X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fmain%2Fdrawpix.c;h=13cfa0e756e28d2573c6c3e5c71530731fd47f5a;hb=0397b2bb41b0f337af2949a15bcd7d0e7e8a7dc1;hp=d46ace0a65586659ccf393b73c3375e61aa0fc13;hpb=33143303feaf84afbef2e63ac0adab2d70b3c344;p=mesa.git

diff --git a/src/mesa/main/drawpix.c b/src/mesa/main/drawpix.c
index d46ace0a655..13cfa0e756e 100644
--- a/src/mesa/main/drawpix.c
+++ b/src/mesa/main/drawpix.c
@@ -1,10 +1,8 @@
-/* $Id: drawpix.c,v 1.52 2001/04/10 15:25:45 brianp Exp $ */
-
 /*
  * Mesa 3-D graphics library
- * Version:  3.5
+ * Version:  7.1
  *
- * Copyright (C) 1999-2001  Brian Paul   All Rights Reserved.
+ * Copyright (C) 1999-2008  Brian Paul   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"),
@@ -24,77 +22,306 @@
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
-
-#ifdef PC_HEADER
-#include "all.h"
-#else
 #include "glheader.h"
-#include "colormac.h"
+#include "imports.h"
+#include "bufferobj.h"
 #include "context.h"
 #include "drawpix.h"
 #include "feedback.h"
-#include "macros.h"
-#include "mem.h"
-#include "mmath.h"
+#include "framebuffer.h"
+#include "image.h"
+#include "readpix.h"
 #include "state.h"
-#include "mtypes.h"
-#endif
-
-
 
 
+#if _HAVE_FULL_GL
 
 /*
  * Execute glDrawPixels
  */
-void
+void GLAPIENTRY
 _mesa_DrawPixels( GLsizei width, GLsizei height,
                   GLenum format, GLenum type, const GLvoid *pixels )
 {
    GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
 
-   if (ctx->RenderMode==GL_RENDER) {
-      GLint x, y;
-      if (!pixels || !ctx->Current.RasterPosValid) {
-	 return;
-      }
+   if (width < 0 || height < 0) {
+      _mesa_error( ctx, GL_INVALID_VALUE, "glDrawPixels(width or height < 0" );
+      return;
+   }
 
-      if (ctx->NewState) {
-         _mesa_update_state(ctx);
-      }
+   if (ctx->NewState) {
+      _mesa_update_state(ctx);
+   }
+
+   if (ctx->FragmentProgram.Enabled && !ctx->FragmentProgram._Enabled) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "glDrawPixels (invalid fragment program)");
+      return;
+   }
+
+   if (_mesa_error_check_format_type(ctx, format, type, GL_TRUE)) {
+      /* found an error */
+      return;
+   }
+
+   if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+      _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
+                  "glDrawPixels(incomplete framebuffer)" );
+      return;
+   }
+
+   if (!ctx->Current.RasterPosValid) {
+      return;
+   }
+
+   if (ctx->RenderMode == GL_RENDER) {
+      /* Round, to satisfy conformance tests (matches SGI's OpenGL) */
+      GLint x = IROUND(ctx->Current.RasterPos[0]);
+      GLint y = IROUND(ctx->Current.RasterPos[1]);
 
-      x = IROUND(ctx->Current.RasterPos[0]);
-      y = IROUND(ctx->Current.RasterPos[1]);
+      if (ctx->Unpack.BufferObj->Name) {
+         /* unpack from PBO */
+         if (!_mesa_validate_pbo_access(2, &ctx->Unpack, width, height, 1,
+                                        format, type, pixels)) {
+            _mesa_error(ctx, GL_INVALID_OPERATION,
+                        "glDrawPixels(invalid PBO access)");
+            return;
+         }
+         if (ctx->Unpack.BufferObj->Pointer) {
+            /* buffer is mapped - that's an error */
+            _mesa_error(ctx, GL_INVALID_OPERATION,
+                        "glDrawPixels(PBO is mapped)");
+            return;
+         }
+      }
 
