY / 2);
- point[2] = 0;
- glRasterPos3fv(point);
+ src[0] = (int) ((windW / 2.0) - (image->sizeX / 2.0));
+ src[1] = (int) ((windH / 2.0) - (image->sizeY / 2.0));
+ src[2] = 0;
+ glWindowPos3ivARB(src);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glPixelZoom(1.0, 1.0);
glDrawPixels(image->sizeX, image->sizeY, GL_RGB, GL_UNSIGNED_BYTE,
image->data);
- point[0] = (float)x;
- point[1] = windH - (float)y;
- point[2] = 0.0;
- glRasterPos3fv(point);
+ dst[0] = x;
+ dst[1] = windH - y;
+ dst[2] = 0;
+ glWindowPos3ivARB(dst);
glPixelZoom(zoom, zoom);
- glCopyPixels((windW/2)-(image->sizeX/2),
- (windH/2)-(image->sizeY/2),
+ glCopyPixels(src[0], src[1],
image->sizeX, image->sizeY, GL_COLOR);
glFlush();
@@ -170,8 +170,8 @@ int main(int argc, char **argv)
image = LoadPPM(fileName);
- windW = 300;
- windH = 300;
+ windW = 2*300;
+ windH = 2*300;
glutInitWindowPosition(0, 0); glutInitWindowSize( windW, windH);
type = GLUT_RGB;
@@ -182,6 +182,7 @@ int main(int argc, char **argv)
exit(1);
}
+ glewInit();
Init();
glutReshapeFunc(Reshape);
diff --git a/progs/samples/loadppm.c b/progs/samples/loadppm.c
index be056d6294..adae9b491e 100644
--- a/progs/samples/loadppm.c
+++ b/progs/samples/loadppm.c
@@ -9,7 +9,7 @@ static PPMImage *LoadPPM(const char *filename)
char buff[16];
PPMImage *result;
FILE *fp;
- int maxval;
+ int maxval, w, h;
fp = fopen(filename, "rb");
if (!fp)
@@ -37,11 +37,13 @@ static PPMImage *LoadPPM(const char *filename)
exit(1);
}
- if (fscanf(fp, "%lu %lu", &result->sizeX, &result->sizeY) != 2)
+ if (fscanf(fp, "%d %d", &w, &h) != 2)
{
fprintf(stderr, "Error loading image `%s'\n", filename);
exit(1);
}
+ result->sizeX = w;
+ result->sizeY = h;
if (fscanf(fp, "%d", &maxval) != 1)
{
diff --git a/progs/tests/Makefile b/progs/tests/Makefile
index 67efc3b7a9..6bb0249e17 100644
--- a/progs/tests/Makefile
+++ b/progs/tests/Makefile
@@ -41,6 +41,7 @@ SOURCES = \
copypixrate.c \
crossbar.c \
cva.c \
+ cva_huge.c \
cylwrap.c \
drawbuffers.c \
drawbuffers2.c \
diff --git a/progs/tests/SConscript b/progs/tests/SConscript
index 3580ba914d..037a0c35da 100644
--- a/progs/tests/SConscript
+++ b/progs/tests/SConscript
@@ -9,7 +9,6 @@ glx_progs = [
'getprocaddress',
'jkrahntest',
'sharedtex',
- 'texcompress2',
'texobjshare',
]
@@ -45,6 +44,7 @@ progs = [
'copypixrate',
'crossbar',
'cva',
+ 'cva_huge',
'cylwrap',
'drawbuffers',
'drawbuffers2',
diff --git a/progs/tests/cva_huge.c b/progs/tests/cva_huge.c
new file mode 100644
index 0000000000..88ec2af2a8
--- /dev/null
+++ b/progs/tests/cva_huge.c
@@ -0,0 +1,232 @@
+/*
+ * Copyright © 2010 Pauli Nieminen
+ *
+ * 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 (including the next
+ * paragraph) 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
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ */
+
+
+/*
+ * Test case for huge cva arrays. Mesa code has to split this to multiple VBOs
+ * which had memory access error.
