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authorChad Versace <[email protected]>2011-10-07 15:07:00 -0700
committerChad Versace <[email protected]>2011-10-18 11:42:53 -0700
commitc5f4024a793f1209b1693aed9a46be9374ba4741 (patch)
treefa2a519116cbefbd524789c9a960e257361ca039 /src
parentc56d0a61b97b29cec851df4cd385f095e3876848 (diff)
meta: Add flag MESA_META_SELECT_FEEDBACK
If this flag is set, then _mesa_meta_begin/end will save/restore the state of GL_SELECT and GL_FEEDBACK render modes. Intel's future buffer resolve meta-ops will require this, since buffer resolves may occur when the GL_RENDER_MODE is GL_SELECT. Reviewed-by: Brian Paul <[email protected]> Signed-off-by: Chad Versace <[email protected]>
Diffstat (limited to 'src')
-rw-r--r--src/mesa/drivers/common/meta.c27
-rw-r--r--src/mesa/drivers/common/meta.h1
2 files changed, 28 insertions, 0 deletions
diff --git a/src/mesa/drivers/common/meta.c b/src/mesa/drivers/common/meta.c
index 36bd295ec3f..6958ddf9c29 100644
--- a/src/mesa/drivers/common/meta.c
+++ b/src/mesa/drivers/common/meta.c
@@ -44,6 +44,7 @@
#include "main/depth.h"
#include "main/enable.h"
#include "main/fbobject.h"
+#include "main/feedback.h"
#include "main/formats.h"
#include "main/image.h"
#include "main/macros.h"
@@ -172,6 +173,11 @@ struct save_state
struct gl_query_object *CondRenderQuery;
GLenum CondRenderMode;
+ /** MESA_META_SELECT_FEEDBACK */
+ GLenum RenderMode;
+ struct gl_selection Select;
+ struct gl_feedback Feedback;
+
/** Miscellaneous (always disabled) */
GLboolean Lighting;
};
@@ -608,6 +614,17 @@ _mesa_meta_begin(struct gl_context *ctx, GLbitfield state)
_mesa_EndConditionalRender();
}
+ if (state & MESA_META_SELECT_FEEDBACK) {
+ save->RenderMode = ctx->RenderMode;
+ if (ctx->RenderMode == GL_SELECT) {
+ save->Select = ctx->Select; /* struct copy */
+ _mesa_RenderMode(GL_RENDER);
+ } else if (ctx->RenderMode == GL_FEEDBACK) {
+ save->Feedback = ctx->Feedback; /* struct copy */
+ _mesa_RenderMode(GL_RENDER);
+ }
+ }
+
/* misc */
{
save->Lighting = ctx->Light.Enabled;
@@ -893,6 +910,16 @@ _mesa_meta_end(struct gl_context *ctx)
save->CondRenderMode);
}
+ if (state & MESA_META_SELECT_FEEDBACK) {
+ if (save->RenderMode == GL_SELECT) {
+ _mesa_RenderMode(GL_SELECT);
+ ctx->Select = save->Select;
+ } else if (save->RenderMode == GL_FEEDBACK) {
+ _mesa_RenderMode(GL_FEEDBACK);
+ ctx->Feedback = save->Feedback;
+ }
+ }
+
/* misc */
if (save->Lighting) {
_mesa_set_enable(ctx, GL_LIGHTING, GL_TRUE);
diff --git a/src/mesa/drivers/common/meta.h b/src/mesa/drivers/common/meta.h
index 7ec56838831..e0435a822f5 100644
--- a/src/mesa/drivers/common/meta.h
+++ b/src/mesa/drivers/common/meta.h
@@ -54,6 +54,7 @@
#define MESA_META_CLAMP_VERTEX_COLOR 0x10000
#define MESA_META_CONDITIONAL_RENDER 0x20000
#define MESA_META_CLIP 0x40000
+#define MESA_META_SELECT_FEEDBACK 0x80000
/**\}*/
extern void