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Diffstat (limited to 'src/mesa/drivers/dri/i965/intel_context.c')
-rw-r--r--src/mesa/drivers/dri/i965/intel_context.c34
1 files changed, 34 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/intel_context.c b/src/mesa/drivers/dri/i965/intel_context.c
index 5fc3d7150c..6bcc984285 100644
--- a/src/mesa/drivers/dri/i965/intel_context.c
+++ b/src/mesa/drivers/dri/i965/intel_context.c
@@ -70,6 +70,7 @@ int INTEL_DEBUG = (0);
#define need_GL_ARB_vertex_buffer_object
#define need_GL_ARB_vertex_program
#define need_GL_ARB_window_pos
+#define need_GL_ARB_occlusion_query
#define need_GL_EXT_blend_color
#define need_GL_EXT_blend_equation_separate
#define need_GL_EXT_blend_func_separate
@@ -160,6 +161,7 @@ const struct dri_extension card_extensions[] =
{ "GL_ARB_vertex_buffer_object", GL_ARB_vertex_buffer_object_functions },
{ "GL_ARB_vertex_program", GL_ARB_vertex_program_functions },
{ "GL_ARB_window_pos", GL_ARB_window_pos_functions },
+ { "GL_ARB_occlusion_query", GL_ARB_occlusion_query_functions},
{ "GL_EXT_blend_color", GL_EXT_blend_color_functions },
{ "GL_EXT_blend_equation_separate", GL_EXT_blend_equation_separate_functions },
{ "GL_EXT_blend_func_separate", GL_EXT_blend_func_separate_functions },
@@ -244,6 +246,36 @@ void intelFinish( GLcontext *ctx )
bmFinishFence(intel, bmLockAndFence(intel));
}
+static void
+intelBeginQuery(GLcontext *ctx, GLenum target, struct gl_query_object *q)
+{
+ struct intel_context *intel = intel_context( ctx );
+ GLuint64EXT tmp = 0;
+ drmI830MMIO io = {
+ .read_write = MMIO_WRITE,
+ .reg = MMIO_REGS_PS_DEPTH_COUNT,
+ .data = &tmp
+ };
+ intel->stats_wm = GL_TRUE;
+ intelFinish(&intel->ctx);
+ drmCommandWrite(intel->driFd, DRM_I830_MMIO, &io, sizeof(io));
+}
+
+static void
+intelEndQuery(GLcontext *ctx, GLenum target, struct gl_query_object *q)
+{
+ struct intel_context *intel = intel_context( ctx );
+ drmI830MMIO io = {
+ .read_write = MMIO_READ,
+ .reg = MMIO_REGS_PS_DEPTH_COUNT,
+ .data = &q->Result
+ };
+ intelFinish(&intel->ctx);
+ drmCommandRead(intel->driFd, DRM_I830_MMIO, &io, sizeof(io));
+ q->Ready = GL_TRUE;
+ intel->stats_wm = GL_FALSE;
+}
+
void intelInitDriverFunctions( struct dd_function_table *functions )
{
@@ -253,6 +285,8 @@ void intelInitDriverFunctions( struct dd_function_table *functions )
functions->Finish = intelFinish;
functions->GetString = intelGetString;
functions->UpdateState = intelInvalidateState;
+ functions->BeginQuery = intelBeginQuery;
+ functions->EndQuery = intelEndQuery;
/* CopyPixels can be accelerated even with the current memory
* manager: