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-rw-r--r--src/mesa/drivers/dri/r300/r300_context.h10
-rw-r--r--src/mesa/drivers/dri/r300/r300_ioctl.c35
-rw-r--r--src/mesa/drivers/dri/r300/r300_reg.h3
-rw-r--r--src/mesa/drivers/dri/r300/r300_state.c70
4 files changed, 84 insertions, 34 deletions
diff --git a/src/mesa/drivers/dri/r300/r300_context.h b/src/mesa/drivers/dri/r300/r300_context.h
index d956848dd11..75aeb3eff71 100644
--- a/src/mesa/drivers/dri/r300/r300_context.h
+++ b/src/mesa/drivers/dri/r300/r300_context.h
@@ -500,6 +500,12 @@ struct r300_depthbuffer_state {
GLfloat scale;
};
+struct r300_stencilbuffer_state {
+ GLuint clear;
+ GLboolean hw_stencil;
+
+};
+
struct r300_vap_reg_state {
/* input register assigments */
int i_coords;
@@ -678,7 +684,9 @@ struct r300_state {
struct {
int transform_offset; /* Transform matrix offset, -1 if none */
} vap_param; /* vertex processor parameter allocation - tells where to write parameters */
- int hw_stencil;
+
+ struct r300_stencilbuffer_state stencil;
+
};
diff --git a/src/mesa/drivers/dri/r300/r300_ioctl.c b/src/mesa/drivers/dri/r300/r300_ioctl.c
index 45cff5b7eb9..31515c0609d 100644
--- a/src/mesa/drivers/dri/r300/r300_ioctl.c
+++ b/src/mesa/drivers/dri/r300/r300_ioctl.c
@@ -58,6 +58,7 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#define CLEARBUFFER_COLOR 0x1
#define CLEARBUFFER_DEPTH 0x2
+#define CLEARBUFFER_STENCIL 0x4
static void r300ClearBuffer(r300ContextPtr r300, int flags, int buffer)
{
@@ -205,8 +206,10 @@ static void r300ClearBuffer(r300ContextPtr r300, int flags, int buffer)
R300_STATECHANGE(r300, zs);
if (flags & CLEARBUFFER_DEPTH) {
- r300->hw.zs.cmd[R300_ZS_CNTL_0] = 0x6; // test and write
- r300->hw.zs.cmd[R300_ZS_CNTL_1] = (R300_ZS_ALWAYS<<R300_RB3D_ZS1_DEPTH_FUNC_SHIFT);
+ r300->hw.zs.cmd[R300_ZS_CNTL_0] &= R300_RB3D_STENCIL_ENABLE;
+ r300->hw.zs.cmd[R300_ZS_CNTL_0] |= 0x6; // test and write
+ r300->hw.zs.cmd[R300_ZS_CNTL_1] &= ~(R300_ZS_MASK << R300_RB3D_ZS1_DEPTH_FUNC_SHIFT);
+ r300->hw.zs.cmd[R300_ZS_CNTL_1] |= (R300_ZS_ALWAYS<<R300_RB3D_ZS1_DEPTH_FUNC_SHIFT);
/*
R300_STATECHANGE(r300, zb);
r300->hw.zb.cmd[R300_ZB_OFFSET] =
@@ -217,8 +220,27 @@ static void r300ClearBuffer(r300ContextPtr r300, int flags, int buffer)
r300->radeon.radeonScreen->depthPitch;
*/
