From: Bryan Cain <bryanca...@gmail.com>
When a geometry shader is active, the transform feedback primitive
type ("mode") needs to be validated against the geometry shader output
primitive type, not the primitive type passed to the glDraw*()
function.
Fixes the following piglit tests:
- glsl-1.50-geometry-primitive-types GL_LINES
- glsl-1.50-geometry-primitive-types GL_LINES_ADJACENCY
- glsl-1.50-geometry-primitive-types GL_LINE_STRIP
- glsl-1.50-geometry-primitive-types GL_LINE_STRIP_ADJACENCY
- glsl-1.50-geometry-primitive-types GL_TRIANGLES
- glsl-1.50-geometry-primitive-types GL_TRIANGLES_ADJACENCY
- glsl-1.50-geometry-primitive-types GL_TRIANGLE_FAN
Exposes previously hidden failures in the following piglit tests:
- glsl-1.50-geometry-primitive-id-restart GL_LINES other
- glsl-1.50-geometry-primitive-id-restart GL_LINES_ADJACENCY other
- glsl-1.50-geometry-primitive-id-restart GL_LINE_LOOP ffs
- glsl-1.50-geometry-primitive-id-restart GL_LINE_LOOP other
- glsl-1.50-geometry-primitive-id-restart GL_LINE_STRIP other
- glsl-1.50-geometry-primitive-id-restart GL_LINE_STRIP_ADJACENCY other
- glsl-1.50-geometry-primitive-id-restart GL_TRIANGLES other
- glsl-1.50-geometry-primitive-id-restart GL_TRIANGLES_ADJACENCY other
- glsl-1.50-geometry-primitive-id-restart GL_TRIANGLE_FAN ffs
- glsl-1.50-geometry-primitive-id-restart GL_TRIANGLE_FAN other
- glsl-1.50-geometry-primitive-id-restart GL_TRIANGLE_STRIP other
- glsl-1.50-geometry-primitive-id-restart GL_TRIANGLE_STRIP_ADJACENCY other
(These failures were previously hidden due to a flaw in the test: it
doesn't check for GL errors. I'll fix the test shortly).
---
src/mesa/main/api_validate.c | 53 +++++++++++++++++++++++++++++---------------
1 file changed, 35 insertions(+), 18 deletions(-)
diff --git a/src/mesa/main/api_validate.c b/src/mesa/main/api_validate.c
index 0029921..f285c97 100644
--- a/src/mesa/main/api_validate.c
+++ b/src/mesa/main/api_validate.c
@@ -330,26 +330,43 @@ _mesa_valid_prim_mode(struct gl_context *ctx, GLenum
mode, const char *name)
if (_mesa_is_xfb_active_and_unpaused(ctx)) {
GLboolean pass = GL_TRUE;
- switch (mode) {
- case GL_POINTS:
- pass = ctx->TransformFeedback.Mode == GL_POINTS;
- break;
- case GL_LINES:
- case GL_LINE_STRIP:
- case GL_LINE_LOOP:
- pass = ctx->TransformFeedback.Mode == GL_LINES;
- break;
- default:
- pass = ctx->TransformFeedback.Mode == GL_TRIANGLES;
- break;
+ if(ctx->Shader.CurrentGeometryProgram) {
+ switch (ctx->Shader.CurrentGeometryProgram->Geom.OutputType) {
+ case GL_POINTS:
+ pass = ctx->TransformFeedback.Mode == GL_POINTS;
+ break;
+ case GL_LINE_STRIP:
+ pass = ctx->TransformFeedback.Mode == GL_LINES;
+ break;
+ case GL_TRIANGLE_STRIP:
+ pass = ctx->TransformFeedback.Mode == GL_TRIANGLES;
+ break;
+ default:
+ pass = GL_FALSE;
+ }
+ }
+ else {
+ switch (mode) {
+ case GL_POINTS:
+ pass = ctx->TransformFeedback.Mode == GL_POINTS;
+ break;
+ case GL_LINES:
+ case GL_LINE_STRIP:
+ case GL_LINE_LOOP:
+ pass = ctx->TransformFeedback.Mode == GL_LINES;
+ break;
+ default:
+ pass = ctx->TransformFeedback.Mode == GL_TRIANGLES;
+ break;
+ }
}
if (!pass) {
- _mesa_error(ctx, GL_INVALID_OPERATION,
- "%s(mode=%s vs transform feedback %s)",
- name,
- _mesa_lookup_prim_by_nr(mode),
- _mesa_lookup_prim_by_nr(ctx->TransformFeedback.Mode));
- return GL_FALSE;
+ _mesa_error(ctx, GL_INVALID_OPERATION,
+ "%s(mode=%s vs transform feedback %s)",
+ name,
+ _mesa_lookup_prim_by_nr(mode),
+ _mesa_lookup_prim_by_nr(ctx->TransformFeedback.Mode));
+ return GL_FALSE;
}
}
--
1.8.4
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