Module: Mesa
Branch: master
Commit: 01e493980c133ad20f70d627dcc1b1900e3ebf44
URL:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=01e493980c133ad20f70d627dcc1b1900e3ebf44
Author: Chad Versace <c...@chad-versace.us>
Date: Tue Jun 21 22:58:39 2011 -0700
intel: Define functions intel_texture_s8z24_scatter/gather
... which copy the stencil bits between intel_image->depth_rb and
intel_image->stencil_rb.
Signed-off-by: Chad Versace <c...@chad-versace.us>
---
src/mesa/drivers/dri/intel/intel_tex_image.c | 70 ++++++++++++++++++++++++++
1 files changed, 70 insertions(+), 0 deletions(-)
diff --git a/src/mesa/drivers/dri/intel/intel_tex_image.c
b/src/mesa/drivers/dri/intel/intel_tex_image.c
index 472a8e1..6065238 100644
--- a/src/mesa/drivers/dri/intel/intel_tex_image.c
+++ b/src/mesa/drivers/dri/intel/intel_tex_image.c
@@ -21,6 +21,7 @@
#include "intel_tex.h"
#include "intel_blit.h"
#include "intel_fbo.h"
+#include "intel_span.h"
#define FILE_DEBUG_FLAG DEBUG_TEXTURE
@@ -277,6 +278,75 @@ try_pbo_zcopy(struct intel_context *intel,
return GL_TRUE;
}
+/**
+ * \param scatter Scatter if true. Gather if false.
+ *
+ * \see intel_tex_image_x8z24_scatter
+ * \see intel_tex_image_x8z24_gather
+ */
+static void
+intel_tex_image_s8z24_scattergather(struct intel_context *intel,
+ struct intel_texture_image *intel_image,
+ bool scatter)
+{
+ struct gl_context *ctx = &intel->ctx;
+ struct gl_renderbuffer *depth_rb = intel_image->depth_rb;
+ struct gl_renderbuffer *stencil_rb = intel_image->stencil_rb;
+
+ int w = intel_image->base.Width;
+ int h = intel_image->base.Height;
+
+ uint32_t depth_row[w];
+ uint8_t stencil_row[w];
+
+ intel_renderbuffer_map(intel, depth_rb);
+ intel_renderbuffer_map(intel, stencil_rb);
+
+ if (scatter) {
+ for (int y = 0; y < h; ++y) {
+ depth_rb->GetRow(ctx, depth_rb, w, 0, y, depth_row);
+ for (int x = 0; x < w; ++x) {
+ stencil_row[x] = depth_row[x] >> 24;
+ }
+ stencil_rb->PutRow(ctx, stencil_rb, w, 0, y, stencil_row, NULL);
+ }
+ } else { /* gather */
+ for (int y = 0; y < h; ++y) {
+ depth_rb->GetRow(ctx, depth_rb, w, 0, y, depth_row);
+ stencil_rb->GetRow(ctx, stencil_rb, w, 0, y, stencil_row);
+ for (int x = 0; x < w; ++x) {
+ uint32_t s8_x24 = stencil_row[x] << 24;
+ uint32_t x8_z24 = depth_row[x] & 0x00ffffff;
+ depth_row[x] = s8_x24 | x8_z24;
+ }
+ depth_rb->PutRow(ctx, depth_rb, w, 0, y, depth_row, NULL);
+ }
+ }
+
+ intel_renderbuffer_unmap(intel, depth_rb);
+ intel_renderbuffer_unmap(intel, stencil_rb);
+}
+
+/**
+ * Copy the x8 bits from intel_image->depth_rb to intel_image->stencil_rb.
+ */
+static void
+intel_tex_image_s8z24_scatter(struct intel_context *intel,
+ struct intel_texture_image *intel_image)
+{
+ intel_tex_image_s8z24_scattergather(intel, intel_image, true);
+}
+
+/**
+ * Copy the data in intel_image->stencil_rb to the x8 bits in
+ * intel_image->depth_rb.
+ */
+static void
+intel_tex_image_s8z24_gather(struct intel_context *intel,
+ struct intel_texture_image *intel_image)
+{
+ intel_tex_image_s8z24_scattergather(intel, intel_image, false);
+}
static void
intelTexImage(struct gl_context * ctx,
_______________________________________________
mesa-commit mailing list
mesa-commit@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/mesa-commit
