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r600: add logicop support

This commit is contained in:
Alex Deucher 2009-07-20 15:27:28 -04:00
parent cad82cd063
commit ce9c5a1a27
1 changed files with 41 additions and 2 deletions
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43
src/mesa/drivers/dri/r600/r700_state.c
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@ -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;