Merge branch 'master' of ssh://git.freedesktop.org/git/mesa/mesa into pipe-video

Conflicts:
	src/gallium/auxiliary/Makefile
	src/gallium/auxiliary/SConscript
	src/gallium/auxiliary/util/u_format.csv
	src/gallium/auxiliary/vl/vl_compositor.c
	src/gallium/auxiliary/vl/vl_compositor.h
	src/gallium/auxiliary/vl/vl_mpeg12_mc_renderer.c
	src/gallium/auxiliary/vl/vl_mpeg12_mc_renderer.h
	src/gallium/drivers/identity/id_objects.c
	src/gallium/drivers/identity/id_objects.h
	src/gallium/drivers/identity/id_screen.c
	src/gallium/drivers/nv40/Makefile
	src/gallium/drivers/nv40/nv40_screen.c
	src/gallium/drivers/softpipe/sp_texture.c
	src/gallium/drivers/softpipe/sp_texture.h
	src/gallium/drivers/softpipe/sp_video_context.c
	src/gallium/drivers/softpipe/sp_video_context.h
	src/gallium/include/pipe/p_format.h
	src/gallium/include/pipe/p_screen.h
	src/gallium/include/pipe/p_video_context.h
	src/gallium/include/pipe/p_video_state.h
	src/gallium/include/state_tracker/dri1_api.h
	src/gallium/include/state_tracker/drm_api.h
	src/gallium/state_trackers/dri/common/dri_context.c
	src/gallium/state_trackers/xorg/xvmc/attributes.c
	src/gallium/state_trackers/xorg/xvmc/block.c
	src/gallium/state_trackers/xorg/xvmc/context.c
	src/gallium/state_trackers/xorg/xvmc/subpicture.c
	src/gallium/state_trackers/xorg/xvmc/surface.c
	src/gallium/state_trackers/xorg/xvmc/tests/.gitignore
	src/gallium/state_trackers/xorg/xvmc/tests/Makefile
	src/gallium/state_trackers/xorg/xvmc/xvmc_private.h
	src/gallium/winsys/drm/radeon/core/radeon_drm.c
	src/gallium/winsys/g3dvl/vl_winsys.h
	src/gallium/winsys/g3dvl/xlib/xsp_winsys.c
	src/gallium/winsys/sw/Makefile

