/**************************************************************************
*
- * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * Copyright 2006 VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
-#include "enums.h"
-#include "state.h"
+#include "main/accum.h"
+#include "main/enums.h"
+#include "main/state.h"
+#include "main/bufferobj.h"
+#include "main/context.h"
#include "swrast/swrast.h"
#include "intel_context.h"
#include "intel_pixel.h"
#include "intel_regions.h"
+#define FILE_DEBUG_FLAG DEBUG_PIXEL
+
+static GLenum
+effective_func(GLenum func, bool src_alpha_is_one)
+{
+ if (src_alpha_is_one) {
+ if (func == GL_SRC_ALPHA)
+ return GL_ONE;
+ if (func == GL_ONE_MINUS_SRC_ALPHA)
+ return GL_ZERO;
+ }
+
+ return func;
+}
/**
* Check if any fragment operations are in effect which might effect
* glDraw/CopyPixels.
*/
-GLboolean
-intel_check_blit_fragment_ops(GLcontext * ctx)
+bool
+intel_check_blit_fragment_ops(struct gl_context * ctx, bool src_alpha_is_one)
{
if (ctx->NewState)
_mesa_update_state(ctx);
- /* XXX Note: Scissor could be done with the blitter:
- */
- return !(ctx->_ImageTransferState ||
- ctx->Color.AlphaEnabled ||
- ctx->Depth.Test ||
- ctx->Fog.Enabled ||
- ctx->Scissor.Enabled ||
- ctx->Stencil.Enabled ||
- !ctx->Color.ColorMask[0] ||
- !ctx->Color.ColorMask[1] ||
- !ctx->Color.ColorMask[2] ||
- !ctx->Color.ColorMask[3] ||
- ctx->Texture._EnabledUnits ||
- ctx->FragmentProgram._Enabled ||
- ctx->Color.BlendEnabled);
-}
+ if (ctx->FragmentProgram._Enabled) {
+ DBG("fallback due to fragment program\n");
+ return false;
+ }
+ if (ctx->Color.BlendEnabled &&
+ (effective_func(ctx->Color.Blend[0].SrcRGB, src_alpha_is_one) != GL_ONE ||
+ effective_func(ctx->Color.Blend[0].DstRGB, src_alpha_is_one) != GL_ZERO ||
+ ctx->Color.Blend[0].EquationRGB != GL_FUNC_ADD ||
+ effective_func(ctx->Color.Blend[0].SrcA, src_alpha_is_one) != GL_ONE ||
+ effective_func(ctx->Color.Blend[0].DstA, src_alpha_is_one) != GL_ZERO ||
+ ctx->Color.Blend[0].EquationA != GL_FUNC_ADD)) {
+ DBG("fallback due to blend\n");
+ return false;
+ }
-GLboolean
-intel_check_meta_tex_fragment_ops(GLcontext * ctx)
-{
- if (ctx->NewState)
- _mesa_update_state(ctx);
+ if (ctx->Texture._MaxEnabledTexImageUnit != -1) {
+ DBG("fallback due to texturing\n");
+ return false;
+ }
- /* Some of _ImageTransferState (scale, bias) could be done with
- * fragment programs on i915.
- */
- return !(ctx->_ImageTransferState || ctx->Fog.Enabled || /* not done yet */
- ctx->Texture._EnabledUnits || ctx->FragmentProgram._Enabled);
-}
+ if (!(ctx->Color.ColorMask[0][0] &&
+ ctx->Color.ColorMask[0][1] &&
+ ctx->Color.ColorMask[0][2] &&
+ ctx->Color.ColorMask[0][3])) {
+ DBG("fallback due to color masking\n");
+ return false;
+ }
-/* The intel_region struct doesn't really do enough to capture the
- * format of the pixels in the region. For now this code assumes that
- * the region is a display surface and hence is either ARGB8888 or
- * RGB565.
- * XXX FBO: If we'd pass in the intel_renderbuffer instead of region, we'd
- * know the buffer's pixel format.
- *
- * \param format as given to glDraw/ReadPixels
- * \param type as given to glDraw/ReadPixels
- */
-GLboolean
-intel_check_blit_format(struct intel_region * region,
- GLenum format, GLenum type)
-{
- if (region->cpp == 4 &&
- (type == GL_UNSIGNED_INT_8_8_8_8_REV ||
- type == GL_UNSIGNED_BYTE) && format == GL_BGRA) {
- return GL_TRUE;
+ if (ctx->Color.AlphaEnabled) {
+ DBG("fallback due to alpha\n");
+ return false;
}
- if (region->cpp == 2 &&
- type == GL_UNSIGNED_SHORT_5_6_5_REV && format == GL_BGR) {
- return GL_TRUE;
+ if (ctx->Depth.Test) {
+ DBG("fallback due to depth test\n");
+ return false;
}
- if (INTEL_DEBUG & DEBUG_PIXEL)
- fprintf(stderr, "%s: bad format for blit (cpp %d, type %s format %s)\n",
- __FUNCTION__, region->cpp,
- _mesa_lookup_enum_by_nr(type), _mesa_lookup_enum_by_nr(format));
+ if (ctx->Fog.Enabled) {
+ DBG("fallback due to fog\n");
+ return false;
+ }
- return GL_FALSE;
-}
+ if (ctx->_ImageTransferState) {
+ DBG("fallback due to image transfer\n");
+ return false;
+ }
+ if (ctx->Stencil._Enabled) {
+ DBG("fallback due to image stencil\n");
+ return false;
+ }
+
+ if (ctx->RenderMode != GL_RENDER) {
+ DBG("fallback due to render mode\n");
+ return false;
+ }
+
+ return true;
+}
void
intelInitPixelFuncs(struct dd_function_table *functions)
{
- functions->Accum = _swrast_Accum;
- functions->Bitmap = _swrast_Bitmap;
+ functions->Bitmap = intelBitmap;
functions->CopyPixels = intelCopyPixels;
- functions->ReadPixels = intelReadPixels;
functions->DrawPixels = intelDrawPixels;
+ functions->ReadPixels = intelReadPixels;
}
+
projects / mesa.git / blobdiff