From f6d1847eef027266daa0f75ee92ceb09698b2761 Mon Sep 17 00:00:00 2001
From: marha <marha@users.sourceforge.net>
Date: Fri, 29 Jun 2012 09:50:56 +0200
Subject: xkeyboard-config xserver pixman mesa git update 29 Jun 2012

---
 mesalib/src/mesa/main/api_validate.c | 82 +++++++++++++++++++++++++++++++++---
 1 file changed, 76 insertions(+), 6 deletions(-)

(limited to 'mesalib/src/mesa/main/api_validate.c')

diff --git a/mesalib/src/mesa/main/api_validate.c b/mesalib/src/mesa/main/api_validate.c
index 02495a15a..631bceecf 100644
--- a/mesalib/src/mesa/main/api_validate.c
+++ b/mesalib/src/mesa/main/api_validate.c
@@ -272,7 +272,7 @@ _mesa_validate_DrawElements(struct gl_context *ctx,
 			    GLenum mode, GLsizei count, GLenum type,
 			    const GLvoid *indices, GLint basevertex)
 {
-   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH_WITH_RETVAL(ctx, GL_FALSE);
 
    if (count <= 0) {
       if (count < 0)
@@ -317,6 +317,76 @@ _mesa_validate_DrawElements(struct gl_context *ctx,
 }
 
 
+/**
+ * Error checking for glMultiDrawElements().  Includes parameter checking
+ * and VBO bounds checking.
+ * \return GL_TRUE if OK to render, GL_FALSE if error found
+ */
+GLboolean
+_mesa_validate_MultiDrawElements(struct gl_context *ctx,
+                                 GLenum mode, const GLsizei *count,
+                                 GLenum type, const GLvoid * const *indices,
+                                 GLuint primcount, const GLint *basevertex)
+{
+   unsigned i;
+
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH_WITH_RETVAL(ctx, GL_FALSE);
+
+   for (i = 0; i < primcount; i++) {
+      if (count[i] <= 0) {
+         if (count[i] < 0)
+            _mesa_error(ctx, GL_INVALID_VALUE,
+                        "glMultiDrawElements(count)" );
+         return GL_FALSE;
+      }
+   }
+
+   if (!_mesa_valid_prim_mode(ctx, mode, "glMultiDrawElements")) {
+      return GL_FALSE;
+   }
+
+   if (type != GL_UNSIGNED_INT &&
+       type != GL_UNSIGNED_BYTE &&
+       type != GL_UNSIGNED_SHORT)
+   {
+      _mesa_error(ctx, GL_INVALID_ENUM, "glMultiDrawElements(type)" );
+      return GL_FALSE;
+   }
+
+   if (!check_valid_to_render(ctx, "glMultiDrawElements"))
+      return GL_FALSE;
+
+   /* Vertex buffer object tests */
+   if (_mesa_is_bufferobj(ctx->Array.ArrayObj->ElementArrayBufferObj)) {
+      /* use indices in the buffer object */
+      /* make sure count doesn't go outside buffer bounds */
+      for (i = 0; i < primcount; i++) {
+         if (index_bytes(type, count[i]) >
+             ctx->Array.ArrayObj->ElementArrayBufferObj->Size) {
+            _mesa_warning(ctx,
+                          "glMultiDrawElements index out of buffer bounds");
+            return GL_FALSE;
+         }
+      }
+   }
+   else {
+      /* not using a VBO */
+      for (i = 0; i < primcount; i++) {
+         if (!indices[i])
+            return GL_FALSE;
+      }
+   }
+
+   for (i = 0; i < primcount; i++) {
+      if (!check_index_bounds(ctx, count[i], type, indices[i],
+                              basevertex ? basevertex[i] : 0))
+         return GL_FALSE;
+   }
+
+   return GL_TRUE;
+}
+
+
 /**
  * Error checking for glDrawRangeElements().  Includes parameter checking
  * and VBO bounds checking.
@@ -328,7 +398,7 @@ _mesa_validate_DrawRangeElements(struct gl_context *ctx, GLenum mode,
 				 GLsizei count, GLenum type,
 				 const GLvoid *indices, GLint basevertex)
 {
-   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH_WITH_RETVAL(ctx, GL_FALSE);
 
    if (count <= 0) {
       if (count < 0)
@@ -386,7 +456,7 @@ GLboolean
 _mesa_validate_DrawArrays(struct gl_context *ctx,
 			  GLenum mode, GLint start, GLsizei count)
 {
-   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH_WITH_RETVAL(ctx, GL_FALSE);
 
    if (count <= 0) {
       if (count < 0)
@@ -414,7 +484,7 @@ GLboolean
 _mesa_validate_DrawArraysInstanced(struct gl_context *ctx, GLenum mode, GLint first,
                                    GLsizei count, GLsizei numInstances)
 {
-   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH_WITH_RETVAL(ctx, GL_FALSE);
 
    if (count <= 0) {
       if (count < 0)
@@ -458,7 +528,7 @@ _mesa_validate_DrawElementsInstanced(struct gl_context *ctx,
                                      const GLvoid *indices, GLsizei numInstances,
                                      GLint basevertex)
 {
-   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH_WITH_RETVAL(ctx, GL_FALSE);
 
    if (count <= 0) {
       if (count < 0)
@@ -519,7 +589,7 @@ _mesa_validate_DrawTransformFeedback(struct gl_context *ctx,
                                      GLenum mode,
                                      struct gl_transform_feedback_object *obj)
 {
-   ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
+   ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH_WITH_RETVAL(ctx, GL_FALSE);
 
    if (!_mesa_valid_prim_mode(ctx, mode, "glDrawTransformFeedback")) {
       return GL_FALSE;
-- 
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