+ * This test case doesn't render incorrectly but valgrind showed the memory
+ * access error.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#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/glut.h>
+
+GLfloat *verts;
+
+GLubyte *color;
+
+GLuint *indices;
+
+#define rows 1000 /* Create 1000x1000 vertex grid */
+#define row_width 5000.0
+#define grid_depth -50.0
+GLuint nr_verts_in_row = rows;
+GLuint nr_indices_in_strip = rows * 2;
+
+GLboolean double_buffer;
+GLboolean compiled = GL_TRUE;
+
+static void generate_verts( void )
+{
+ unsigned x, y;
+ GLfloat step = row_width /(GLfloat)(nr_verts_in_row - 1);
+ verts = malloc(sizeof(verts[0]) * 4 * nr_verts_in_row * nr_verts_in_row);
+
+ for (y = 0; y < nr_verts_in_row; ++y) {
+ for (x = 0; x < nr_verts_in_row; ++x) {
+ unsigned idx = 4*(x + y * nr_verts_in_row);
+ verts[idx + 0] = step * x - row_width/2.0;
+ verts[idx + 1] = step * y - row_width/2.0;
+ /* deep enough not to be vissible */
+ verts[idx + 2] = grid_depth;
+ verts[idx + 3] = 0.0;
+ }
+ }
+ glVertexPointer( 3, GL_FLOAT, sizeof(verts[0])*4, verts );
+}
+
+static void generate_colors( void )
+{
+ unsigned x, y;
+ GLfloat step = 255.0/(GLfloat)(nr_verts_in_row - 1);
+ color = malloc(sizeof(color[0]) * 4 * nr_verts_in_row * nr_verts_in_row);
+
+ for (y = 0; y < nr_verts_in_row; ++y) {
+ for (x = 0; x < nr_verts_in_row; ++x) {
+ unsigned idx = 4*(x + y * nr_verts_in_row);
+ color[idx + 0] = (GLubyte)(step * x);
+ color[idx + 1] = 0x00;
+ color[idx + 2] = (GLubyte)(step * y);
+ color[idx + 3] = 0x00;
+ }
+ }
+ glColorPointer( 4, GL_UNSIGNED_BYTE, 0, color );
+}
+
+static void generate_indices( void )
+{
+ unsigned strip, i;
+
+ /* indice size * number of strips * number of indices in strip */
+ indices = malloc(sizeof(indices[0]) * (nr_verts_in_row - 1) *
+ (nr_indices_in_strip));
+
+ for (strip = 0; strip < nr_verts_in_row - 1; strip += 2) {
+ for (i = 0; i < nr_indices_in_strip; i+=2) {
+ unsigned idx = i + strip * nr_indices_in_strip;
+ unsigned idx2 = (nr_indices_in_strip - i - 2) + (strip +
+ 1) * (nr_indices_in_strip);
+ indices[idx + 1] = i/2 + strip*nr_verts_in_row;
+ indices[idx] = i/2 + (strip + 1)*nr_verts_in_row;
+ if (strip + 1 < nr_verts_in_row - 1) {
+ indices[idx2] = i/2 + (strip + 1)*nr_verts_in_row;
+ indices[idx2 + 1] = i/2 + (strip + 2)*nr_verts_in_row;
+ }
+ }
+ }
+}
+
+static void init( void )
+{
+
+
+ generate_verts();
+ generate_colors();
+ generate_indices();
+
+ glClearColor( 0.0, 0.0, 0.0, 0.0 );
+ glShadeModel( GL_SMOOTH );
+
+ glEnableClientState( GL_VERTEX_ARRAY );
+ glEnableClientState( GL_COLOR_ARRAY );
+
+ glMatrixMode( GL_PROJECTION );
+ glLoadIdentity();
+ glFrustum( -100.0, 100.0, -100.0, 100.0, 1.0, 100.0 );
+ glMatrixMode( GL_MODELVIEW );
+ glLoadIdentity();
+
+#ifdef GL_EXT_compiled_vertex_array
+ if ( compiled ) {
+ glLockArraysEXT( 0, rows * rows );
+ }
+#endif
+}
+
+static void display( void )
+{
+ glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
+
+ glDrawElements( GL_TRIANGLE_STRIP, nr_indices_in_strip * (nr_verts_in_row - 1) , GL_UNSIGNED_INT, indices );
