diff options
Diffstat (limited to 'src/mesa')
| -rw-r--r-- | src/mesa/drivers/dri/r600/r700_state.c | 42 |
1 files changed, 37 insertions, 5 deletions
diff --git a/src/mesa/drivers/dri/r600/r700_state.c b/src/mesa/drivers/dri/r600/r700_state.c index e0a57425917..b75f5315036 100644 --- a/src/mesa/drivers/dri/r600/r700_state.c +++ b/src/mesa/drivers/dri/r600/r700_state.c @@ -600,14 +600,46 @@ static void r700BlendFuncSeparate(GLcontext * ctx, /** * Translate LogicOp enums into hardware representation. - * Both use a very logical bit-wise layout, but unfortunately the order - * of bits is reversed. */ static GLuint translate_logicop(GLenum logicop) { - GLuint bits = logicop - GL_CLEAR; - bits = ((bits & 1) << 3) | ((bits & 2) << 1) | ((bits & 4) >> 1) | ((bits & 8) >> 3); - return bits; + switch (logicop) { + case GL_CLEAR: + return 0x00; + case GL_SET: + return 0xff; + case GL_COPY: + return 0xcc; + case GL_COPY_INVERTED: + return 0x33; + case GL_NOOP: + return 0xaa; + case GL_INVERT: + return 0x55; + case GL_AND: + return 0x88; + case GL_NAND: + return 0x77; + case GL_OR: + return 0xee; + case GL_NOR: + return 0x11; + case GL_XOR: + return 0x66; + case GL_EQUIV: + return 0xaa; + case GL_AND_REVERSE: + return 0x44; + case GL_AND_INVERTED: + return 0x22; + case GL_OR_REVERSE: + return 0xdd; + case GL_OR_INVERTED: + return 0xbb; + default: + fprintf(stderr, "unknown blend logic operation %x\n", logicop); + return 0xcc; + } } /** |