-      ctx->OcclusionResult = GL_TRUE;
       ctx->Driver.DrawPixels(ctx, x, y, width, height, format, type,
 			     &ctx->Unpack, pixels);
    }
-   else if (ctx->RenderMode==GL_FEEDBACK) {
-      if (ctx->Current.RasterPosValid) {
-         GLfloat color[4];
-	 GLfloat texcoord[4], invq;
-
-	 FLUSH_CURRENT(ctx, 0);
-         color[0] = CHAN_TO_FLOAT(ctx->Current.Color[0]);
-         color[1] = CHAN_TO_FLOAT(ctx->Current.Color[1]);
-         color[2] = CHAN_TO_FLOAT(ctx->Current.Color[2]);
-         color[3] = CHAN_TO_FLOAT(ctx->Current.Color[3]);
-         invq = 1.0F / ctx->Current.Texcoord[0][3];
-         texcoord[0] = ctx->Current.Texcoord[0][0] * invq;
-         texcoord[1] = ctx->Current.Texcoord[0][1] * invq;
-         texcoord[2] = ctx->Current.Texcoord[0][2] * invq;
-         texcoord[3] = ctx->Current.Texcoord[0][3];
-         FEEDBACK_TOKEN( ctx, (GLfloat) (GLint) GL_DRAW_PIXEL_TOKEN );
-         _mesa_feedback_vertex( ctx,
+   else if (ctx->RenderMode == GL_FEEDBACK) {
+      /* Feedback the current raster pos info */
+      FLUSH_CURRENT( ctx, 0 );
+      FEEDBACK_TOKEN( ctx, (GLfloat) (GLint) GL_DRAW_PIXEL_TOKEN );
+      _mesa_feedback_vertex( ctx,
                              ctx->Current.RasterPos,
-                             color, ctx->Current.Index, texcoord );
-      }
+                             ctx->Current.RasterColor,
+                             ctx->Current.RasterIndex,
+                             ctx->Current.RasterTexCoords[0] );
+   }
+   else {
+      ASSERT(ctx->RenderMode == GL_SELECT);
+      /* Do nothing.  See OpenGL Spec, Appendix B, Corollary 6. */
+   }
+}
+
+
+void GLAPIENTRY
+_mesa_CopyPixels( GLint srcx, GLint srcy, GLsizei width, GLsizei height,
+                  GLenum type )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+   if (ctx->NewState) {
+      _mesa_update_state(ctx);
+   }
+
+   if (ctx->FragmentProgram.Enabled && !ctx->FragmentProgram._Enabled) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "glCopyPixels (invalid fragment program)");
+      return;
+   }
+
+   if (width < 0 || height < 0) {
+      _mesa_error(ctx, GL_INVALID_VALUE, "glCopyPixels(width or height < 0)");
+      return;
+   }
+
+   if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT ||
+       ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+      _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
+                  "glCopyPixels(incomplete framebuffer)" );
+      return;
+   }
+
+   if (!_mesa_source_buffer_exists(ctx, type) ||
+       !_mesa_dest_buffer_exists(ctx, type)) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "glCopyPixels(missing source or dest buffer)");
+      return;
+   }
+
+   if (!ctx->Current.RasterPosValid || width ==0 || height == 0) {
+      return;
+   }
+
+   if (ctx->RenderMode == GL_RENDER) {
+      /* Round to satisfy conformance tests (matches SGI's OpenGL) */
+      GLint destx = IROUND(ctx->Current.RasterPos[0]);
+      GLint desty = IROUND(ctx->Current.RasterPos[1]);
+      ctx->Driver.CopyPixels( ctx, srcx, srcy, width, height, destx, desty,
+			      type );
+   }
+   else if (ctx->RenderMode == GL_FEEDBACK) {
+      FLUSH_CURRENT( ctx, 0 );
+      FEEDBACK_TOKEN( ctx, (GLfloat) (GLint) GL_COPY_PIXEL_TOKEN );
+      _mesa_feedback_vertex( ctx, 
+                             ctx->Current.RasterPos,
+                             ctx->Current.RasterColor,
+                             ctx->Current.RasterIndex,
+                             ctx->Current.RasterTexCoords[0] );
+   }
+   else {
+      ASSERT(ctx->RenderMode == GL_SELECT);
+      /* Do nothing.  See OpenGL Spec, Appendix B, Corollary 6. */
+   }
+}
+
+#endif /* _HAVE_FULL_GL */
+
+
+
+void GLAPIENTRY
+_mesa_Bitmap( GLsizei width, GLsizei height,
+              GLfloat xorig, GLfloat yorig, GLfloat xmove, GLfloat ymove,
+              const GLubyte *bitmap )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+   if (width < 0 || height < 0) {
+      _mesa_error( ctx, GL_INVALID_VALUE, "glBitmap(width or height < 0)" );
+      return;
+   }
+
+   if (!ctx->Current.RasterPosValid) {
+      return;    /* do nothing */
+   }
+
+   if (ctx->NewState) {
+      _mesa_update_state(ctx);
+   }
+
+   if (ctx->FragmentProgram.Enabled && !ctx->FragmentProgram._Enabled) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "glBitmap (invalid fragment program)");
