/**
* Check if any fragment operations are in effect which might effect
* glDraw/CopyPixels.
*/
bool
intel_check_blit_fragment_ops(struct gl_context * ctx, bool src_alpha_is_one)
{
if (ctx->NewState)
_mesa_update_state(ctx);
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;
}
if (ctx->Texture._MaxEnabledTexImageUnit != -1) {
DBG("fallback due to texturing\n");
return false;
}
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;
}
if (ctx->Color.AlphaEnabled) {
DBG("fallback due to alpha\n");
return false;
}
if (ctx->Depth.Test) {
DBG("fallback due to depth test\n");
return false;
}
if (ctx->Fog.Enabled) {
DBG("fallback due to fog\n");
return 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->Pixel.ZoomX != 1.0F || ctx->Pixel.ZoomY != 1.0F) {
DBG("fallback due to pixel zoom\n");
return false;
}
if (ctx->RenderMode != GL_RENDER) {
DBG("fallback due to render mode\n");
return false;
}
return true;
}
/**
* Check if any fragment operations are in effect which might effect
* glDraw/CopyPixels.
*/
GLboolean
intel_check_blit_fragment_ops(struct gl_context * ctx, GLboolean src_alpha_is_one)
{
if (ctx->NewState)
_mesa_update_state(ctx);
if (ctx->FragmentProgram._Enabled) {
DBG("fallback due to fragment program\n");
return GL_FALSE;
}
if (ctx->Color.BlendEnabled &&
(effective_func(ctx->Color.BlendSrcRGB, src_alpha_is_one) != GL_ONE ||
effective_func(ctx->Color.BlendDstRGB, src_alpha_is_one) != GL_ZERO ||
ctx->Color.BlendEquationRGB != GL_FUNC_ADD ||
effective_func(ctx->Color.BlendSrcA, src_alpha_is_one) != GL_ONE ||
effective_func(ctx->Color.BlendDstA, src_alpha_is_one) != GL_ZERO ||
ctx->Color.BlendEquationA != GL_FUNC_ADD)) {
DBG("fallback due to blend\n");
return GL_FALSE;
}
if (ctx->Texture._EnabledUnits) {
DBG("fallback due to texturing\n");
return GL_FALSE;
}
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 GL_FALSE;
}
if (ctx->Color.AlphaEnabled) {
DBG("fallback due to alpha\n");
return GL_FALSE;
}
if (ctx->Depth.Test) {
DBG("fallback due to depth test\n");
return GL_FALSE;
}
if (ctx->Fog.Enabled) {
DBG("fallback due to fog\n");
return GL_FALSE;
}
if (ctx->_ImageTransferState) {
DBG("fallback due to image transfer\n");
return GL_FALSE;
}
if (ctx->Stencil._Enabled) {
DBG("fallback due to image stencil\n");
return GL_FALSE;
}
if (ctx->RenderMode != GL_RENDER) {
DBG("fallback due to render mode\n");
return GL_FALSE;
}
return GL_TRUE;
}
