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authorJulien Cristau <[email protected]>2008-07-01 13:17:44 +0200
committerJulien Cristau <[email protected]>2008-07-01 13:18:27 +0200
commit374be37dd904b8dc7b91b4b782a6b7b46b00afba (patch)
tree2562d5fcf4183bdc67d6c418513e1f562dddfe20 /progs/demos/copypix.c
parent2b831e73f5027850837e613636915c7dd6c7078a (diff)
parentd3f7b463c3975c070503053e4ad70af99016a756 (diff)
Merge branch 'master' of git.freedesktop.org:/git/mesa/mesa into debian-experimental
Conflicts: .gitignore Makefile bin/mklib configs/.gitignore configs/default configs/freebsd configs/freebsd-dri configs/linux-osmesa configs/linux-osmesa16 configs/linux-osmesa16-static configs/linux-osmesa32 docs/download.html docs/install.html docs/news.html docs/relnotes.html doxygen/Makefile doxygen/doxy.bat doxygen/header.html doxygen/header_subset.html include/GL/internal/dri_interface.h progs/demos/.gitignore progs/directfb/Makefile progs/egl/Makefile progs/fbdev/Makefile progs/fbdev/glfbdevtest.c progs/fp/Makefile progs/glsl/.gitignore progs/glsl/Makefile progs/glsl/bump.c progs/glsl/mandelbrot.c progs/glsl/noise.c progs/glsl/toyball.c progs/miniglx/Makefile progs/samples/.gitignore progs/slang/Makefile progs/tests/.gitignore progs/tests/Makefile progs/tests/arbnpot.c progs/tests/cva.c progs/tests/dinoshade.c progs/tests/drawbuffers.c progs/tests/fbotest2.c progs/tests/fbotexture.c progs/tests/getprocaddress.c progs/tests/mipmap_limits.c progs/tests/multipal.c progs/tests/texline.c progs/tools/trace/Makefile progs/trivial/Makefile progs/trivial/dlist-edgeflag-dangling.c progs/trivial/dlist-edgeflag.c progs/trivial/point-param.c progs/trivial/quad-clip-nearplane.c progs/trivial/tri.c progs/vp/Makefile progs/xdemos/.gitignore progs/xdemos/Makefile progs/xdemos/glthreads.c src/egl/Makefile src/egl/drivers/demo/Makefile src/egl/drivers/dri/Makefile src/egl/main/Makefile src/glu/mesa/Makefile src/glu/mesa/Makefile.m32 src/glu/mesa/project.c src/glu/mini/project.c src/glut/directfb/Makefile src/glut/directfb/callback.c src/glut/directfb/events.c src/glut/directfb/internal.h src/glut/directfb/window.c src/glut/os2/Makefile src/glut/os2/WarpWin.cpp src/glut/os2/glutOverlay.cpp src/glut/os2/glut_8x13.cpp src/glut/os2/glut_9x15.cpp src/glut/os2/glut_bitmap.cpp src/glut/os2/glut_cindex.cpp src/glut/os2/glut_cmap.cpp src/glut/os2/glut_cursor.cpp src/glut/os2/glut_event.cpp src/glut/os2/glut_ext.cpp src/glut/os2/glut_fullscrn.cpp src/glut/os2/glut_gamemode.cpp src/glut/os2/glut_get.cpp src/glut/os2/glut_hel10.cpp src/glut/os2/glut_hel12.cpp src/glut/os2/glut_hel18.cpp src/glut/os2/glut_init.cpp src/glut/os2/glut_input.cpp src/glut/os2/glut_key.cpp src/glut/os2/glut_keyctrl.cpp src/glut/os2/glut_keyup.cpp src/glut/os2/glut_mesa.cpp src/glut/os2/glut_modifier.cpp src/glut/os2/glut_roman.cpp src/glut/os2/glut_shapes.cpp src/glut/os2/glut_stroke.cpp src/glut/os2/glut_swap.cpp src/glut/os2/glut_teapot.cpp