From: Ian Romanick <ian.d.roman...@intel.com>
Fixes gles3conform test CoverageES30. It temporarily regresses some
framebuffer_blit tests, but the failing subcases have been determined to
be invalid for OpenGL ES 3.0.
Signed-off-by: Ian Romanick <ian.d.roman...@intel.com>
---
src/mesa/main/fbobject.c | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
diff --git a/src/mesa/main/fbobject.c b/src/mesa/main/fbobject.c
index 9db5035..721ecea 100644
--- a/src/mesa/main/fbobject.c
+++ b/src/mesa/main/fbobject.c
@@ -2856,6 +2856,23 @@ _mesa_BlitFramebuffer(GLint srcX0, GLint srcY0, GLint
srcX1, GLint srcY1,
if (!colorDrawRb)
continue;
+ /* Page 193 (page 205 of the PDF) in section 4.3.2 of the OpenGL
+ * ES 3.0.1 spec says:
+ *
+ * "If the source and destination buffers are identical, an
+ * INVALID_OPERATION error is generated. Different mipmap
+ * levels of a texture, different layers of a three-
+ * dimensional texture or two-dimensional array texture, and
+ * different faces of a cube map texture do not constitute
+ * identical buffers."
+ */
+ if (_mesa_is_gles3(ctx) && (colorDrawRb == colorReadRb)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBlitFramebuffer(source and destination color "
+ "buffer cannot be the same)");
+ return;
+ }
+
if (!compatible_color_datatypes(colorReadRb->Format,
colorDrawRb->Format)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
@@ -2905,6 +2922,13 @@ _mesa_BlitFramebuffer(GLint srcX0, GLint srcY0, GLint
srcX1, GLint srcY1,
else {
int read_z_bits, draw_z_bits;
+ if (_mesa_is_gles3(ctx) && (drawFb == readFb)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBlitFramebuffer(source and destination stencil "
+ "buffer cannot be the same)");
+ return;
+ }
+
if (_mesa_get_format_bits(readRb->Format, GL_STENCIL_BITS) !=
_mesa_get_format_bits(drawRb->Format, GL_STENCIL_BITS)) {
/* There is no need to check the stencil datatype here, because
@@ -2952,6 +2976,13 @@ _mesa_BlitFramebuffer(GLint srcX0, GLint srcY0, GLint
srcX1, GLint srcY1,
else {
int read_s_bit, draw_s_bit;
+ if (_mesa_is_gles3(ctx) && (drawFb == readFb)) {
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "glBlitFramebuffer(source and destination depth "
+ "buffer cannot be the same)");
+ return;
+ }
+
if ((_mesa_get_format_bits(readRb->Format, GL_DEPTH_BITS) !=
_mesa_get_format_bits(drawRb->Format, GL_DEPTH_BITS)) ||
(_mesa_get_format_datatype(readRb->Format) !=
--
1.7.11.7
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