Merge commit 'origin/gallium-0.1' into gallium-0.2

11 files changed, 447 insertions, 17 deletions

diff --git a/progs/trivial/Makefile b/progs/trivial/Makefile
index 40ee5e81c4..f7bfd1f039 100644
--- a/progs/trivial/Makefile
+++ b/progs/trivial/Makefile
@@ -77,6 +77,7 @@ SOURCES = \
 	quadstrip-flat.c \
 	quadstrip.c \
 	tri-alpha.c \
+	tri-array-interleaved.c \
 	tri-blend-color.c \
 	tri-blend-max.c \
 	tri-blend-min.c \
@@ -102,6 +103,7 @@ SOURCES = \
 	tri-repeat.c \
 	tri-scissor-tri.c \
 	tri-stencil.c \
+	tri-stipple.c \
 	tri-tex.c \
 	tri-tex-3d.c \
 	tri-tri.c \
diff --git a/progs/trivial/tri-array-interleaved.c b/progs/trivial/tri-array-interleaved.c
new file mode 100644
index 0000000000..e40e69266e
--- /dev/null
+++ b/progs/trivial/tri-array-interleaved.c
@@ -0,0 +1,119 @@
+/* Test rebasing */
+
+#include <assert.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#define GL_GLEXT_PROTOTYPES
+#include <GL/glut.h>
+
+struct {
+   GLubyte color[4];
+   GLfloat vert[3];
+} verts[] = {
+
+   { { 0x00, 0x00, 0xff, 0x00 },
+     {  0.9, -0.9, 0.0 } },
+
+   { { 0x00, 0xff, 0x00, 0x00 },
+     {  0.9,  0.9, 0.0 } },
+
+   { { 0xff, 0x00, 0x00, 0x00 },
+     { -0.9,  0.9, 0.0 } },
+
+   { { 0xff, 0xff, 0xff, 0x00 },
+     { -0.9, -0.9, 0.0 } },
+};
+
+GLuint indices[] = { 1, 2, 3 };
+
+static void Init( void )
+{
+   GLint errno;
+   GLuint prognum;
+   
+   static const char *prog1 =
+      "!!ARBvp1.0\n"
+      "MOV  result.color, vertex.color;\n"
+      "MOV  result.position, vertex.position;\n"
+      "END\n";
+
+   glGenProgramsARB(1, &prognum);
+   glBindProgramARB(GL_VERTEX_PROGRAM_ARB, prognum);
+   glProgramStringARB(GL_VERTEX_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
+		      strlen(prog1), (const GLubyte *) prog1);
+
+   assert(glIsProgramARB(prognum));
+   errno = glGetError();
+   printf("glGetError = %d\n", errno);
+   if (errno != GL_NO_ERROR)
+   {
+      GLint errorpos;
+
+      glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &errorpos);
+      printf("errorpos: %d\n", errorpos);
+      printf("%s\n", (char *)glGetString(GL_PROGRAM_ERROR_STRING_ARB));
+   }
+
+   glInterleavedArrays( GL_C4UB_V3F, sizeof(verts[0]), verts );
+}
+
+
+
+static void Display( void )
+{
+   glClearColor(0.3, 0.3, 0.3, 1);
+   glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
+
+   glEnable(GL_VERTEX_PROGRAM_NV);
+
+   /* Should have min_index == 1, maybe force a rebase:
+    */
+   glDrawElements( GL_TRIANGLES, 3, GL_UNSIGNED_INT, indices );
+
+   glFlush(); 
+}
+
+
+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, -0.5, 1000.0);
+   glMatrixMode( GL_MODELVIEW );
+   glLoadIdentity();
+   /*glTranslatef( 0.0, 0.0, -15.0 );*/
+}
+
+
+static void Key( unsigned char key, int x, int y )
+{
+   (void) x;
+   (void) y;
+   switch (key) {
+      case 27:
+         exit(0);
+         break;
+   }
+   glutPostRedisplay();
+}
+
+
+
+
+int main( int argc, char *argv[] )
+{
+   glutInit( &argc, argv );
+   glutInitWindowPosition( 0, 0 );
+   glutInitWindowSize( 250, 250 );
+   glutInitDisplayMode( GLUT_RGB | GLUT_SINGLE | GLUT_DEPTH );
+   glutCreateWindow(argv[0]);
+   glutReshapeFunc( Reshape );
+   glutKeyboardFunc( Key );
+   glutDisplayFunc( Display );
+   Init();
+   glutMainLoop();
+   return 0;
+}
diff --git a/progs/trivial/tri-stipple.c b/progs/trivial/tri-stipple.c
new file mode 100644
index 0000000000..887de550e2
--- /dev/null
+++ b/progs/trivial/tri-stipple.c
@@ -0,0 +1,151 @@
+/*
+ * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and
+ * its documentation for any purpose is hereby granted without fee, provided
+ * that (i) the above copyright notices and this permission notice appear in
+ * all copies of the software and related documentation, and (ii) the name of
+ * Silicon Graphics may not be used in any advertising or
