Mesa (master): r600: add stencil support
Alex Deucher
agd5f at kemper.freedesktop.org
Tue Jul 21 21:11:49 UTC 2009
Module: Mesa
Branch: master
Commit: 72a3d8845f55b4a82f7e3734c8b3aa51b65e220d
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=72a3d8845f55b4a82f7e3734c8b3aa51b65e220d
Author: Alex Deucher <alexdeucher at gmail.com>
Date: Tue Jul 21 17:07:17 2009 -0400
r600: add stencil support
---
src/mesa/drivers/dri/r600/r700_state.c | 161 +++++++++++++++++++++++++++++---
1 files changed, 146 insertions(+), 15 deletions(-)
diff --git a/src/mesa/drivers/dri/r600/r700_state.c b/src/mesa/drivers/dri/r600/r700_state.c
index 186b811..a2ddebb 100644
--- a/src/mesa/drivers/dri/r600/r700_state.c
+++ b/src/mesa/drivers/dri/r600/r700_state.c
@@ -59,6 +59,7 @@
static void r700SetClipPlaneState(GLcontext * ctx, GLenum cap, GLboolean state);
static void r700UpdatePolygonMode(GLcontext * ctx);
static void r700SetPolygonOffsetState(GLcontext * ctx, GLboolean state);
+static void r700SetStencilState(GLcontext * ctx, GLboolean state);
void r700SetDefaultStates(context_t *context) //--------------------
{
@@ -273,40 +274,40 @@ static void r700SetDepthState(GLcontext * ctx)
switch (ctx->Depth.Func)
{
- case GL_NEVER:
- SETfield(r700->DB_DEPTH_CONTROL.u32All, FRAG_NEVER,
+ case GL_NEVER:
+ SETfield(r700->DB_DEPTH_CONTROL.u32All, FRAG_NEVER,
ZFUNC_shift, ZFUNC_mask);
break;
case GL_LESS:
- SETfield(r700->DB_DEPTH_CONTROL.u32All, FRAG_LESS,
- ZFUNC_shift, ZFUNC_mask);
+ SETfield(r700->DB_DEPTH_CONTROL.u32All, FRAG_LESS,
+ ZFUNC_shift, ZFUNC_mask);
break;
case GL_EQUAL:
- SETfield(r700->DB_DEPTH_CONTROL.u32All, FRAG_EQUAL,
+ SETfield(r700->DB_DEPTH_CONTROL.u32All, FRAG_EQUAL,
ZFUNC_shift, ZFUNC_mask);
break;
case GL_LEQUAL:
- SETfield(r700->DB_DEPTH_CONTROL.u32All, FRAG_LEQUAL,
+ SETfield(r700->DB_DEPTH_CONTROL.u32All, FRAG_LEQUAL,
ZFUNC_shift, ZFUNC_mask);
break;
case GL_GREATER:
- SETfield(r700->DB_DEPTH_CONTROL.u32All, FRAG_GREATER,
- ZFUNC_shift, ZFUNC_mask);
+ SETfield(r700->DB_DEPTH_CONTROL.u32All, FRAG_GREATER,
+ ZFUNC_shift, ZFUNC_mask);
break;
case GL_NOTEQUAL:
- SETfield(r700->DB_DEPTH_CONTROL.u32All, FRAG_NOTEQUAL,
+ SETfield(r700->DB_DEPTH_CONTROL.u32All, FRAG_NOTEQUAL,
ZFUNC_shift, ZFUNC_mask);
break;
case GL_GEQUAL:
- SETfield(r700->DB_DEPTH_CONTROL.u32All, FRAG_GEQUAL,
+ SETfield(r700->DB_DEPTH_CONTROL.u32All, FRAG_GEQUAL,
ZFUNC_shift, ZFUNC_mask);
break;
case GL_ALWAYS:
- SETfield(r700->DB_DEPTH_CONTROL.u32All, FRAG_ALWAYS,
+ SETfield(r700->DB_DEPTH_CONTROL.u32All, FRAG_ALWAYS,
ZFUNC_shift, ZFUNC_mask);
break;
default:
