Mesa (gallium-0.2): mesa: check frambuffer complete status before rendering
Alan Hourihane
alanh at kemper.freedesktop.org
Fri Jan 16 16:45:06 UTC 2009
Module: Mesa
Branch: gallium-0.2
Commit: fbf13bcb8aeeeb70475d9bd8a0d0640936d27047
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=fbf13bcb8aeeeb70475d9bd8a0d0640936d27047
Author: Alan Hourihane <alanh at vmware.com>
Date: Thu Jan 15 11:51:39 2009 +0000
mesa: check frambuffer complete status before rendering
---
src/mesa/main/api_validate.c | 33 ++++++++++++++++++++-------------
1 files changed, 20 insertions(+), 13 deletions(-)
diff --git a/src/mesa/main/api_validate.c b/src/mesa/main/api_validate.c
index 98dfbb1..59c2deb 100644
--- a/src/mesa/main/api_validate.c
+++ b/src/mesa/main/api_validate.c
@@ -78,6 +78,23 @@ max_buffer_index(GLcontext *ctx, GLuint count, GLenum type,
return max;
}
+static GLboolean
+check_valid_to_render(GLcontext *ctx, char *function)
+{
+ if (ctx->DrawBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
+ _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
+ "glDraw%s(incomplete framebuffer)", function);
+ return GL_FALSE;
+ }
+
+ /* Always need vertex positions, unless a vertex program is in use */
+ if (!ctx->VertexProgram._Current &&
+ !ctx->Array.ArrayObj->Vertex.Enabled &&
+ !ctx->Array.ArrayObj->VertexAttrib[0].Enabled)
+ return GL_FALSE;
+
+ return GL_TRUE;
+}
GLboolean
_mesa_validate_DrawElements(GLcontext *ctx,
@@ -108,10 +125,7 @@ _mesa_validate_DrawElements(GLcontext *ctx,
if (ctx->NewState)
_mesa_update_state(ctx);
- /* Always need vertex positions, unless a vertex program is in use */
- if (!ctx->VertexProgram._Current &&
- !ctx->Array.ArrayObj->Vertex.Enabled &&
- !ctx->Array.ArrayObj->VertexAttrib[0].Enabled)
+ if (!check_valid_to_render(ctx, "Elements"))
return GL_FALSE;
/* Vertex buffer object tests */
@@ -155,7 +169,6 @@ _mesa_validate_DrawElements(GLcontext *ctx,
return GL_TRUE;
}
-
GLboolean
_mesa_validate_DrawRangeElements(GLcontext *ctx, GLenum mode,
GLuint start, GLuint end,
@@ -190,10 +203,7 @@ _mesa_validate_DrawRangeElements(GLcontext *ctx, GLenum mode,
if (ctx->NewState)
_mesa_update_state(ctx);
- /* Always need vertex positions, unless a vertex program is in use */
- if (!ctx->VertexProgram._Current &&
- !ctx->Array.ArrayObj->Vertex.Enabled &&
- !ctx->Array.ArrayObj->VertexAttrib[0].Enabled)
+ if (!check_valid_to_render(ctx, "RangeElements"))
return GL_FALSE;
/* Vertex buffer object tests */
@@ -261,10 +271,7 @@ _mesa_validate_DrawArrays(GLcontext *ctx,
if (ctx->NewState)
_mesa_update_state(ctx);
- /* Always need vertex positions, unless a vertex program is in use */
- if (!ctx->VertexProgram._Current &&
- !ctx->Array.ArrayObj->Vertex.Enabled &&
- !ctx->Array.ArrayObj->VertexAttrib[0].Enabled)
+ if (!check_valid_to_render(ctx, "Arrays"))
return GL_FALSE;
if (ctx->Const.CheckArrayBounds) {
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