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mesa: check frambuffer complete status before rendering

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This commit is contained in:
Alan Hourihane
2009-01-15 11:51:39 +00:00
parent 8f8435637d
commit fbf13bcb8a
1 changed files with 20 additions and 13 deletions
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src/mesa/main/api_validate.c
+20 -13
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@@ -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) {