libretro/ppsspp
1
0
Fork 0
mirror of https://github.com/libretro/ppsspp.git synced 2025-02-09 02:26:19 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Fix GL_ZERO transparencies

Browse Source
This commit is contained in:
Henrik Rydgard 2012-12-18 00:02:04 +01:00
parent 2937928237
commit ba476264db
1 changed files with 7 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
GPU/GLES/TransformPipeline.cpp
View File

@ -556,34 +556,34 @@ void GLES_GPU::TransformAndDrawPrim(void *verts, void *inds, int prim, int verte
// All is valid, no blendcolor needed
glstate.blendFunc.set(aLookup[blendFuncA], bLookup[blendFuncB]);
} else {
GLuint glBlendFuncA = blendFuncA == GE_SRCBLEND_FIXA ? 0 : aLookup[blendFuncA];
GLuint glBlendFuncB = blendFuncB == GE_DSTBLEND_FIXB ? 0 : bLookup[blendFuncB];
GLuint glBlendFuncA = blendFuncA == GE_SRCBLEND_FIXA ? GL_INVALID_ENUM : aLookup[blendFuncA];
GLuint glBlendFuncB = blendFuncB == GE_DSTBLEND_FIXB ? GL_INVALID_ENUM : bLookup[blendFuncB];
u32 fixA = gstate.getFixA();
u32 fixB = gstate.getFixB();
// Shortcut by using GL_ONE where possible, no need to set blendcolor
if (!glBlendFuncA && blendFuncA == GE_SRCBLEND_FIXA) {
if (glBlendFuncA == GL_INVALID_ENUM && blendFuncA == GE_SRCBLEND_FIXA) {
if (fixA == 0xFFFFFF)
glBlendFuncA = GL_ONE;
else if (fixA == 0)
glBlendFuncA = GL_ZERO;
}
if (!glBlendFuncB && blendFuncB == GE_DSTBLEND_FIXB) {
if (glBlendFuncB == GL_INVALID_ENUM && blendFuncB == GE_DSTBLEND_FIXB) {
if (fixB == 0xFFFFFF)
glBlendFuncB = GL_ONE;
else if (fixB == 0)
glBlendFuncB = GL_ZERO;
}
if (!glBlendFuncA && glBlendFuncB) {
if (glBlendFuncA == GL_INVALID_ENUM && glBlendFuncB != GL_INVALID_ENUM) {
// Can use blendcolor trivially.
const float blendColor[4] = {(fixA & 0xFF)/255.0f, ((fixA >> 8) & 0xFF)/255.0f, ((fixA >> 16) & 0xFF)/255.0f, 1.0f};
glstate.blendColor.set(blendColor);
glBlendFuncA = GL_CONSTANT_COLOR;
} else if (glBlendFuncA && !glBlendFuncB) {
} else if (glBlendFuncA != GL_INVALID_ENUM && glBlendFuncB == GL_INVALID_ENUM) {
// Can use blendcolor trivially.
const float blendColor[4] = {(fixB & 0xFF)/255.0f, ((fixB >> 8) & 0xFF)/255.0f, ((fixB >> 16) & 0xFF)/255.0f, 1.0f};
glstate.blendColor.set(blendColor);
glBlendFuncB = GL_CONSTANT_COLOR;
} else if (!glBlendFuncA && !glBlendFuncB) { // Should also check for approximate equality
} else if (glBlendFuncA == GL_INVALID_ENUM && glBlendFuncB == GL_INVALID_ENUM) { // Should also check for approximate equality
if (fixA == (fixB ^ 0xFFFFFF)) {
glBlendFuncA = GL_CONSTANT_COLOR;
glBlendFuncB = GL_ONE_MINUS_CONSTANT_COLOR;