- SETfield(r700->DB_DEPTH_CONTROL.u32All, FRAG_ALWAYS,
+ SETfield(r700->DB_DEPTH_CONTROL.u32All, FRAG_ALWAYS,
ZFUNC_shift, ZFUNC_mask);
break;
}
@@ -710,7 +711,7 @@ static void r700Enable(GLcontext * ctx, GLenum cap, GLboolean state) //---------
r700SetDepthState(ctx);
break;
case GL_STENCIL_TEST:
- //r700SetStencilState(ctx, state);
+ r700SetStencilState(ctx, state);
break;
case GL_CULL_FACE:
r700UpdateCulling(ctx);
@@ -863,24 +864,154 @@ static void r700PointParameter(GLcontext * ctx, GLenum pname, const GLfloat * pa
}
}
+static int translate_stencil_func(int func)
+{
+ switch (func) {
+ case GL_NEVER:
+ return REF_NEVER;
+ case GL_LESS:
+ return REF_LESS;
+ case GL_EQUAL:
+ return REF_EQUAL;
+ case GL_LEQUAL:
+ return REF_LEQUAL;
+ case GL_GREATER:
+ return REF_GREATER;
+ case GL_NOTEQUAL:
+ return REF_NOTEQUAL;
+ case GL_GEQUAL:
+ return REF_GEQUAL;
+ case GL_ALWAYS:
+ return REF_ALWAYS;
+ }
+ return 0;
+}
+
+static int translate_stencil_op(int op)
+{
+ switch (op) {
+ case GL_KEEP:
+ return STENCIL_KEEP;
+ case GL_ZERO:
+ return STENCIL_ZERO;
+ case GL_REPLACE:
+ return STENCIL_REPLACE;
+ case GL_INCR:
+ return STENCIL_INCR_CLAMP;
+ case GL_DECR:
+ return STENCIL_DECR_CLAMP;
+ case GL_INCR_WRAP_EXT:
+ return STENCIL_INCR_WRAP;
+ case GL_DECR_WRAP_EXT:
+ return STENCIL_DECR_WRAP;
+ case GL_INVERT:
+ return STENCIL_INVERT;
+ default:
+ WARN_ONCE("Do not know how to translate stencil op");
+ return STENCIL_KEEP;
+ }
+ return 0;
+}
+
+static void r700SetStencilState(GLcontext * ctx, GLboolean state)
+{
+ context_t *context = R700_CONTEXT(ctx);
+ R700_CHIP_CONTEXT *r700 = (R700_CHIP_CONTEXT*)(&context->hw);
+ GLboolean hw_stencil = GL_FALSE;
+
+ //fixme
+ //r300CatchStencilFallback(ctx);
+
+ if (ctx->DrawBuffer) {
+ struct radeon_renderbuffer *rrbStencil
+ = radeon_get_renderbuffer(ctx->DrawBuffer, BUFFER_STENCIL);
+ hw_stencil = (rrbStencil && rrbStencil->bo);
+ }
+
+ if (hw_stencil) {
+ if (state)
+ SETbit(r700->DB_DEPTH_CONTROL.u32All, STENCIL_ENABLE_bit);
+ else
+ CLEARbit(r700->DB_DEPTH_CONTROL.u32All, STENCIL_ENABLE_bit);
+ }
+}
+
static void r700StencilFuncSeparate(GLcontext * ctx, GLenum face,
GLenum func, GLint ref, GLuint mask) //---------------------
{
-}
+ context_t *context = R700_CONTEXT(ctx);
+ R700_CHIP_CONTEXT *r700 = (R700_CHIP_CONTEXT*)(&context->hw);
+ const unsigned back = ctx->Stencil._BackFace;
+
+ //fixme
+ //r300CatchStencilFallback(ctx);
+
+ //front
+ SETfield(r700->DB_STENCILREFMASK.u32All, ctx->Stencil.Ref[0],
+ STENCILREF_shift, STENCILREF_mask);
+ SETfield(r700->DB_STENCILREFMASK.u32All, ctx->Stencil.ValueMask[0],
+ STENCILMASK_shift, STENCILMASK_mask);