} else {
- r300->hw.zs.cmd[R300_ZS_CNTL_0] = 0; // disable
- r300->hw.zs.cmd[R300_ZS_CNTL_1] = 0;
+ r300->hw.zs.cmd[R300_ZS_CNTL_0] &= R300_RB3D_STENCIL_ENABLE;
+ r300->hw.zs.cmd[R300_ZS_CNTL_0] |= R300_RB3D_Z_DISABLED_1; // disable
+ r300->hw.zs.cmd[R300_ZS_CNTL_1] &= ~(R300_ZS_MASK << R300_RB3D_ZS1_DEPTH_FUNC_SHIFT);
+ }
+
+ R300_STATECHANGE(r300, zs);
+ if (flags & CLEARBUFFER_STENCIL) {
+ r300->hw.zs.cmd[R300_ZS_CNTL_0] &= ~R300_RB3D_STENCIL_ENABLE;
+ r300->hw.zs.cmd[R300_ZS_CNTL_0] |= R300_RB3D_STENCIL_ENABLE;
+ r300->hw.zs.cmd[R300_ZS_CNTL_1] &=
+ ~((R300_ZS_MASK << R300_RB3D_ZS1_FRONT_FUNC_SHIFT) | (R300_ZS_MASK << R300_RB3D_ZS1_BACK_FUNC_SHIFT));
+ r300->hw.zs.cmd[R300_ZS_CNTL_1] |=
+ (R300_ZS_ALWAYS<<R300_RB3D_ZS1_FRONT_FUNC_SHIFT) |
+ (R300_ZS_REPLACE<<R300_RB3D_ZS1_FRONT_FAIL_OP_SHIFT) |
+ (R300_ZS_REPLACE<<R300_RB3D_ZS1_FRONT_ZPASS_OP_SHIFT) |
+ (R300_ZS_REPLACE<<R300_RB3D_ZS1_FRONT_ZFAIL_OP_SHIFT) |
+ (R300_ZS_ALWAYS<<R300_RB3D_ZS1_BACK_FUNC_SHIFT) |
+ (R300_ZS_REPLACE<<R300_RB3D_ZS1_BACK_FAIL_OP_SHIFT) |
+ (R300_ZS_REPLACE<<R300_RB3D_ZS1_BACK_ZPASS_OP_SHIFT) |
+ (R300_ZS_REPLACE<<R300_RB3D_ZS1_BACK_ZFAIL_OP_SHIFT) ;
+ r300->hw.zs.cmd[R300_ZS_CNTL_2] = r300->state.stencil.clear;
}
/* Make sure we have enough space */
@@ -314,6 +336,11 @@ static void r300Clear(GLcontext * ctx, GLbitfield mask, GLboolean all,
bits |= CLEARBUFFER_DEPTH;
mask &= ~DD_DEPTH_BIT;
}
+
+ if ( (mask & DD_STENCIL_BIT) && r300->state.stencil.hw_stencil) {
+ bits |= CLEARBUFFER_STENCIL;
+ mask &= ~DD_STENCIL_BIT;
+ }
if (mask) {
if (RADEON_DEBUG & DEBUG_FALLBACKS)
diff --git a/src/mesa/drivers/dri/r300/r300_reg.h b/src/mesa/drivers/dri/r300/r300_reg.h
index f98e9b3bff1..a9cb88cf97a 100644
--- a/src/mesa/drivers/dri/r300/r300_reg.h
+++ b/src/mesa/drivers/dri/r300/r300_reg.h
@@ -1109,7 +1109,7 @@ I am fairly certain that they are correct unless stated otherwise in comments.
# define R300_RB3D_Z_TEST 0x00000012
# define R300_RB3D_Z_TEST_AND_WRITE 0x00000016
# define R300_RB3D_Z_WRITE_ONLY 0x00000006
-# define R300_RB3D_STENCIL_ENABLE (0<<1) /* UNKNOWN yet.. */
+# define R300_RB3D_STENCIL_ENABLE 0x00000001
#define R300_RB3D_ZSTENCIL_CNTL_1 0x4F04
/* functions */
@@ -1148,6 +1148,7 @@ I am fairly certain that they are correct unless stated otherwise in comments.
