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authorChristoph Bill <egore@gmx.de>2007-03-01 20:40:25 +0100
committerJerome Glisse <glisse@freedesktop.org>2007-03-01 20:40:25 +0100
commitad3f2107ed698e794871e0a2bd996260b263b46a (patch)
tree8d98b4fb7d6ad246a862612b7db76ef5f2d76da8 /src/mesa/drivers/dri/r300
parent5cb01764f647be7ca3cb5e891af9fe012914a93d (diff)
Add early register descritpion.
This need more work on case where we can disable or enable early (stencil, alpha might need it to be disable).
Diffstat (limited to 'src/mesa/drivers/dri/r300')
-rw-r--r--src/mesa/drivers/dri/r300/r300_reg.h4
-rw-r--r--src/mesa/drivers/dri/r300/r300_state.c14
2 files changed, 11 insertions, 7 deletions
diff --git a/src/mesa/drivers/dri/r300/r300_reg.h b/src/mesa/drivers/dri/r300/r300_reg.h
index 9f636ec1d2..6abcfa4569 100644
--- a/src/mesa/drivers/dri/r300/r300_reg.h
+++ b/src/mesa/drivers/dri/r300/r300_reg.h
@@ -1378,6 +1378,10 @@ USE OR OTHER DEALINGS IN THE SOFTWARE.
/* 16 bit format or some aditional bit ? */
# define R300_DEPTH_FORMAT_UNK32 (32 << 0)
+#define R300_RB3D_EARLY_Z 0x4F14
+# define R300_EARLY_Z_DISABLE (0 << 0)
+# define R300_EARLY_Z_ENABLE (1 << 0)
+
/* gap */
#define R300_RB3D_DEPTHOFFSET 0x4F20
diff --git a/src/mesa/drivers/dri/r300/r300_state.c b/src/mesa/drivers/dri/r300/r300_state.c
index b30ece160a..0e33e51ef3 100644
--- a/src/mesa/drivers/dri/r300/r300_state.c
+++ b/src/mesa/drivers/dri/r300/r300_state.c
@@ -328,24 +328,24 @@ static void r300UpdateCulling(GLcontext* ctx)
static void update_early_z(GLcontext *ctx)
{
- /* updates register 0x4f14
- if depth test is not enabled it should be 0x00000000
- if depth is enabled and alpha not it should be 0x00000001
- if depth and alpha is enabled it should be 0x00000000
+ /* updates register R300_RB3D_EARLY_Z (0x4F14)
+ if depth test is not enabled it should be R300_EARLY_Z_DISABLE
+ if depth is enabled and alpha not it should be R300_EARLY_Z_ENABLE
+ if depth and alpha is enabled it should be R300_EARLY_Z_DISABLE
*/
r300ContextPtr r300 = R300_CONTEXT(ctx);
R300_STATECHANGE(r300, unk4F10);
if (ctx->Color.AlphaEnabled && ctx->Color.AlphaFunc != GL_ALWAYS)
/* disable early Z */
- r300->hw.unk4F10.cmd[2] = 0x00000000;
+ r300->hw.unk4F10.cmd[2] = R300_EARLY_Z_DISABLE;
else {
if (ctx->Depth.Test && ctx->Depth.Func != GL_NEVER)
/* enable early Z */
- r300->hw.unk4F10.cmd[2] = 0x00000001;
+ r300->hw.unk4F10.cmd[2] = R300_EARLY_Z_ENABLE;
else
/* disable early Z */
- r300->hw.unk4F10.cmd[2] = 0x00000000;
+ r300->hw.unk4F10.cmd[2] = R300_EARLY_Z_DISABLE;
}
}