+
+ SETfield(r700->DB_DEPTH_CONTROL.u32All, translate_stencil_func(ctx->Stencil.Function[0]),
+ STENCILFUNC_shift, STENCILFUNC_mask);
+ //back
+ SETfield(r700->DB_STENCILREFMASK_BF.u32All, ctx->Stencil.Ref[back],
+ STENCILREF_BF_shift, STENCILREF_BF_mask);
+ SETfield(r700->DB_STENCILREFMASK_BF.u32All, ctx->Stencil.ValueMask[back],
+ STENCILMASK_BF_shift, STENCILMASK_BF_mask);
+
+ SETfield(r700->DB_DEPTH_CONTROL.u32All, translate_stencil_func(ctx->Stencil.Function[back]),
+ STENCILFUNC_BF_shift, STENCILFUNC_BF_mask);
+
+}
static void r700StencilMaskSeparate(GLcontext * ctx, GLenum face, GLuint mask) //--------------
{
+ context_t *context = R700_CONTEXT(ctx);
+ R700_CHIP_CONTEXT *r700 = (R700_CHIP_CONTEXT*)(&context->hw);
+ const unsigned back = ctx->Stencil._BackFace;
+
+ //fixme
+ //r300CatchStencilFallback(ctx);
+
+ // front
+ SETfield(r700->DB_STENCILREFMASK.u32All, ctx->Stencil.WriteMask[0],
+ STENCILWRITEMASK_shift, STENCILWRITEMASK_mask);
+
+ // back
+ SETfield(r700->DB_STENCILREFMASK_BF.u32All, ctx->Stencil.WriteMask[back],
+ STENCILWRITEMASK_BF_shift, STENCILWRITEMASK_BF_mask);
+
}
static void r700StencilOpSeparate(GLcontext * ctx, GLenum face,
GLenum fail, GLenum zfail, GLenum zpass) //--------------------
{
+ context_t *context = R700_CONTEXT(ctx);
+ R700_CHIP_CONTEXT *r700 = (R700_CHIP_CONTEXT*)(&context->hw);
+ const unsigned back = ctx->Stencil._BackFace;
+
+ //fixme
+ //r300CatchStencilFallback(ctx);
+
+ SETfield(r700->DB_DEPTH_CONTROL.u32All, translate_stencil_op(ctx->Stencil.FailFunc[0]),
+ STENCILFAIL_shift, STENCILFAIL_mask);
+ SETfield(r700->DB_DEPTH_CONTROL.u32All, translate_stencil_op(ctx->Stencil.ZFailFunc[0]),
+ STENCILZFAIL_shift, STENCILZFAIL_mask);
+ SETfield(r700->DB_DEPTH_CONTROL.u32All, translate_stencil_op(ctx->Stencil.ZPassFunc[0]),
+ STENCILZPASS_shift, STENCILZPASS_mask);
+
+ SETfield(r700->DB_DEPTH_CONTROL.u32All, translate_stencil_op(ctx->Stencil.FailFunc[back]),
+ STENCILFAIL_BF_shift, STENCILFAIL_BF_mask);
+ SETfield(r700->DB_DEPTH_CONTROL.u32All, translate_stencil_op(ctx->Stencil.ZFailFunc[back]),
+ STENCILZFAIL_BF_shift, STENCILZFAIL_BF_mask);
+ SETfield(r700->DB_DEPTH_CONTROL.u32All, translate_stencil_op(ctx->Stencil.ZPassFunc[back]),
+ STENCILZPASS_BF_shift, STENCILZPASS_BF_mask);
}
static void r700UpdateWindow(GLcontext * ctx, int id) //--------------------
{
-
context_t *context = R700_CONTEXT(ctx);
R700_CHIP_CONTEXT *r700 = (R700_CHIP_CONTEXT*)(&context->hw);
__DRIdrawablePrivate *dPriv = radeon_get_drawable(&context->radeon);
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