+      return;
+   }
+
+   if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+      _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
+                  "glBitmap(incomplete framebuffer)");
+      return;
    }
-   else if (ctx->RenderMode==GL_SELECT) {
-      if (ctx->Current.RasterPosValid) {
-         _mesa_update_hitflag( ctx, ctx->Current.RasterPos[2] );
+
+   if (ctx->RenderMode == GL_RENDER) {
+      /* Truncate, to satisfy conformance tests (matches SGI's OpenGL). */
+      const GLfloat epsilon = 0.0001F;
+      GLint x = IFLOOR(ctx->Current.RasterPos[0] + epsilon - xorig);
+      GLint y = IFLOOR(ctx->Current.RasterPos[1] + epsilon - yorig);
+
+      if (ctx->Unpack.BufferObj->Name) {
+         /* unpack from PBO */
+         if (!_mesa_validate_pbo_access(2, &ctx->Unpack, width, height, 1,
+                                        GL_COLOR_INDEX, GL_BITMAP,
+                                        (GLvoid *) bitmap)) {
+            _mesa_error(ctx, GL_INVALID_OPERATION,
+                        "glBitmap(invalid PBO access)");
+            return;
+         }
+         if (ctx->Unpack.BufferObj->Pointer) {
+            /* buffer is mapped - that's an error */
+            _mesa_error(ctx, GL_INVALID_OPERATION, "glBitmap(PBO is mapped)");
+            return;
+         }
       }
+
+      ctx->Driver.Bitmap( ctx, x, y, width, height, &ctx->Unpack, bitmap );
    }
+#if _HAVE_FULL_GL
+   else if (ctx->RenderMode == GL_FEEDBACK) {
+      FLUSH_CURRENT(ctx, 0);
+      FEEDBACK_TOKEN( ctx, (GLfloat) (GLint) GL_BITMAP_TOKEN );
+      _mesa_feedback_vertex( ctx,
+                             ctx->Current.RasterPos,
+                             ctx->Current.RasterColor,
+                             ctx->Current.RasterIndex, 
+                             ctx->Current.RasterTexCoords[0] );
+   }
+   else {
+      ASSERT(ctx->RenderMode == GL_SELECT);
+      /* Do nothing.  See OpenGL Spec, Appendix B, Corollary 6. */
+   }
+#endif
+
+   /* update raster position */
+   ctx->Current.RasterPos[0] += xmove;
+   ctx->Current.RasterPos[1] += ymove;
 }
+
+
+
+#if 0  /* experimental */
+/*
+ * Execute glDrawDepthPixelsMESA().  This function accepts both a color
+ * image and depth (Z) image.  Rasterization produces fragments with
+ * color and Z taken from these images.  This function is intended for
+ * Z-compositing.  Normally, this operation requires two glDrawPixels
+ * calls with stencil testing.
+ */
+void GLAPIENTRY
+_mesa_DrawDepthPixelsMESA( GLsizei width, GLsizei height,
+                           GLenum colorFormat, GLenum colorType,
+                           const GLvoid *colors,
+                           GLenum depthType, const GLvoid *depths )
+{
+   GET_CURRENT_CONTEXT(ctx);
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
+
+   if (width < 0 || height < 0) {
+      _mesa_error( ctx, GL_INVALID_VALUE,
+                   "glDrawDepthPixelsMESA(width or height < 0" );
+      return;
+   }
+
+   if (!ctx->Current.RasterPosValid) {
+      return;
+   }
+
+   if (ctx->NewState) {
+      _mesa_update_state(ctx);
+   }
+
+   if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+      _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
+                  "glDrawDepthPixelsMESA(incomplete framebuffer)");
+      return;
+   }
+
+   if (ctx->RenderMode == GL_RENDER) {
+      /* Round, to satisfy conformance tests (matches SGI's OpenGL) */
+      GLint x = IROUND(ctx->Current.RasterPos[0]);
+      GLint y = IROUND(ctx->Current.RasterPos[1]);
+      ctx->Driver.DrawDepthPixelsMESA(ctx, x, y, width, height,
+                                      colorFormat, colorType, colors,
+                                      depthType, depths, &ctx->Unpack);
+   }
+   else if (ctx->RenderMode == GL_FEEDBACK) {
+      /* Feedback the current raster pos info */
+      FLUSH_CURRENT( ctx, 0 );
+      FEEDBACK_TOKEN( ctx, (GLfloat) (GLint) GL_DRAW_PIXEL_TOKEN );
+      _mesa_feedback_vertex( ctx,
+                             ctx->Current.RasterPos,
+                             ctx->Current.RasterColor,
+                             ctx->Current.RasterIndex,
+                             ctx->Current.RasterTexCoords[0] );
+   }
+   else {
+      ASSERT(ctx->RenderMode == GL_SELECT);
+      /* Do nothing.  See OpenGL Spec, Appendix B, Corollary 6. */
+   }
+}
+
+#endif