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authorEric Anholt <eric@anholt.net>2011-07-21 09:15:05 -0700
committerEric Anholt <eric@anholt.net>2011-07-25 13:47:18 -0700
commit808024689247561d3de225856fb6ef17430fd39e (patch)
treeaa80bae837f53dd5b10b5120b579e99fecf7c544
parent185868c9c2e6a31a7313df2dbe29490547b65f61 (diff)
meta: Also save/restore clip planes for GLSL.
Fixes user-clip on 965 with 3D clears enabled. I created a separate flag because I wanted to avoid the overhead of the matrix operations in this path. Reviewed-by: Brian Paul <brianp@vmware.com>
-rw-r--r--src/mesa/drivers/common/meta.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/src/mesa/drivers/common/meta.c b/src/mesa/drivers/common/meta.c
index fa78674e4e..26c8951967 100644
--- a/src/mesa/drivers/common/meta.c
+++ b/src/mesa/drivers/common/meta.c
@@ -90,13 +90,14 @@
#define META_SCISSOR 0x100
#define META_SHADER 0x200
#define META_STENCIL_TEST 0x400
-#define META_TRANSFORM 0x800 /**< modelview, projection, clip planes */
+#define META_TRANSFORM 0x800 /**< modelview/projection matrix state */
#define META_TEXTURE 0x1000
#define META_VERTEX 0x2000
#define META_VIEWPORT 0x4000
#define META_CLAMP_FRAGMENT_COLOR 0x8000
#define META_CLAMP_VERTEX_COLOR 0x10000
#define META_CONDITIONAL_RENDER 0x20000
+#define META_CLIP 0x40000
/*@}*/
@@ -165,6 +166,8 @@ struct save_state
GLfloat ModelviewMatrix[16];
GLfloat ProjectionMatrix[16];
GLfloat TextureMatrix[16];
+
+ /** META_CLIP */
GLbitfield ClipPlanesEnabled;
/** META_TEXTURE */
@@ -547,6 +550,9 @@ _mesa_meta_begin(struct gl_context *ctx, GLbitfield state)
_mesa_Ortho(0.0, ctx->DrawBuffer->Width,
0.0, ctx->DrawBuffer->Height,
-1.0, 1.0);
+ }
+
+ if (state & META_CLIP) {
save->ClipPlanesEnabled = ctx->Transform.ClipPlanesEnabled;
if (ctx->Transform.ClipPlanesEnabled) {
GLuint i;
@@ -846,7 +852,9 @@ _mesa_meta_end(struct gl_context *ctx)
_mesa_LoadMatrixf(save->ProjectionMatrix);
_mesa_MatrixMode(save->MatrixMode);
+ }
+ if (state & META_CLIP) {
if (save->ClipPlanesEnabled) {
GLuint i;
for (i = 0; i < ctx->Const.MaxClipPlanes; i++) {
@@ -1669,6 +1677,7 @@ _mesa_meta_glsl_Clear(struct gl_context *ctx, GLbitfield buffers)
META_STENCIL_TEST |
META_VERTEX |
META_VIEWPORT |
+ META_CLIP |
META_CLAMP_FRAGMENT_COLOR);
if (!(buffers & BUFFER_BITS_COLOR)) {
@@ -1783,6 +1792,7 @@ _mesa_meta_CopyPixels(struct gl_context *ctx, GLint srcX, GLint srcY,
META_SHADER |
META_TEXTURE |
META_TRANSFORM |
+ META_CLIP |
META_VERTEX |
META_VIEWPORT));
@@ -2104,6 +2114,7 @@ _mesa_meta_DrawPixels(struct gl_context *ctx,
META_SHADER |
META_TEXTURE |
META_TRANSFORM |
+ META_CLIP |
META_VERTEX |
META_VIEWPORT |
META_CLAMP_FRAGMENT_COLOR |
@@ -2313,6 +2324,7 @@ _mesa_meta_Bitmap(struct gl_context *ctx,
META_SHADER |
META_TEXTURE |
META_TRANSFORM |
+ META_CLIP |
META_VERTEX |
META_VIEWPORT));