diff options
Diffstat (limited to 'src/mesa/main/attrib.c')
| -rw-r--r-- | src/mesa/main/attrib.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/mesa/main/attrib.c b/src/mesa/main/attrib.c index b163c0aa699..53626e38be9 100644 --- a/src/mesa/main/attrib.c +++ b/src/mesa/main/attrib.c @@ -177,6 +177,10 @@ struct texture_state }; +/** An unused GL_*_BIT value */ +#define DUMMY_BIT 0x10000000 + + /** * Allocate new attribute node of given type/kind. Attach payload data. * Insert it into the linked list named by 'head'. @@ -253,6 +257,15 @@ _mesa_PushAttrib(GLbitfield mask) /* groups specified by the mask. */ head = NULL; + if (mask == 0) { + /* if mask is zero we still need to push something so that we + * don't get a GL_STACK_UNDERFLOW error in glPopAttrib(). + */ + GLuint dummy = 0; + if (!push_attrib(ctx, &head, DUMMY_BIT, sizeof(dummy), &dummy)) + goto end; + } + if (mask & GL_ACCUM_BUFFER_BIT) { if (!push_attrib(ctx, &head, GL_ACCUM_BUFFER_BIT, sizeof(struct gl_accum_attrib), @@ -928,6 +941,10 @@ _mesa_PopAttrib(void) } switch (attr->kind) { + case DUMMY_BIT: + /* do nothing */ + break; + case GL_ACCUM_BUFFER_BIT: { const struct gl_accum_attrib *accum; @@ -1074,6 +1091,11 @@ _mesa_PopAttrib(void) _mesa_ClearDepth(depth->Clear); _mesa_set_enable(ctx, GL_DEPTH_TEST, depth->Test); _mesa_DepthMask(depth->Mask); + if (ctx->Extensions.EXT_depth_bounds_test) { + _mesa_set_enable(ctx, GL_DEPTH_BOUNDS_TEST_EXT, + depth->BoundsTest); + _mesa_DepthBoundsEXT(depth->BoundsMin, depth->BoundsMax); + } } break; case GL_ENABLE_BIT: |