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Diffstat (limited to 'src/mesa/drivers/dri/r128/r128_state.c')
-rw-r--r--src/mesa/drivers/dri/r128/r128_state.c194
1 files changed, 193 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/r128/r128_state.c b/src/mesa/drivers/dri/r128/r128_state.c
index f6c6504566..80771ae29b 100644
--- a/src/mesa/drivers/dri/r128/r128_state.c
+++ b/src/mesa/drivers/dri/r128/r128_state.c
@@ -251,6 +251,179 @@ static void r128DDBlendFuncSeparate( GLcontext *ctx,
rmesa->new_state |= R128_NEW_ALPHA;
}
+/* =============================================================
+ * Stencil
+ */
+
+static void
+r128DDStencilFuncSeparate( GLcontext *ctx, GLenum face, GLenum func,
+ GLint ref, GLuint mask )
+{
+ r128ContextPtr rmesa = R128_CONTEXT(ctx);
+ GLuint refmask = ((ctx->Stencil.Ref[0] << 0) |
+ (ctx->Stencil.ValueMask[0] << 16) |
+ (ctx->Stencil.WriteMask[0] << 24));
+ GLuint z = rmesa->setup.z_sten_cntl_c;
+
+ z &= ~R128_STENCIL_TEST_MASK;
+ switch ( ctx->Stencil.Function[0] ) {
+ case GL_NEVER:
+ z |= R128_STENCIL_TEST_NEVER;
+ break;
+ case GL_LESS:
+ z |= R128_STENCIL_TEST_LESS;
+ break;
+ case GL_EQUAL:
+ z |= R128_STENCIL_TEST_EQUAL;
+ break;
+ case GL_LEQUAL:
+ z |= R128_STENCIL_TEST_LESSEQUAL;
+ break;
+ case GL_GREATER:
+ z |= R128_STENCIL_TEST_GREATER;
+ break;
+ case GL_NOTEQUAL:
+ z |= R128_STENCIL_TEST_NEQUAL;
+ break;
+ case GL_GEQUAL:
+ z |= R128_STENCIL_TEST_GREATEREQUAL;
+ break;
+ case GL_ALWAYS:
+ z |= R128_STENCIL_TEST_ALWAYS;
+ break;
+ }
+
+ if ( rmesa->setup.sten_ref_mask_c != refmask ) {
+ rmesa->setup.sten_ref_mask_c = refmask;
+ rmesa->dirty |= R128_UPLOAD_MASKS;
+ }
+ if ( rmesa->setup.z_sten_cntl_c != z ) {
+ rmesa->setup.z_sten_cntl_c = z;
+ rmesa->dirty |= R128_UPLOAD_CONTEXT;
+ }
+}
+
+static void
+r128DDStencilMaskSeparate( GLcontext *ctx, GLenum face, GLuint mask )
+{
+ r128ContextPtr rmesa = R128_CONTEXT(ctx);
+ GLuint refmask = ((ctx->Stencil.Ref[0] << 0) |
+ (ctx->Stencil.ValueMask[0] << 16) |
+ (ctx->Stencil.WriteMask[0] << 24));
+
+ if ( rmesa->setup.sten_ref_mask_c != refmask ) {
+ rmesa->setup.sten_ref_mask_c = refmask;
+ rmesa->dirty |= R128_UPLOAD_MASKS;
+ }
+}
+
+static void r128DDStencilOpSeparate( GLcontext *ctx, GLenum face, GLenum fail,
+ GLenum zfail, GLenum zpass )
+{
+ r128ContextPtr rmesa = R128_CONTEXT(ctx);
+ GLuint z = rmesa->setup.z_sten_cntl_c;
+ GLboolean ok = 1;
+
+ if (!( ctx->Visual.stencilBits > 0 && ctx->Visual.depthBits == 24 ))
+ return;
+
+ z &= ~(R128_STENCIL_S_FAIL_MASK | R128_STENCIL_ZPASS_MASK |
+ R128_STENCIL_ZFAIL_MASK);
+
+ switch ( ctx->Stencil.FailFunc[0] ) {
+ case GL_KEEP:
+ z |= R128_STENCIL_S_FAIL_KEEP;
+ break;
+ case GL_ZERO:
+ z |= R128_STENCIL_S_FAIL_ZERO;
+ ok = 0; /* Hardware bug? ZERO maps to KEEP */
+ break;
+ case GL_REPLACE:
+ z |= R128_STENCIL_S_FAIL_REPLACE;
+ ok = 0; /* Hardware bug? REPLACE maps to KEEP */
+ break;
+ case GL_INCR:
+ z |= R128_STENCIL_S_FAIL_INC;
+ break;
+ case GL_DECR:
+ z |= R128_STENCIL_S_FAIL_DEC;
+ break;
+ case GL_INVERT:
+ z |= R128_STENCIL_S_FAIL_INV;
+ ok = 0; /* Hardware bug? INV maps to ZERO */
+ break;
+ }
+
+ switch ( ctx->Stencil.ZFailFunc[0] ) {
+ case GL_KEEP:
+ z |= R128_STENCIL_ZFAIL_KEEP;
+ ok = 0; /* Hardware bug? KEEP maps to ZERO */
+ break;
+ case GL_ZERO:
+ z |= R128_STENCIL_ZFAIL_ZERO;
+ break;
+ case GL_REPLACE:
+ z |= R128_STENCIL_ZFAIL_REPLACE;
+ break;
+ case GL_INCR:
+ z |= R128_STENCIL_ZFAIL_INC;