#define R300_RB3D_ZSTENCIL_CNTL_2 0x4F08
# define R300_RB3D_ZS2_STENCIL_REF_SHIFT 0
+# define R300_RB3D_ZS2_STENCIL_MASK 0xFF
# define R300_RB3D_ZS2_STENCIL_MASK_SHIFT 8
# define R300_RB3D_ZS2_STENCIL_WRITE_MASK_SHIFT 16
diff --git a/src/mesa/drivers/dri/r300/r300_state.c b/src/mesa/drivers/dri/r300/r300_state.c
index 874bd856dd9..c3c01203437 100644
--- a/src/mesa/drivers/dri/r300/r300_state.c
+++ b/src/mesa/drivers/dri/r300/r300_state.c
@@ -483,17 +483,15 @@ static void r300Enable(GLcontext* ctx, GLenum cap, GLboolean state)
else
newval = R300_RB3D_Z_TEST;
} else
- newval = 0;
+ newval = R300_RB3D_Z_DISABLED_1;
- r300->hw.zs.cmd[R300_ZS_CNTL_0] = newval;
+ r300->hw.zs.cmd[R300_ZS_CNTL_0] &= R300_RB3D_STENCIL_ENABLE;
+ r300->hw.zs.cmd[R300_ZS_CNTL_0] |= newval;
break;
case GL_STENCIL_TEST:
-
- WARN_ONCE("Do not know how to enable stencil. Help me !\n");
-
- if (r300->state.hw_stencil) {
- //fprintf(stderr, "Stencil %s\n", state ? "enabled" : "disabled");
+ WARN_ONCE("TODO - double side stencil !\n");
+ if (r300->state.stencil.hw_stencil) {
R300_STATECHANGE(r300, zs);
if (state) {
r300->hw.zs.cmd[R300_ZS_CNTL_0] |=
@@ -609,7 +607,6 @@ static void r300DepthFunc(GLcontext* ctx, GLenum func)
r300->hw.zs.cmd[R300_ZS_CNTL_1] |= R300_ZS_ALWAYS << R300_RB3D_ZS1_DEPTH_FUNC_SHIFT;
break;
}
-
}
@@ -626,8 +623,9 @@ static void r300DepthMask(GLcontext* ctx, GLboolean mask)
return;
R300_STATECHANGE(r300, zs);
- r300->hw.zs.cmd[R300_ZS_CNTL_0] = mask
- ? R300_RB3D_Z_TEST_AND_WRITE : R300_RB3D_Z_TEST;
+ r300->hw.zs.cmd[R300_ZS_CNTL_0] &= R300_RB3D_STENCIL_ENABLE;
+ r300->hw.zs.cmd[R300_ZS_CNTL_0] |= mask
+ ? R300_RB3D_Z_TEST_AND_WRITE : R300_RB3D_Z_TEST;
}
@@ -866,8 +864,8 @@ static void r300StencilFunc(GLcontext * ctx, GLenum func,
{
r300ContextPtr rmesa = R300_CONTEXT(ctx);
GLuint refmask = ((ctx->Stencil.Ref[0] << R300_RB3D_ZS2_STENCIL_REF_SHIFT) |
- (ctx->Stencil.