src/glut/os2/glut_tr24.cpp src/glut/os2/glut_util.cpp src/glut/os2/glut_vidresize.cpp src/glut/os2/glut_warp.cpp src/glut/os2/glut_win.cpp src/glut/os2/glut_winmisc.cpp src/glut/os2/glutbitmap.h src/glut/os2/glutstroke.h src/glut/os2/layerutil.h src/glut/os2/libGlut.DEF src/glut/os2/os2_glx.cpp src/glut/os2/os2_menu.cpp src/glut/os2/os2_winproc.cpp src/glw/Makefile src/glx/mini/Makefile src/glx/mini/miniglx.c src/glx/x11/glxext.c src/mesa/Makefile src/mesa/drivers/allegro/amesa.c src/mesa/drivers/allegro/direct.h src/mesa/drivers/allegro/generic.h src/mesa/drivers/d3d/D3DCAPS.CPP src/mesa/drivers/d3d/D3DHAL.H src/mesa/drivers/d3d/D3DInit.cpp src/mesa/drivers/d3d/D3DMESA.H src/mesa/drivers/d3d/D3DRaster.cpp src/mesa/drivers/d3d/D3DTEXT.CPP src/mesa/drivers/d3d/D3DTextureMgr.cpp src/mesa/drivers/d3d/D3DTextureMgr.h src/mesa/drivers/d3d/D3DUTILS.CPP src/mesa/drivers/d3d/DDrawPROCS.c src/mesa/drivers/d3d/DEBUG.C src/mesa/drivers/d3d/DEBUG.H src/mesa/drivers/d3d/DbgEnv.bat src/mesa/drivers/d3d/MAKEFILE src/mesa/drivers/d3d/OPENGL32.DEF src/mesa/drivers/d3d/WGL.C src/mesa/drivers/dri/Makefile.template src/mesa/drivers/dri/common/dri_bufmgr.c src/mesa/drivers/dri/common/dri_drmpool.c src/mesa/drivers/dri/common/dri_util.c src/mesa/drivers/dri/common/dri_util.h src/mesa/drivers/dri/common/xmlconfig.c src/mesa/drivers/dri/glcore/Makefile src/mesa/drivers/dri/i915/i915_fragprog.c src/mesa/drivers/dri/i915/i915_program.h src/mesa/drivers/dri/i915/i915_texprog.c src/mesa/drivers/dri/i915/i915_texstate.c src/mesa/drivers/dri/i915/i915_vtbl.c src/mesa/drivers/dri/i915/intel_context.c src/mesa/drivers/dri/i915/intel_context.h src/mesa/drivers/dri/i915/intel_pixel.c src/mesa/drivers/dri/i915/intel_render.c src/mesa/drivers/dri/i915/intel_screen.c src/mesa/drivers/dri/i915/intel_state.c src/mesa/drivers/dri/i915/intel_tex.c src/mesa/drivers/dri/i915/intel_tris.c src/mesa/drivers/dri/i915tex/i830_reg.h src/mesa/drivers/dri/i915tex/i830_texstate.c src/mesa/drivers/dri/i915tex/i830_vtbl.c src/mesa/drivers/dri/i915tex/i915_fragprog.c src/mesa/drivers/dri/i915tex/i915_metaops.c src/mesa/drivers/dri/i915tex/i915_tex_layout.c src/mesa/drivers/dri/i915tex/i915_texstate.c src/mesa/drivers/dri/i915tex/i915_vtbl.c src/mesa/drivers/dri/i915tex/intel_render.c src/mesa/drivers/dri/i915tex/intel_screen.c src/mesa/drivers/dri/i915tex/intel_tris.c src/mesa/drivers/dri/i965/brw_aub.c src/mesa/drivers/dri/i965/brw_aub_playback.c src/mesa/drivers/dri/i965/brw_cc.c src/mesa/drivers/dri/i965/brw_clip.c src/mesa/drivers/dri/i965/brw_clip_state.c src/mesa/drivers/dri/i965/brw_clip_util.c src/mesa/drivers/dri/i965/brw_context.c src/mesa/drivers/dri/i965/brw_curbe.c src/mesa/drivers/dri/i965/brw_defines.h src/mesa/drivers/dri/i965/brw_draw.c src/mesa/drivers/dri/i965/brw_draw_upload.c src/mesa/drivers/dri/i965/brw_eu.h src/mesa/drivers/dri/i965/brw_eu_emit.c src/mesa/drivers/dri/i965/brw_gs_state.c