---
src/mesa/drivers/dri/intel/intel_fbo.c | 55 ++++++++++++++++++++++++++++++++
1 files changed, 55 insertions(+), 0 deletions(-)
diff --git a/src/mesa/drivers/dri/intel/intel_fbo.c
b/src/mesa/drivers/dri/intel/intel_fbo.c
index 4537f1f..c9a1df5 100644
--- a/src/mesa/drivers/dri/intel/intel_fbo.c
+++ b/src/mesa/drivers/dri/intel/intel_fbo.c
@@ -83,6 +83,59 @@ intel_delete_renderbuffer(struct gl_renderbuffer *rb)
free(irb);
}
+static void
+intel_map_renderbuffer(struct gl_context *ctx,
+ struct gl_renderbuffer *rb,
+ GLuint x, GLuint y, GLuint w, GLuint h,
+ GLbitfield mode,
+ GLubyte **out_map,
+ GLint *out_stride)
+{
+ struct intel_context *intel = intel_context(ctx);
+ struct intel_renderbuffer *irb = intel_renderbuffer(rb);
+ GLubyte *map;
+ int stride;
+
+ /* We sometimes get called with this by our intel_span.c usage. */
+ if (!irb->region) {
+ *out_map = NULL;
+ *out_stride = 0;
+ return;
+ }
+
+ if (drm_intel_bo_references(intel->batch.bo, irb->region->bo)) {
+ intel_batchbuffer_flush(intel);
+ }
+
+ drm_intel_gem_bo_map_gtt(irb->region->bo);
+
+ map = irb->region->bo->virtual;
+ stride = irb->region->pitch * irb->region->cpp;
+
+ if (rb->Name == 0) {
+ map += stride * (irb->region->height - 1);
+ stride = -stride;
+ } else {
+ map += irb->draw_x * irb->region->cpp;
+ map += (int)irb->draw_y * stride;
+ }
+
+ map += x * irb->region->cpp;
+ map += (int)y * stride;
+
+ *out_map = map;
+ *out_stride = stride;
+}
+
+static void
+intel_unmap_renderbuffer(struct gl_context *ctx,
+ struct gl_renderbuffer *rb)
+{
+ struct intel_renderbuffer *irb = intel_renderbuffer(rb);
+
+ if (irb->region)
+ drm_intel_gem_bo_unmap_gtt(irb->region->bo);
+}
/**
* Return a pointer to a specific pixel in a renderbuffer.
@@ -938,6 +991,8 @@ intel_fbo_init(struct intel_context *intel)
{
intel->ctx.Driver.NewFramebuffer = intel_new_framebuffer;
intel->ctx.Driver.NewRenderbuffer = intel_new_renderbuffer;
+ intel->ctx.Driver.MapRenderbuffer = intel_map_renderbuffer;
+ intel->ctx.Driver.UnmapRenderbuffer = intel_unmap_renderbuffer;
intel->ctx.Driver.BindFramebuffer = intel_bind_framebuffer;
intel->ctx.Driver.FramebufferRenderbuffer = intel_framebuffer_renderbuffer;
intel->ctx.Driver.RenderTexture = intel_render_texture;
--
1.7.7
_______________________________________________
mesa-dev mailing list
mesa-dev@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/mesa-dev