+ * publicity relating to the software without the specific, prior written
+ * permission of Silicon Graphics.
+ *
+ * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF
+ * ANY KIND,
+ * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
+ * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR
+ * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
+ * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+ * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
+ * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+ * OF THIS SOFTWARE.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <GL/glut.h>
+
+
+#define CI_OFFSET_1 16
+#define CI_OFFSET_2 32
+
+static GLubyte fly[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x03, 0x80, 0x01, 0xC0, 0x06, 0xC0, 0x03, 0x60, 0x04, 0x60, 0x06, 0x20,
+0x04, 0x30, 0x0C, 0x20, 0x04, 0x18, 0x18, 0x20, 0x04, 0x0C, 0x30, 0x20,
+0x04, 0x06, 0x60, 0x20, 0x44, 0x03, 0xC0, 0x22, 0x44, 0x01, 0x80, 0x22,
+0x44, 0x01, 0x80, 0x22, 0x44, 0x01, 0x80, 0x22, 0x44, 0x01, 0x80, 0x22,
+0x44, 0x01, 0x80, 0x22, 0x44, 0x01, 0x80, 0x22, 0x66, 0x01, 0x80, 0x66,
+0x33, 0x01, 0x80, 0xCC, 0x19, 0x81, 0x81, 0x98, 0x0C, 0xC1, 0x83, 0x30,
+0x07, 0xe1, 0x87, 0xe0, 0x03, 0x3f, 0xfc, 0xc0, 0x03, 0x31, 0x8c, 0xc0,
+0x03, 0x33, 0xcc, 0xc0, 0x06, 0x64, 0x26, 0x60, 0x0c, 0xcc, 0x33, 0x30,
+0x18, 0xcc, 0x33, 0x18, 0x10, 0xc4, 0x23, 0x08, 0x10, 0x63, 0xC6, 0x08,
+0x10, 0x30, 0x0c, 0x08, 0x10, 0x18, 0x18, 0x08, 0x10, 0x00, 0x00, 0x08};
+
+
+GLenum doubleBuffer;
+
+static void Init(void)
+{
+   fprintf(stderr, "GL_RENDERER   = %s\n", (char *) glGetString(GL_RENDERER));
+   fprintf(stderr, "GL_VERSION    = %s\n", (char *) glGetString(GL_VERSION));
+   fprintf(stderr, "GL_VENDOR     = %s\n", (char *) glGetString(GL_VENDOR));
+
+    glEnable (GL_POLYGON_STIPPLE);
+    glPolygonStipple (fly);
+
+    glClearColor(0.0, 0.0, 1.0, 0.0);
+}
+
+static void Reshape(int width, int height)
+{
+
+    glViewport(0, 0, (GLint)width, (GLint)height);
+
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+/*     glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); */
+    glMatrixMode(GL_MODELVIEW);
+}
+
+static void Key(unsigned char key, int x, int y)
+{
+
+    switch (key) {
+      case 27:
+	exit(1);
+      default:
+	return;
+    }
+
+    glutPostRedisplay();
+}
+
+static void Draw(void)
+{
+   glClear(GL_COLOR_BUFFER_BIT); 
+
+   glBegin(GL_TRIANGLES);
+   glColor3f(0,0,.7); 
+   glVertex3f( 0.9, -0.9, -0.0);
+   glColor3f(.8,0,0); 
+   glVertex3f( 0.9,  0.9, -0.0);
+   glColor3f(0,.9,0); 
+   glVertex3f(-0.9,  0.0, -0.0);
+   glEnd();
+
+   glFlush();
+
+   if (doubleBuffer) {
+      glutSwapBuffers();
+   }
+}
+
+static GLenum Args(int argc, char **argv)
+{
+    GLint i;
+
+    doubleBuffer = GL_FALSE;
+
+    for (i = 1; i < argc; i++) {
+        if (strcmp(argv[i], "-sb") == 0) {
+	    doubleBuffer = GL_FALSE;
+	} else if (strcmp(argv[i], "-db") == 0) {
+	    doubleBuffer = 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;
+
+    glutInit(&argc, argv);
+
+    if (Args(argc, argv) == GL_FALSE) {
+	exit(1);
+    }
+
+    glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
+
+    type = GLUT_RGB | GLUT_ALPHA;
+    type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE;
+    glutInitDisplayMode(type);
+
+    if (glutCreateWindow("First Tri") == GL_FALSE) {
+	exit(1);
+    }
+
+    Init();
+
+    glutReshapeFunc(Reshape);
+    glutKeyboardFunc(Key);
+    glutDisplayFunc(Draw);
+    glutMainLoop();
+	return 0;
+}
diff --git a/src/gallium/auxiliary/draw/draw_context.c b/src/gallium/auxiliary/draw/draw_context.c
index b2a34811c2..7bd4a2e221 100644
--- a/src/gallium/auxiliary/draw/draw_context.c
+++ b/src/gallium/auxiliary/draw/draw_context.c
@@ -103,6 +103,18 @@ void draw_flush( struct draw_context *draw )
 }
 