+
+ if ( double_buffer )
+ glutSwapBuffers();
+ else
+ glFlush();
+}
+
+static void keyboard( unsigned char key, int x, int y )
+{
+ switch ( key ) {
+ case 27:
+ exit( 0 );
+ break;
+ }
+
+ glutPostRedisplay();
+}
+
+static GLboolean args( int argc, char **argv )
+{
+ GLint i;
+
+ double_buffer = GL_TRUE;
+
+ for ( i = 1 ; i < argc ; i++ ) {
+ if ( strcmp( argv[i], "-sb" ) == 0 ) {
+ double_buffer = GL_FALSE;
+ } else if ( strcmp( argv[i], "-db" ) == 0 ) {
+ double_buffer = GL_TRUE;
+ } else {
+ fprintf( stderr, "%s (Bad option).\n", argv[i] );
+ return GL_FALSE;
+ }
+ }
+ return GL_TRUE;
+}
+
+int main( int argc, char **argv )
+{
+ GLenum type;
+ char *string;
+ double version;
+
+ glutInit( &argc, argv );
+
+ if ( args( argc, argv ) == GL_FALSE ) {
+ exit( 1 );
+ }
+
+ type = GLUT_RGB | GLUT_DEPTH;
+ type |= ( double_buffer ) ? GLUT_DOUBLE : GLUT_SINGLE;
+
+ glutInitDisplayMode( type );
+ glutInitWindowSize( 250, 250 );
+ glutInitWindowPosition( 100, 100 );
+ glutCreateWindow( "CVA Test" );
+
+ /* Make sure the server supports GL 1.2 vertex arrays.
+ */
+ string = (char *) glGetString( GL_VERSION );
+
+ version = atof(string);
+ if ( version < 1.2 ) {
+ fprintf( stderr, "This program requires OpenGL 1.2 vertex arrays.\n" );
+ exit( -1 );
+ }
+
+ /* See if the server supports compiled vertex arrays.
+ */
+ string = (char *) glGetString( GL_EXTENSIONS );
+
+ if ( !strstr( string, "GL_EXT_compiled_vertex_array" ) ) {
+ fprintf( stderr, "Compiled vertex arrays not supported by this renderer.\n" );
+ compiled = GL_FALSE;
+ }
+
+ init();
+
+ glutDisplayFunc( display );
+ glutKeyboardFunc( keyboard );
+ glutMainLoop();
+
+ return 0;
+}
diff --git a/progs/tests/stencil_twoside.c b/progs/tests/stencil_twoside.c
index 7d871e5877..1010139a20 100644
--- a/progs/tests/stencil_twoside.c
+++ b/progs/tests/stencil_twoside.c
@@ -26,7 +26,7 @@
* \file stencil_twoside.c
*
* Simple test of GL_ATI_separate_stencil (or the OGL 2.0 equivalent) functionality.
- * Four squares are drawn
+ * Five squares (or six if stencil wrap is available) are drawn
* with different stencil modes, but all should be rendered with the same
* final color.
*/
@@ -37,7 +37,7 @@
#include <GL/glut.h>
static int use20syntax = 1;
-static int Width = 550;
+static int Width = 650;
static int Height = 200;
static const GLfloat Near = 5.0, Far = 25.0;
@@ -70,7 +70,7 @@ static void Display( void )
*/
glDisable(GL_STENCIL_TEST);
- glTranslatef(-6.0, 0, 0);
+ glTranslatef(-7.0, 0, 0);
glBegin(GL_QUADS);
glColor3f( 0.5, 0.5, 0.5 );
glVertex2f(-1, -1);
@@ -85,6 +85,9 @@ static void Display( void )
/* Draw the first two squares using incr for the affected face
*/
+ /*************************************************************************
+ * 2nd square
+ */
if (use20syntax) {
stencil_func_separate(GL_FRONT, GL_ALWAYS, 0, ~0);
stencil_func_separate(GL_BACK, GL_ALWAYS, 0, ~0);
@@ -98,8 +101,8 @@ static void Display( void )
glTranslatef(3.0, 0, 0);
glBegin(GL_QUADS);
glColor3f( 0.9, 0.9, 0.9 );
- /* this should be front facing */