- ValueMask[0] << R300_RB3D_ZS2_STENCIL_MASK_SHIFT));
+ (ctx->Stencil.ValueMask[0] << R300_RB3D_ZS2_STENCIL_MASK_SHIFT));
+
GLuint flag;
R300_STATECHANGE(rmesa, zs);
@@ -875,9 +873,10 @@ static void r300StencilFunc(GLcontext * ctx, GLenum func,
rmesa->hw.zs.cmd[R300_ZS_CNTL_1] &= ~(
(R300_ZS_MASK << R300_RB3D_ZS1_FRONT_FUNC_SHIFT)
| (R300_ZS_MASK << R300_RB3D_ZS1_BACK_FUNC_SHIFT));
- rmesa->hw.zs.cmd[R300_ZS_CNTL_2] &= ~((R300_ZS_MASK << R300_RB3D_ZS2_STENCIL_REF_SHIFT) |
- (R300_ZS_MASK << R300_RB3D_ZS2_STENCIL_MASK_SHIFT));
-
+
+ rmesa->hw.zs.cmd[R300_ZS_CNTL_2] &= ~((R300_RB3D_ZS2_STENCIL_MASK << R300_RB3D_ZS2_STENCIL_REF_SHIFT) |
+ (R300_RB3D_ZS2_STENCIL_MASK << R300_RB3D_ZS2_STENCIL_MASK_SHIFT));
+
flag = translate_stencil_func(ctx->Stencil.Function[0]);
rmesa->hw.zs.cmd[R300_ZS_CNTL_1] |= (flag << R300_RB3D_ZS1_FRONT_FUNC_SHIFT)
@@ -890,7 +889,7 @@ static void r300StencilMask(GLcontext * ctx, GLuint mask)
r300ContextPtr rmesa = R300_CONTEXT(ctx);
R300_STATECHANGE(rmesa, zs);
- rmesa->hw.zs.cmd[R300_ZS_CNTL_2] &= ~(R300_ZS_MASK << R300_RB3D_ZS2_STENCIL_WRITE_MASK_SHIFT);
+ rmesa->hw.zs.cmd[R300_ZS_CNTL_2] &= ~(R300_RB3D_ZS2_STENCIL_MASK << R300_RB3D_ZS2_STENCIL_WRITE_MASK_SHIFT);
rmesa->hw.zs.cmd[R300_ZS_CNTL_2] |= ctx->Stencil.WriteMask[0] << R300_RB3D_ZS2_STENCIL_WRITE_MASK_SHIFT;
}
@@ -902,7 +901,10 @@ static void r300StencilOp(GLcontext * ctx, GLenum fail,
R300_STATECHANGE(rmesa, zs);
/* It is easier to mask what's left.. */
- rmesa->hw.zs.cmd[R300_ZS_CNTL_1] &= (R300_ZS_MASK << R300_RB3D_ZS1_DEPTH_FUNC_SHIFT);
+ rmesa->hw.zs.cmd[R300_ZS_CNTL_1] &=
+ (R300_ZS_MASK << R300_RB3D_ZS1_DEPTH_FUNC_SHIFT) |
+ (R300_ZS_MASK << R300_RB3D_ZS1_FRONT_FUNC_SHIFT) |
+ (R300_ZS_MASK << R300_RB3D_ZS1_BACK_FUNC_SHIFT);
rmesa->hw.zs.cmd[R300_ZS_CNTL_1] |=
(translate_stencil_op(ctx->Stencil.FailFunc[0]) << R300_RB3D_ZS1_FRONT_FAIL_OP_SHIFT)
@@ -911,19 +913,16 @@ static void r300StencilOp(GLcontext * ctx, GLenum fail,
|(translate_stencil_op(ctx->Stencil.FailFunc[0]) << R300_RB3D_ZS1_BACK_FAIL_OP_SHIFT)
|(translate_stencil_op(ctx->Stencil.ZFailFunc[0]) << R300_RB3D_ZS1_BACK_ZFAIL_OP_SHIFT)
|(translate_stencil_op(ctx->Stencil.ZPassFunc[0]) << R300_RB3D_ZS1_BACK_ZPASS_OP_SHIFT);
-
}
static void r300ClearStencil(GLcontext * ctx, GLint s)
{
r300ContextPtr rmesa = R300_CONTEXT(ctx);
- /* Not sure whether this is correct.. */
- R300_STATECHANGE(rmesa, zs);
- rmesa->hw.zs.cmd[R300_ZS_CNTL_2] =
+ rmesa->state.stencil.clear =
((GLuint) ctx->Stencil.Clear |
- (0xff << R200_STENCIL_MASK_SHIFT) |
- (ctx->Stencil.WriteMask[0] << R200_STENCIL_WRITEMASK_SHIFT));