+ break;
+ case GL_DECR:
+ z |= R128_STENCIL_ZFAIL_DEC;
+ break;
+ case GL_INVERT:
+ z |= R128_STENCIL_ZFAIL_INV;
+ ok = 0; /* Hardware bug? INV maps to ZERO */
+ break;
+ }
+
+ switch ( ctx->Stencil.ZPassFunc[0] ) {
+ case GL_KEEP:
+ z |= R128_STENCIL_ZPASS_KEEP;
+ ok = 0; /* Hardware bug? KEEP maps to ZERO */
+ break;
+ case GL_ZERO:
+ z |= R128_STENCIL_ZPASS_ZERO;
+ break;
+ case GL_REPLACE:
+ z |= R128_STENCIL_ZPASS_REPLACE;
+ break;
+ case GL_INCR:
+ z |= R128_STENCIL_ZPASS_INC;
+ break;
+ case GL_DECR:
+ z |= R128_STENCIL_ZPASS_DEC;
+ ok = 0; /* Hardware bug? DEC maps to INCR_WRAP */
+ break;
+ case GL_INVERT:
+ z |= R128_STENCIL_ZPASS_INV;
+ ok = 0; /* Hardware bug? INV maps to ZERO */
+ break;
+ }
+
+ /* XXX: Now that we know whether we can do the given funcs successfully
+ * (according to testing done with a modified stencilwrap test), go
+ * ahead and drop that knowledge on the floor. While fallbacks remain
+ * broken, they make the situation even worse (in test apps, at least) than
+ * failing in just the stencil part.
+ */
+ /*FALLBACK( rmesa, R128_FALLBACK_STENCIL, !ok );*/
+
+ if ( rmesa->setup.z_sten_cntl_c != z ) {
+ rmesa->setup.z_sten_cntl_c = z;
+ rmesa->dirty |= R128_UPLOAD_CONTEXT;
+ }
+}
+
+static void r128DDClearStencil( GLcontext *ctx, GLint s )
+{
+ r128ContextPtr rmesa = R128_CONTEXT(ctx);
+
+ if (ctx->Visual.stencilBits > 0 && ctx->Visual.depthBits == 24) {
+ rmesa->ClearDepth &= 0x00ffffff;
+ rmesa->ClearDepth |= ctx->Stencil.Clear << 24;
+ }
+}
/* =============================================================
* Depth testing
@@ -339,6 +512,7 @@ static void r128DDClearDepth( GLcontext *ctx, GLclampd d )
break;
case R128_Z_PIX_WIDTH_24:
rmesa->ClearDepth = d * 0x00ffffff;
+ rmesa->ClearDepth |= ctx->Stencil.Clear << 24;
break;
case R128_Z_PIX_WIDTH_32:
rmesa->ClearDepth = d * 0xffffffff;
@@ -853,7 +1027,21 @@ static void r128DDEnable( GLcontext *ctx, GLenum cap, GLboolean state )
case GL_STENCIL_TEST:
FLUSH_BATCH( rmesa );
- FALLBACK( rmesa, R128_FALLBACK_STENCIL, state );
+ if ( ctx->Visual.stencilBits > 0 && ctx->Visual.depthBits == 24 ) {
+ if ( state ) {
+ rmesa->setup.tex_cntl_c |= R128_STENCIL_ENABLE;
+ /* Reset the fallback (if any) for bad stencil funcs */
+ r128DDStencilOpSeparate( ctx, 0, ctx->Stencil.FailFunc[0],
+ ctx->Stencil.ZFailFunc[0],
+ ctx->Stencil.ZPassFunc[0] );
+ } else {
+ rmesa->setup.tex_cntl_c &= ~R128_STENCIL_ENABLE;
+ FALLBACK( rmesa, R128_FALLBACK_STENCIL, GL_FALSE );
+ }
+ rmesa->dirty |= R128_UPLOAD_CONTEXT;
+ } else {
+ FALLBACK( rmesa, R128_FALLBACK_STENCIL, state );
+ }
break;
case GL_TEXTURE_1D:
@@ -1184,6 +1372,7 @@ void r128DDInitStateFuncs( GLcontext *ctx )
ctx->Driver.ClearIndex = NULL;
ctx->Driver.ClearColor = r128DDClearColor;
+ ctx->Driver.ClearStencil = r128DDClearStencil;
ctx->Driver.DrawBuffer = r128DDDrawBuffer;
ctx->Driver.ReadBuffer = r128DDReadBuffer;
@@ -1208,6 +1397,9 @@ void r128DDInitStateFuncs( GLcontext *ctx )
ctx->Driver.RenderMode = r128DDRenderMode;
ctx->Driver.Scissor = r128DDScissor;
ctx->Driver.ShadeModel = r128DDShadeModel;
+ ctx->Driver.StencilFuncSeparate = r128DDStencilFuncSeparate;
+ ctx->Driver.StencilMaskSeparate = r128DDStencilMaskSeparate;
+ ctx->Driver.StencilOpSeparate = r128DDStencilOpSeparate;
ctx->Driver.DepthRange = r128DepthRange;
ctx->Driver.Viewport = r128Viewport;
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-02 19:28:33 +0000