 
+/**
+ * Specify the Minimum Resolvable Depth factor for polygon offset.
+ * This factor potentially depends on the number of Z buffer bits,
+ * the rasterization algorithm and the arithmetic performed on Z
+ * values between vertex shading and rasterization.  It will vary
+ * from one driver to another.
+ */
+void draw_set_mrd(struct draw_context *draw, double mrd)
+{
+   draw->mrd = mrd;
+}
+
 
 /**
  * Register new primitive rasterization/rendering state.
@@ -377,7 +389,7 @@ draw_set_mapped_element_buffer_range( struct draw_context *draw,
                                       unsigned eltSize,
                                       unsigned min_index,
                                       unsigned max_index,
-                                      void *elements )
+                                      const void *elements )
 {
    draw->pt.user.elts = elements;
    draw->pt.user.eltSize = eltSize;
@@ -389,7 +401,7 @@ draw_set_mapped_element_buffer_range( struct draw_context *draw,
 void
 draw_set_mapped_element_buffer( struct draw_context *draw,
                                 unsigned eltSize,
-                                void *elements )
+                                const void *elements )
 {
    draw->pt.user.elts = elements;
    draw->pt.user.eltSize = eltSize;
diff --git a/src/gallium/auxiliary/draw/draw_context.h b/src/gallium/auxiliary/draw/draw_context.h
index 8f5cecf438..d529e4e9a2 100644
--- a/src/gallium/auxiliary/draw/draw_context.h
+++ b/src/gallium/auxiliary/draw/draw_context.h
@@ -72,6 +72,7 @@ void draw_enable_line_stipple(struct draw_context *draw, boolean enable);
 
 void draw_enable_point_sprites(struct draw_context *draw, boolean enable);
 
+void draw_set_mrd(struct draw_context *draw, double mrd);
 
 boolean
 draw_install_aaline_stage(struct draw_context *draw, struct pipe_context *pipe);
@@ -129,11 +130,11 @@ draw_set_mapped_element_buffer_range( struct draw_context *draw,
                                       unsigned eltSize,
                                       unsigned min_index,
                                       unsigned max_index,
-                                      void *elements );
+                                      const void *elements );
 
 void draw_set_mapped_element_buffer( struct draw_context *draw,
                                      unsigned eltSize, 
-                                     void *elements );
+                                     const void *elements );
 
 void draw_set_mapped_vertex_buffer(struct draw_context *draw,
                                    unsigned attr, const void *buffer);
diff --git a/src/gallium/auxiliary/draw/draw_pipe_offset.c b/src/gallium/auxiliary/draw/draw_pipe_offset.c
index 1fea5e6dcb..8ddc4ee617 100644
--- a/src/gallium/auxiliary/draw/draw_pipe_offset.c
+++ b/src/gallium/auxiliary/draw/draw_pipe_offset.c
@@ -122,9 +122,8 @@ static void offset_first_tri( struct draw_stage *stage,
 			      struct prim_header *header )
 {
    struct offset_stage *offset = offset_stage(stage);
-   float mrd = 1.0f / 65535.0f; /* XXX this depends on depthbuffer bits! */
 