src/mesa/drivers/dri/i965/brw_misc_state.c src/mesa/drivers/dri/i965/brw_sf_emit.c src/mesa/drivers/dri/i965/brw_sf_state.c src/mesa/drivers/dri/i965/brw_state_cache.c src/mesa/drivers/dri/i965/brw_state_pool.c src/mesa/drivers/dri/i965/brw_tex.c src/mesa/drivers/dri/i965/brw_tex_layout.c src/mesa/drivers/dri/i965/brw_vs_state.c src/mesa/drivers/dri/i965/brw_vs_tnl.c src/mesa/drivers/dri/i965/brw_wm.c src/mesa/drivers/dri/i965/brw_wm.h src/mesa/drivers/dri/i965/brw_wm_glsl.c src/mesa/drivers/dri/i965/brw_wm_sampler_state.c src/mesa/drivers/dri/i965/brw_wm_state.c src/mesa/drivers/dri/i965/brw_wm_surface_state.c src/mesa/drivers/dri/i965/bufmgr_fake.c src/mesa/drivers/dri/i965/intel_batchbuffer.c src/mesa/drivers/dri/i965/intel_batchbuffer.h src/mesa/drivers/dri/i965/intel_blit.c src/mesa/drivers/dri/i965/intel_blit.h src/mesa/drivers/dri/i965/intel_buffers.c src/mesa/drivers/dri/i965/intel_context.c src/mesa/drivers/dri/i965/intel_context.h src/mesa/drivers/dri/i965/intel_mipmap_tree.c src/mesa/drivers/dri/i965/intel_mipmap_tree.h src/mesa/drivers/dri/i965/intel_pixel_bitmap.c src/mesa/drivers/dri/i965/intel_pixel_copy.c src/mesa/drivers/dri/i965/intel_screen.c src/mesa/drivers/dri/i965/intel_tex_validate.c src/mesa/drivers/dri/i965/server/i830_common.h src/mesa/drivers/dri/intel/intel_batchbuffer.c src/mesa/drivers/dri/intel/intel_batchbuffer.h src/mesa/drivers/dri/intel/intel_blit.c src/mesa/drivers/dri/intel/intel_buffers.c src/mesa/drivers/dri/intel/intel_context.c src/mesa/drivers/dri/intel/intel_context.h src/mesa/drivers/dri/intel/intel_mipmap_tree.c src/mesa/drivers/dri/intel/intel_mipmap_tree.h src/mesa/drivers/dri/intel/intel_screen.h src/mesa/drivers/dri/r200/r200_texstate.c src/mesa/drivers/dri/r300/r300_cmdbuf.c src/mesa/drivers/dri/r300/r300_context.h src/mesa/drivers/dri/r300/r300_ioctl.c src/mesa/drivers/dri/r300/r300_reg.h src/mesa/drivers/dri/r300/r300_state.c src/mesa/drivers/dri/r300/r300_tex.h src/mesa/drivers/dri/r300/r300_texstate.c src/mesa/drivers/dri/radeon/radeon_screen.c src/mesa/drivers/windows/gdi/wmesa.c src/mesa/drivers/x11/fakeglx.c src/mesa/drivers/x11/xm_dd.c src/mesa/glapi/Makefile src/mesa/glapi/dispatch.h src/mesa/glapi/glapioffsets.h src/mesa/glapi/glapitable.h src/mesa/glapi/glapitemp.h src/mesa/glapi/glprocs.h src/mesa/main/api_validate.c src/mesa/main/attrib.c src/mesa/main/config.h src/mesa/main/context.c src/mesa/main/context.h src/mesa/main/dlist.c src/mesa/main/drawpix.c src/mesa/main/enums.c src/mesa/main/fbobject.c src/mesa/main/image.c src/mesa/main/imports.h src/mesa/main/mtypes.h src/mesa/main/points.c src/mesa/main/state.c src/mesa/main/texcompress_fxt1.c src/mesa/main/texenvprogram.c src/mesa/main/teximage.c src/mesa/main/texobj.c src/mesa/main/texstate.c src/mesa/main/version.h src/mesa/shader/prog_execute.c src/mesa/shader/program.c src/mesa/shader/shader_api.c src/mesa/shader/slang/library/slang_core.gc src/mesa/shader/slang/library/slang_core_gc.h