Module: Mesa Branch: master Commit: ce9c5a1a27b4e59dbf49b066baaae6ef371b04bc URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=ce9c5a1a27b4e59dbf49b066baaae6ef371b04bc
Author: Alex Deucher <[email protected]> Date: Mon Jul 20 15:27:28 2009 -0400 r600: add logicop support --- src/mesa/drivers/dri/r600/r700_state.c | 43 ++++++++++++++++++++++++++++++- 1 files changed, 41 insertions(+), 2 deletions(-) diff --git a/src/mesa/drivers/dri/r600/r700_state.c b/src/mesa/drivers/dri/r600/r700_state.c index eda224d..1ccd793 100644 --- a/src/mesa/drivers/dri/r600/r700_state.c +++ b/src/mesa/drivers/dri/r600/r700_state.c @@ -30,6 +30,7 @@ #include "main/imports.h" #include "main/enums.h" #include "main/macros.h" +#include "main/context.h" #include "main/dd.h" #include "main/simple_list.h" @@ -322,6 +323,43 @@ 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; +} + +/** + * Used internally to update the r300->hw hardware state to match the + * current OpenGL state. + */ +static void r700SetLogicOpState(GLcontext *ctx) +{ + R700_CHIP_CONTEXT *r700 = (R700_CHIP_CONTEXT*)(&R700_CONTEXT(ctx)->hw); + + if (RGBA_LOGICOP_ENABLED(ctx)) + SETfield(r700->CB_COLOR_CONTROL.u32All, + translate_logicop(ctx->Color.LogicOp), ROP3_shift, ROP3_mask); + else + SETfield(r700->CB_COLOR_CONTROL.u32All, 0xCC, ROP3_shift, ROP3_mask); +} + +/** + * Called by Mesa when an application program changes the LogicOp state + * via glLogicOp. + */ +static void r700LogicOpcode(GLcontext *ctx, GLenum logicop) +{ + if (RGBA_LOGICOP_ENABLED(ctx)) + r700SetLogicOpState(ctx); +} + static void r700UpdateCulling(GLcontext * ctx) { R700_CHIP_CONTEXT *r700 = (R700_CHIP_CONTEXT*)(&R700_CONTEXT(ctx)->hw); @@ -397,7 +435,7 @@ static void r700Enable(GLcontext * ctx, GLenum cap, GLboolean state) //--------- //r700SetAlphaState(ctx); break; case GL_COLOR_LOGIC_OP: - //r700SetLogicOpState(ctx); + r700SetLogicOpState(ctx); /* fall-through, because logic op overrides blending */ case GL_BLEND: //r700SetBlendState(ctx); @@ -1083,7 +1121,7 @@ void r700InitState(GLcontext * ctx) //------------------- if (context->radeon.radeonScreen->chip_family >= CHIP_FAMILY_RV770) SETfield(r700->SPI_THREAD_GROUPING.u32All, 1, PS_GROUPING_shift, PS_GROUPING_mask); - SETfield(r700->CB_COLOR_CONTROL.u32All, 0xCC, ROP3_shift, ROP3_mask); + r700SetLogicOpState(ctx); CLEARbit(r700->CB_COLOR_CONTROL.u32All, PER_MRT_BLEND_bit); r700->DB_SHADER_CONTROL.u32All = 0; @@ -1228,6 +1266,7 @@ void r700InitStateFuncs(struct dd_function_table *functions) //----------------- functions->Fogfv = r700Fogfv; functions->FrontFace = r700FrontFace; functions->ShadeModel = r700ShadeModel; + functions->LogicOpcode = r700LogicOpcode; /* ARB_point_parameters */ functions->PointParameterfv = r700PointParameter; _______________________________________________ mesa-commit mailing list [email protected] http://lists.freedesktop.org/mailman/listinfo/mesa-commit