for ( i = 0 ; i < (max_stencil + 5) ; i++ ) {
+ /* this should be front facing */
glVertex2f(-1, -1);
glVertex2f( 1, -1);
glVertex2f( 1, 1);
@@ -107,6 +110,7 @@ static void Display( void )
}
glEnd();
+ /* stencil vals should be equal to max_stencil */
glStencilFunc(GL_EQUAL, max_stencil, ~0);
glBegin(GL_QUADS);
glColor3f( 0.5, 0.5, 0.5 );
@@ -116,6 +120,9 @@ static void Display( void )
glVertex2f(-1, 1);
glEnd();
+ /*************************************************************************
+ * 3rd square
+ */
if (use20syntax) {
stencil_func_separate(GL_FRONT, GL_ALWAYS, 0, ~0);
stencil_func_separate(GL_BACK, GL_ALWAYS, 0, ~0);
@@ -129,9 +136,8 @@ static void Display( void )
glTranslatef(3.0, 0, 0);
glBegin(GL_QUADS);
glColor3f( 0.9, 0.9, 0.9 );
-
- /* this should be back facing */
for ( i = 0 ; i < (max_stencil + 5) ; i++ ) {
+ /* this should be back facing */
glVertex2f(-1, -1);
glVertex2f(-1, 1);
glVertex2f( 1, 1);
@@ -139,6 +145,7 @@ static void Display( void )
}
glEnd();
+ /* stencil vals should be equal to max_stencil */
glStencilFunc(GL_EQUAL, max_stencil, ~0);
glBegin(GL_QUADS);
glColor3f( 0.5, 0.5, 0.5 );
@@ -148,6 +155,9 @@ static void Display( void )
glVertex2f(-1, 1);
glEnd();
+ /*************************************************************************
+ * 4th square
+ */
if (use20syntax) {
stencil_func_separate(GL_FRONT, GL_NEVER, 0, ~0);
stencil_func_separate(GL_BACK, GL_ALWAYS, 0, ~0);
@@ -161,15 +171,13 @@ static void Display( void )
glTranslatef(3.0, 0, 0);
glBegin(GL_QUADS);
glColor3f( 0.9, 0.9, 0.9 );
-
- /* this should be back facing */
for ( i = 0 ; i < (max_stencil + 5) ; i++ ) {
- /* this should be back facing */
+ /* this should be back facing */
glVertex2f(-1, -1);
glVertex2f(-1, 1);
glVertex2f( 1, 1);
glVertex2f( 1, -1);
- /* this should be front facing */
+ /* this should be front facing */
glVertex2f(-1, -1);
glVertex2f( 1, -1);
glVertex2f( 1, 1);
@@ -177,6 +185,7 @@ static void Display( void )
}
glEnd();
+ /* stencil vals should be equal to max_stencil */
glStencilFunc(GL_EQUAL, max_stencil, ~0);
glBegin(GL_QUADS);
glColor3f( 0.5, 0.5, 0.5 );
@@ -186,6 +195,9 @@ static void Display( void )
glVertex2f(-1, 1);
glEnd();
+ /*************************************************************************
+ * 5th square
+ */
if (use20syntax) {
stencil_func_separate(GL_FRONT, GL_ALWAYS, 0, ~0);
stencil_func_separate(GL_BACK, GL_ALWAYS, 0, ~0);
@@ -193,21 +205,19 @@ static void Display( void )
else {
stencil_func_separate_ati(GL_ALWAYS, GL_ALWAYS, 0, ~0);
}
- stencil_op_separate(GL_FRONT, GL_KEEP, GL_KEEP, GL_DECR);
- stencil_op_separate(GL_BACK, GL_KEEP, GL_KEEP, GL_INCR);
+ stencil_op_separate(GL_FRONT, GL_KEEP, GL_KEEP, GL_INCR);
+ stencil_op_separate(GL_BACK, GL_KEEP, GL_KEEP, GL_DECR);
glTranslatef(3.0, 0, 0);
glBegin(GL_QUADS);
glColor3f( 0.9, 0.9, 0.9 );
-
- /* this should be back facing */
for ( i = 0 ; i < (max_stencil + 5) ; i++ ) {
- /* this should be back facing */
+ /* this should be back facing */
glVertex2f(-1, -1);
glVertex2f(-1, 1);
glVertex2f( 1, 1);