src/mesa/shader/slang/slang_codegen.c src/mesa/sources src/mesa/sparc/glapi_sparc.S src/mesa/swrast/s_aalinetemp.h src/mesa/swrast/s_aatriangle.c src/mesa/swrast/s_aatritemp.h src/mesa/swrast/s_context.c src/mesa/swrast/s_copypix.c src/mesa/swrast/s_drawpix.c src/mesa/swrast/s_fragprog.c src/mesa/swrast/s_pointtemp.h src/mesa/swrast/s_readpix.c src/mesa/swrast/s_span.c src/mesa/swrast/s_texfilter.c src/mesa/swrast/s_tritemp.h src/mesa/swrast/s_zoom.c src/mesa/tnl/t_draw.c src/mesa/tnl/t_vb_fog.c src/mesa/tnl/t_vb_program.c src/mesa/tnl/t_vp_build.c src/mesa/vbo/vbo_split_copy.c src/mesa/x86-64/xform4.S src/mesa/x86/common_x86.c src/mesa/x86/glapi_x86.S windows/VC6/mesa/mesa/mesa.dsp
Diffstat (limited to 'progs/demos/copypix.c')
-rw-r--r--progs/demos/copypix.c248
1 files changed, 248 insertions, 0 deletions
diff --git a/progs/demos/copypix.c b/progs/demos/copypix.c
new file mode 100644
index 00000000000..15001e851be
--- /dev/null
+++ b/progs/demos/copypix.c
@@ -0,0 +1,248 @@
+/**
+ * glCopyPixels test
+ *
+ * Brian Paul
+ * 14 Sep 2007
+ */
+
+
+#define GL_GLEXT_PROTOTYPES
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <GL/glut.h>
+
+#include "readtex.h"
+
+#define IMAGE_FILE "../images/arch.rgb"
+
+static int ImgWidth, ImgHeight;
+static GLenum ImgFormat;
+static GLubyte *Image = NULL;
+
+static int WinWidth = 800, WinHeight = 800;
+static int Xpos, Ypos;
+static int Scissor = 0;
+static float Xzoom, Yzoom;
+static GLboolean DrawFront = GL_FALSE;
+static GLboolean Dither = GL_TRUE;
+
+
+static void Reset( void )
+{
+ Xpos = Ypos = 20;
+ Scissor = 0;
+ Xzoom = Yzoom = 1.0;
+}
+
+
+static void Display( void )
+{
+ const int dx = (WinWidth - ImgWidth) / 2;
+ const int dy = (WinHeight - ImgHeight) / 2;
+
+ if (DrawFront) {
+ glDrawBuffer(GL_FRONT);
+ glReadBuffer(GL_FRONT);
+ }
+ else {
+ glDrawBuffer(GL_BACK);
+ glReadBuffer(GL_BACK);
+ }
+
+ glClear( GL_COLOR_BUFFER_BIT );
+
+ /* draw original image */
+ glWindowPos2iARB(dx, dy);
+ glDrawPixels(ImgWidth, ImgHeight, ImgFormat, GL_UNSIGNED_BYTE, Image);
+
+ if (Scissor)
+ glEnable(GL_SCISSOR_TEST);
+
+ /* draw copy */
+ glPixelZoom(Xzoom, Yzoom);
+ glWindowPos2iARB(Xpos, Ypos);
+ glCopyPixels(dx, dy, ImgWidth, ImgHeight, GL_COLOR);
+ glPixelZoom(1, 1);
+
+ glDisable(GL_SCISSOR_TEST);
+
+ if (DrawFront)
+ glFinish();
+ else
+ glutSwapBuffers();
+}
+
+
+static void Reshape( int width, int height )
+{
+ WinWidth = width;
+ WinHeight = height;
+
+ glViewport( 0, 0, width, height );
+ glMatrixMode( GL_PROJECTION );
+ glLoadIdentity();
+ glOrtho( 0.0, width, 0.0, height, 0.0, 2.0 );
+ glMatrixMode( GL_MODELVIEW );
+ glLoadIdentity();
+
+ glScissor(width/4, height/4, width/2, height/2);
+}
+
+
+static void Key( unsigned char key, int x, int y )
+{
+ (void) x;
+ (void) y;
+ switch (key) {
+ case ' ':
+ Reset();
+ break;
+ case 'd':
+ Dither = !Dither;
+ if (Dither)
+ glEnable(GL_DITHER);
+ else
+ glDisable(GL_DITHER);
+ break;