-   offset->units = stage->draw->rasterizer->offset_units * mrd;
+   offset->units = stage->draw->rasterizer->offset_units * stage->draw->mrd;
    offset->scale = stage->draw->rasterizer->offset_scale;
 
    stage->tri = offset_tri;
diff --git a/src/gallium/auxiliary/draw/draw_private.h b/src/gallium/auxiliary/draw/draw_private.h
index 6097fff2c6..81e4eae401 100644
--- a/src/gallium/auxiliary/draw/draw_private.h
+++ b/src/gallium/auxiliary/draw/draw_private.h
@@ -172,6 +172,8 @@ struct draw_context
 
    boolean force_passthrough; /**< never clip or shade */
 
+   double mrd;  /**< minimum resolvable depth value, for polygon offset */
+
    /* pipe state that we need: */
    const struct pipe_rasterizer_state *rasterizer;
    struct pipe_viewport_state viewport;
diff --git a/src/gallium/auxiliary/util/u_prim.h b/src/gallium/auxiliary/util/u_prim.h
new file mode 100644
index 0000000000..e45e84ded2
--- /dev/null
+++ b/src/gallium/auxiliary/util/u_prim.h
@@ -0,0 +1,122 @@
+/**************************************************************************
+ *
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, 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 NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS 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.
+ *
+ **************************************************************************/
+
+
+#ifndef U_BLIT_H
+#define U_BLIT_H
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "pipe/p_defines.h"
+
+static INLINE boolean u_validate_pipe_prim( unsigned pipe_prim, unsigned nr )
+{
+   boolean ok = TRUE;
+
+   switch (pipe_prim) {
+   case PIPE_PRIM_POINTS:
+      ok = (nr >= 1);
+      break;
+   case PIPE_PRIM_LINES:
+      ok = (nr >= 2);
+      break;
+   case PIPE_PRIM_LINE_STRIP:
+   case PIPE_PRIM_LINE_LOOP:
+      ok = (nr >= 2);
+      break;
+   case PIPE_PRIM_TRIANGLES:
+      ok = (nr >= 3);
+      break;
+   case PIPE_PRIM_TRIANGLE_STRIP:
+   case PIPE_PRIM_TRIANGLE_FAN:
+   case PIPE_PRIM_POLYGON:
+      ok = (nr >= 3);
+      break;
+   case PIPE_PRIM_QUADS:
+      ok = (nr >= 4);
+      break;
+   case PIPE_PRIM_QUAD_STRIP:
+      ok = (nr >= 4);
+      break;
+   default:
+      ok = 0;
+      break;
+   }
+
+   return ok;
+}
+
+
+static INLINE boolean u_trim_pipe_prim( unsigned pipe_prim, unsigned *nr )
+{
+   boolean ok = TRUE;
+
+   switch (pipe_prim) {
+   case PIPE_PRIM_POINTS:
+      ok = (*nr >= 1);
+      break;
+   case PIPE_PRIM_LINES:
+      ok = (*nr >= 2);
+      *nr -= (*nr % 2);
+      break;
+   case PIPE_PRIM_LINE_STRIP:
+   case PIPE_PRIM_LINE_LOOP:
+      ok = (*nr >= 2);
+      break;
+   case PIPE_PRIM_TRIANGLES:
+      ok = (*nr >= 3);
+      *nr -= (*nr % 3);
+      break;
+   case PIPE_PRIM_TRIANGLE_STRIP:
+   case PIPE_PRIM_TRIANGLE_FAN:
+   case PIPE_PRIM_POLYGON:
+      ok = (*nr >= 3);
+      break;
+   case PIPE_PRIM_QUADS:
+      ok = (*nr >= 4);
+      *nr -= (*nr % 4);
+      break;
+   case PIPE_PRIM_QUAD_STRIP:
+      ok = (*nr >= 4);
+      *nr -= (*nr % 2);
+      break;
+   default:
+      ok = 0;
+      break;
+   }
+
+   if (!ok)
+      *nr = 0;
+
+   return ok;
+}
+
+
+#endif
diff --git a/src/gallium/drivers/softpipe/sp_state_surface.c b/src/gallium/drivers/softpipe/sp_state_surface.c
index ba8c9eece7..8877b18af9 100644
--- a/src/gallium/drivers/softpipe/sp_state_surface.c
+++ b/src/gallium/drivers/softpipe/sp_state_surface.c
@@ -101,6 +101,26 @@ softpipe_set_framebuffer_state(struct pipe_context *pipe,
    }
 #endif
 