glVertex2f( 1, -1);
- /* this should be front facing */
+ /* this should be front facing */
glVertex2f(-1, -1);
glVertex2f( 1, -1);
glVertex2f( 1, 1);
@@ -224,6 +234,47 @@ static void Display( void )
glVertex2f(-1, 1);
glEnd();
+ /*************************************************************************
+ * 6th square
+ */
+ if (glutExtensionSupported("GL_EXT_stencil_wrap")) {
+ if (use20syntax) {
+ stencil_func_separate(GL_FRONT, GL_ALWAYS, 0, ~0);
+ stencil_func_separate(GL_BACK, GL_ALWAYS, 0, ~0);
+ }
+ else {
+ stencil_func_separate_ati(GL_ALWAYS, GL_ALWAYS, 0, ~0);
+ }
+ stencil_op_separate(GL_FRONT, GL_KEEP, GL_KEEP, GL_KEEP);
+ stencil_op_separate(GL_BACK, GL_KEEP, GL_KEEP, GL_INCR_WRAP);
+
+ glTranslatef(3.0, 0, 0);
+ glBegin(GL_QUADS);
+ glColor3f( 0.9, 0.9, 0.9 );
+ for ( i = 0 ; i < (max_stencil + 5) ; i++ ) {
+ /* this should be back facing */
+ glVertex2f(-1, -1);
+ glVertex2f(-1, 1);
+ glVertex2f( 1, 1);
+ glVertex2f( 1, -1);
+ /* this should be front facing */
+ glVertex2f(-1, -1);
+ glVertex2f( 1, -1);
+ glVertex2f( 1, 1);
+ glVertex2f(-1, 1);
+ }
+ glEnd();
+
+ glStencilFunc(GL_EQUAL, 260 - 255, ~0);
+ glBegin(GL_QUADS);
+ glColor3f( 0.5, 0.5, 0.5 );
+ glVertex2f(-1, -1);
+ glVertex2f( 1, -1);
+ glVertex2f( 1, 1);
+ glVertex2f(-1, 1);
+ glEnd();
+ }
+
glPopMatrix();
glutSwapBuffers();
@@ -278,7 +329,7 @@ static void Init( void )
stencil_func_separate_ati = (PFNGLSTENCILFUNCSEPARATEATIPROC) glutGetProcAddress( "glStencilFuncSeparateATI" );
stencil_op_separate = (PFNGLSTENCILOPSEPARATEPROC) glutGetProcAddress( "glStencilOpSeparate" );
- printf("\nAll 5 squares should be the same color.\n");
+ printf("\nAll 5 (or 6) squares should be the same color.\n");
}
diff --git a/progs/trivial/tri-stencil.c b/progs/trivial/tri-stencil.c
index 9f68bca914..d66b68c415 100644
--- a/progs/trivial/tri-stencil.c
+++ b/progs/trivial/tri-stencil.c
@@ -77,6 +77,7 @@ static void Draw(void)
glStencilFunc(GL_ALWAYS, 1, 1);
glStencilOp(GL_KEEP, GL_KEEP, GL_REPLACE);
+ /* red triangle (setting stencil to 1) */
glColor3ub(200, 0, 0);
glBegin(GL_POLYGON);
glVertex3i(-4, -4, 0);
@@ -88,6 +89,7 @@ static void Draw(void)
glStencilFunc(GL_EQUAL, 1, 1);
glStencilOp(GL_INCR, GL_KEEP, GL_DECR);
+ /* green quad (if over red, decr stencil to 0, else incr to 1) */
glColor3ub(0, 200, 0);
glBegin(GL_POLYGON);
glVertex3i(3, 3, 0);
@@ -101,6 +103,7 @@ static void Draw(void)
glStencilFunc(GL_EQUAL, 1, 1);
glStencilOp(GL_KEEP, GL_KEEP, GL_KEEP);
+ /* blue quad (where stencil == 1) */
glColor3ub(0, 0, 200);
glBegin(GL_POLYGON);
glVertex3f(2.5, 2.5, 0);
diff --git a/progs/xdemos/Makefile b/progs/xdemos/Makefile
index f81aafe00f..660c540657 100644
--- a/progs/xdemos/Makefile
+++ b/progs/xdemos/Makefile
@@ -9,7 +9,7 @@ INCDIR = $(TOP)/include
LIB_DEP = $(TOP)/$(LIB_DIR)/$(GL_LIB_NAME)
# Add X11 and pthread libs to satisfy GNU gold.
-APP_LIB_DEPS += $(X_LIBS) -lpthread
+APP_LIB_DEPS += $(X11_LIBS) -lpthread
LIBS = -L$(TOP)/$(LIB_DIR) -l$(GL_LIB) $(APP_LIB_DEPS)
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-30 06:05:16 +0000