+ case 's':
+ Scissor = !Scissor;
+ break;
+ case 'x':
+ Xzoom -= 0.1;
+ break;
+ case 'X':
+ Xzoom += 0.1;
+ break;
+ case 'y':
+ Yzoom -= 0.1;
+ break;
+ case 'Y':
+ Yzoom += 0.1;
+ break;
+ case 'f':
+ DrawFront = !DrawFront;
+ printf("glDrawBuffer(%s)\n", DrawFront ? "GL_FRONT" : "GL_BACK");
+ break;
+ case 27:
+ exit(0);
+ break;
+ }
+ glutPostRedisplay();
+}
+
+
+static void SpecialKey( int key, int x, int y )
+{
+ const int step = (glutGetModifiers() & GLUT_ACTIVE_SHIFT) ? 10 : 1;
+ (void) x;
+ (void) y;
+ switch (key) {
+ case GLUT_KEY_UP:
+ Ypos += step;
+ break;
+ case GLUT_KEY_DOWN:
+ Ypos -= step;
+ break;
+ case GLUT_KEY_LEFT:
+ Xpos -= step;
+ break;
+ case GLUT_KEY_RIGHT:
+ Xpos += step;
+ break;
+ }
+ glutPostRedisplay();
+}
+
+
+static void Init( GLboolean ciMode, const char *filename )
+{
+ printf("GL_VERSION = %s\n", (char *) glGetString(GL_VERSION));
+ printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
+
+ Image = LoadRGBImage( filename, &ImgWidth, &ImgHeight, &ImgFormat );
+ if (!Image) {
+ printf("Couldn't read %s\n", filename);
+ exit(0);
+ }
+
+ if (ciMode) {
+ /* Convert RGB image to grayscale */
+ GLubyte *indexImage = (GLubyte *) malloc( ImgWidth * ImgHeight );
+ GLint i;
+ for (i=0; i<ImgWidth*ImgHeight; i++) {
+ int gray = Image[i*3] + Image[i*3+1] + Image[i*3+2];
+ indexImage[i] = gray / 3;
+ }
+ free(Image);
+ Image = indexImage;
+ ImgFormat = GL_COLOR_INDEX;
+
+ for (i=0;i<255;i++) {
+ float g = i / 255.0;
+ glutSetColor(i, g, g, g);
+ }
+ }
+
+ printf("Loaded %d by %d image\n", ImgWidth, ImgHeight );
+
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+ glPixelStorei(GL_UNPACK_ROW_LENGTH, ImgWidth);
+
+ Reset();
+}
+
+
+static void Usage(void)
+{
+ printf("Keys:\n");
+ printf(" SPACE Reset Parameters\n");
+ printf(" Up/Down Move image up/down (SHIFT for large step)\n");
+ printf(" Left/Right Move image left/right (SHIFT for large step)\n");
+ printf(" x Decrease X-axis PixelZoom\n");
+ printf(" X Increase X-axis PixelZoom\n");
+ printf(" y Decrease Y-axis PixelZoom\n");
+ printf(" Y Increase Y-axis PixelZoom\n");
+ printf(" s Toggle GL_SCISSOR_TEST\n");
+ printf(" f Toggle front/back buffer drawing\n");
+ printf(" ESC Exit\n");
+}
+
+
+int main( int argc, char *argv[] )
+{
+ GLboolean ciMode = GL_FALSE;
+ const char *filename = IMAGE_FILE;
+ int i = 1;
+
+ if (argc > i && strcmp(argv[i], "-ci")==0) {
+ ciMode = GL_TRUE;
+ i++;
+ }
+ if (argc > i) {
+ filename = argv[i];
+ }
+
+ glutInit( &argc, argv );
+ glutInitWindowPosition( 0, 0 );
+ glutInitWindowSize( WinWidth, WinHeight );
+
+ if (ciMode)
+ glutInitDisplayMode( GLUT_INDEX | GLUT_DOUBLE );
+ else
+ glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE);
+
+ glutCreateWindow(argv[0]);
+
+ Init(ciMode, filename);
+ Usage();
+
+ glutReshapeFunc( Reshape );
+ glutKeyboardFunc( Key );
+ glutSpecialFunc( SpecialKey );
+ glutDisplayFunc( Display );
+
+ glutMainLoop();
+ return 0;
+}