+   /* Tell draw module how deep the Z/depth buffer is */
+   {
+      int depth_bits;
+      double mrd;
+      if (sp->framebuffer.zsbuf) {
+         depth_bits = pf_get_component_bits(sp->framebuffer.zsbuf->format,
+                                            PIPE_FORMAT_COMP_Z);
+      }
+      else {
+         depth_bits = 0;
+      }
+      if (depth_bits > 16) {
+         mrd = 0.0000001;
+      }
+      else {
+         mrd = 0.00002;
+      }
+      draw_set_mrd(sp->draw, mrd);
+   }
+
    sp->framebuffer.width = fb->width;
    sp->framebuffer.height = fb->height;
 
diff --git a/src/gallium/winsys/xlib/fakeglx.c b/src/gallium/winsys/xlib/fakeglx.c
index 2c0075e934..a56e63572a 100644
--- a/src/gallium/winsys/xlib/fakeglx.c
+++ b/src/gallium/winsys/xlib/fakeglx.c
@@ -419,7 +419,7 @@ static XMesaVisual
 create_glx_visual( Display *dpy, XVisualInfo *visinfo )
 {
    int vislevel;
-   GLint zBits = 24; /*default_depth_bits();*/
+   GLint zBits = default_depth_bits();
    GLint accBits = default_accum_bits();
    GLboolean alphaFlag = default_alpha_bits() > 0;
 
@@ -1289,7 +1289,7 @@ choose_visual( Display *dpy, int screen, const int *list, GLboolean fbConfig )
          double_flag = GL_TRUE;
          if (vis->depth > 8)
             rgb_flag = GL_TRUE;
-         depth_size = 24; /*default_depth_bits();*/
+         depth_size = default_depth_bits();
          stencil_size = STENCIL_BITS;
          /* XXX accum??? */
       }
diff --git a/src/mesa/state_tracker/st_framebuffer.c b/src/mesa/state_tracker/st_framebuffer.c
index 6fd731d209..aaa7d42ae0 100644
--- a/src/mesa/state_tracker/st_framebuffer.c
+++ b/src/mesa/state_tracker/st_framebuffer.c
@@ -286,15 +286,17 @@ st_notify_swapbuffers_complete(struct st_framebuffer *stfb)
 
    if (ctx && ctx->DrawBuffer == &stfb->Base) {
       struct st_renderbuffer *strb;
-      int i;
-
-      for (i = 0; i < BUFFER_COUNT; i++) {
-	 if (stfb->Base.Attachment[i].Renderbuffer) {
-	    strb = st_renderbuffer(stfb->Base.Attachment[i].Renderbuffer);
-            if (strb->surface)
-               strb->surface->status = PIPE_SURFACE_STATUS_UNDEFINED;
-	 }
-      }
+
+      /* Mark back color buffers as undefined */
+      strb = st_renderbuffer(stfb->Base.Attachment[BUFFER_BACK_LEFT].
+                             Renderbuffer);
+      if (strb && strb->surface)
+         strb->surface->status = PIPE_SURFACE_STATUS_UNDEFINED;
+
+      strb = st_renderbuffer(stfb->Base.Attachment[BUFFER_BACK_RIGHT].
+                             Renderbuffer);
+      if (strb && strb->surface)
+         strb->surface->status = PIPE_SURFACE_STATUS_UNDEFINED;
    }
 }