1 files changed, 234 insertions, 0 deletions

diff --git a/progs/trivial/clear-fbo-scissor.c b/progs/trivial/clear-fbo-scissor.c
new file mode 100644
index 00000000000..6a605e16a8b
--- /dev/null
+++ b/progs/trivial/clear-fbo-scissor.c
@@ -0,0 +1,234 @@
+/*
+ * Use scissor to clear the four quadrants of the FBO to different
+ * colors.  Then draw a grey triangle in the middle.
+ */
+
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <string.h>
+#include <GL/glew.h>
+#include <GL/glut.h>
+#include <GL/glu.h>
+
+
+static int Width = 512, Height = 512;
+static GLuint MyFB, MyRB;
+static GLboolean UseTex = GL_FALSE;
+static GLboolean UseCopyPix = GL_FALSE;
+
+
+#define CheckError() \
+   do { \
+      GLenum err = glGetError(); \
+      if (err != GL_NO_ERROR) \
+         printf("Error: %s\n", gluErrorString(err)); \
+      assert(err == GL_NO_ERROR); \
+   } while (0)
+
+
+static void
+Init(void)
+{
+   GLenum status;
+
+   fprintf(stderr, "GL_RENDERER   = %s\n", (char *) glGetString(GL_RENDERER));
+   fprintf(stderr, "GL_VERSION    = %s\n", (char *) glGetString(GL_VERSION));
+   fprintf(stderr, "GL_VENDOR     = %s\n", (char *) glGetString(GL_VENDOR));
+   fflush(stderr);
+
+   if (!glutExtensionSupported("GL_EXT_framebuffer_object")) {
+      printf("GL_EXT_framebuffer_object not found!\n");
+      exit(0);
+   }
+
+   glGenFramebuffersEXT(1, &MyFB);
+   glGenRenderbuffersEXT(1, &MyRB);
+
+   glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, MyFB);
+
+   if (UseTex) {
+      GLuint tex;
+      glGenTextures(1, &tex);
+      glBindTexture(GL_TEXTURE_2D, tex);
+      glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, Width, Height, 0,
+                   GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+      glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT, 
+                                GL_COLOR_ATTACHMENT0_EXT,
+                                GL_TEXTURE_2D, tex, 0);
+   }
+   else {
+      glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, MyRB);
+
+      glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT,
+                                   GL_COLOR_ATTACHMENT0_EXT,
+                                   GL_RENDERBUFFER_EXT, MyRB);
+
+      glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_RGB, Width, Height);
+   }
+
+   status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
+   if (status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+      fprintf(stderr, "Framebuffer object is incomplete (0x%x)!\n", status);
+   }
+
+   glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
+}
+
+
+static void
+Reshape(int width, int height)
+{
+   glViewport(0, 0, width, height);
+   glMatrixMode(GL_PROJECTION);
+   glLoadIdentity();
+   glOrtho(-1.0, 1.0, -1.0, 1.0, -1.0, 1.0);
+   glMatrixMode(GL_MODELVIEW);
+
+   Width = width;
+   Height = height;
+   if (!UseTex) {
+      glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_RGB, Width, Height);
+   }
+}
+
+
+static void
+Key(unsigned char key, int x, int y)
+{
+   if (key == 27) {
+      exit(0);
+   }
+   glutPostRedisplay();
+}
+
+
+static void
+Draw(void)
+{
+   GLboolean scissor = GL_TRUE;
+
+   /* draw to user framebuffer */
+   glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, MyFB);
+   glDrawBuffer(GL_COLOR_ATTACHMENT0_EXT);
+   glReadBuffer(GL_COLOR_ATTACHMENT0_EXT);
+
+   glViewport(0, 0, Width, Height);
+   CheckError();
+
+   if (scissor) {
+      glEnable(GL_SCISSOR_TEST);
+
+      /* lower-left = red */
+      glClearColor(1, 0, 0, 0);
+      glScissor(0, 0, Width / 2, Height / 2);
+      glClear(GL_COLOR_BUFFER_BIT); 
+
+      /* lower-right = green */
+      glClearColor(0, 1, 0, 0);
+      glScissor(Width / 2, 0, Width - Width / 2, Height / 2);
+      glClear(GL_COLOR_BUFFER_BIT); 
+
+      /* upper-left = blue */
+      glClearColor(0, 0, 1, 0);
+      glScissor(0, Height / 2, Width / 2, Height - Height / 2);
+      glClear(GL_COLOR_BUFFER_BIT); 
+
+      /* upper-right = white */
+      glClearColor(1, 1, 1, 0);
+      glScissor(Width / 2, Height / 2, Width - Width / 2, Height - Height / 2);
+      glClear(GL_COLOR_BUFFER_BIT); 
+
+      glDisable(GL_SCISSOR_TEST);
+   }
+   else {
+      glClearColor(0, 1, 0, 0);
+      glClear(GL_COLOR_BUFFER_BIT);
+   }
+
+   CheckError();
+
+   /* gray triangle in middle, pointing up */
+   glColor3f(0.5, 0.5, 0.5);
+   glBegin(GL_TRIANGLES);
+   glVertex2f(Width/4, Height/4);
+   glVertex2f(Width*3/4, Height/4);
+   glVertex2f(Width/2, Height*3/4);
+   glVertex2f(-0.5, -0.5);
+   glVertex2f(+0.5, -0.5);
+   glVertex2f( 0.0, 0.7);
+   glEnd();
+
+   CheckError();
+
+   /* copy fbo to window */
+   glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, MyFB);
+   glReadBuffer(GL_COLOR_ATTACHMENT0_EXT);
+   glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, 0);
+   glDrawBuffer(GL_BACK);
+   
+   if (UseCopyPix) {
+      glWindowPos2i(0, 0);
+      glCopyPixels(0, 0, Width, Height, GL_COLOR);
+   }
+   else {
+      GLubyte *buffer = malloc(Width * Height * 4);
+
+      /* read from user framebuffer */
+      glReadPixels(0, 0, Width, Height, GL_RGBA, GL_UNSIGNED_BYTE, buffer);
+
+      /* draw to window */
+      glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
+      glWindowPos2iARB(0, 0);
+      glDrawPixels(Width, Height, GL_RGBA, GL_UNSIGNED_BYTE, buffer);
+
+      free(buffer);
+   }
+
+   /* Bind normal framebuffer */
+   glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
+
+   glutSwapBuffers();
+
+   CheckError();
+}
+
+
+int
+main(int argc, char *argv[])
+{
+   int i;
+
+   glutInit(&argc, argv);
+   glutInitWindowPosition(100, 0);
+   glutInitWindowSize(Width, Height);
+   glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
+
+   for (i = 1; i < argc; i++) {
+      if (strcmp(argv[i], "-t") == 0)
+         UseTex = GL_TRUE;
+      else if (strcmp(argv[i], "-c") == 0)
+         UseCopyPix = GL_TRUE;
+   }
+
+   if (UseTex)
+      printf("Using render to texture\n");
+   else
+      printf("Using user-created render buffer\n");
+
+   if (!glutCreateWindow(argv[0])) {
+      exit(1);
+   }
+
+   glewInit();
+   Init();
+   glutReshapeFunc(Reshape);
+   glutKeyboardFunc(Key);
+   glutDisplayFunc(Draw);
+   glutMainLoop();
+   return 0;
+}