+ (R300_RB3D_ZS2_STENCIL_MASK << R300_RB3D_ZS2_STENCIL_MASK_SHIFT) |
+ (ctx->Stencil.WriteMask[0] << R300_RB3D_ZS2_STENCIL_WRITE_MASK_SHIFT));
}
/* =============================================================
@@ -1978,9 +1977,18 @@ void r300ResetHwState(r300ContextPtr r300)
have bitfields accessed by different functions
and not all bits are used */
#if 0
+ /* initialize similiar to r200 */
r300->hw.zs.cmd[R300_ZS_CNTL_0] = 0;
- r300->hw.zs.cmd[R300_ZS_CNTL_1] = 0;
- r300->hw.zs.cmd[R300_ZS_CNTL_2] = 0xffff00;
+ r300->hw.zs.cmd[R300_ZS_CNTL_1] =
+ (R300_ZS_ALWAYS << R300_RB3D_ZS1_FRONT_FUNC_SHIFT) |
+ (R300_ZS_KEEP << R300_RB3D_ZS1_FRONT_FAIL_OP_SHIFT) |
+ (R300_ZS_KEEP << R300_RB3D_ZS1_FRONT_ZPASS_OP_SHIFT) |
+ (R300_ZS_KEEP << R300_RB3D_ZS1_FRONT_ZFAIL_OP_SHIFT) |
+ (R300_ZS_ALWAYS << R300_RB3D_ZS1_BACK_FUNC_SHIFT) |
+ (R300_ZS_KEEP << R300_RB3D_ZS1_BACK_FAIL_OP_SHIFT) |
+ (R300_ZS_KEEP << R300_RB3D_ZS1_BACK_ZPASS_OP_SHIFT) |
+ (R300_ZS_KEEP << R300_RB3D_ZS1_BACK_ZFAIL_OP_SHIFT);
+ r300->hw.zs.cmd[R300_ZS_CNTL_2] = 0x00ffff00;
#endif
/* go and compute register values from GL state */
@@ -1996,6 +2004,12 @@ void r300ResetHwState(r300ContextPtr r300)
r300Enable(ctx, GL_DEPTH_TEST, ctx->Depth.Test);
r300DepthMask(ctx, ctx->Depth.Mask);
r300DepthFunc(ctx, ctx->Depth.Func);
+
+ /* stencil */
+ r300Enable(ctx, GL_STENCIL_TEST, ctx->Stencil.Enabled);
+ r300StencilMask(ctx, ctx->Stencil.WriteMask[0]);
+ r300StencilFunc(ctx, ctx->Stencil.Function[0], ctx->Stencil.Ref[0], ctx->Stencil.ValueMask[0]);
+ r300StencilOp(ctx, ctx->Stencil.FailFunc[0], ctx->Stencil.ZFailFunc[0], ctx->Stencil.ZPassFunc[0]);
r300UpdateCulling(ctx);
@@ -2293,12 +2307,12 @@ void r300InitState(r300ContextPtr r300)
case 16:
r300->state.depth.scale = 1.0 / (GLfloat) 0xffff;
depth_fmt = R200_DEPTH_FORMAT_16BIT_INT_Z;
- //r300->state.stencil.clear = 0x00000000;
+ r300->state.stencil.clear = 0x00000000;
break;
case 24:
r300->state.depth.scale = 1.0 / (GLfloat) 0xffffff;
depth_fmt = R200_DEPTH_FORMAT_24BIT_INT_Z;
- //r300->state.stencil.clear = 0xff000000;
+ r300->state.stencil.clear = 0x00ff0000;
break;
default:
fprintf(stderr, "Error: Unsupported depth %d... exiting\n",
@@ -2307,7 +2321,7 @@ void r300InitState(r300ContextPtr r300)
}
/* Only have hw stencil when depth buffer is 24 bits deep */
- r300->state.hw_stencil = (ctx->Visual.stencilBits > 0 &&
+ r300->state.stencil.hw_stencil = (ctx->Visual.stencilBits > 0 &&
ctx->Visual.depthBits == 24);
memset(&(r300->state.texture), 0, sizeof(r300->state.texture));
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-28 17:48:13 +0000