diff options
| author | Peter Zubaj <[email protected]> | 2005-04-18 19:06:14 +0000 |
|---|---|---|
| committer | Peter Zubaj <[email protected]> | 2005-04-18 19:06:14 +0000 |
| commit | b7142567bc6badc952c1dac9b1b095c4517b2492 (patch) | |
| tree | 1a2a78167ff2397c937d047e17ceb091724ebe3e | |
| parent | 61f08d8094cebffd18e47eb684bb6bcd54d17189 (diff) | |
Alpha test fix
| -rw-r--r-- | src/mesa/drivers/dri/r300/r300_state.c | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/src/mesa/drivers/dri/r300/r300_state.c b/src/mesa/drivers/dri/r300/r300_state.c index 7cdc1733bd8..7cc0990444c 100644 --- a/src/mesa/drivers/dri/r300/r300_state.c +++ b/src/mesa/drivers/dri/r300/r300_state.c @@ -435,6 +435,28 @@ static void r300UpdateCulling(GLcontext* ctx) r300->hw.cul.cmd[R300_CUL_CULL] = val; } +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 + */ + r300ContextPtr r300 = R300_CONTEXT(ctx); + + R300_STATECHANGE(r300, unk4F10); + if (ctx->Color.AlphaEnabled) + /* disable early Z */ + r300->hw.unk4F10.cmd[2] = 0x00000000; + else { + if (ctx->Depth.Test) + /* enable early Z */ + r300->hw.unk4F10.cmd[2] = 0x00000001; + else + /* disable early Z */ + r300->hw.unk4F10.cmd[2] = 0x00000000; + } +} /** * Handle glEnable()/glDisable(). @@ -468,6 +490,7 @@ static void r300Enable(GLcontext* ctx, GLenum cap, GLboolean state) r300->hw.at.cmd[R300_AT_ALPHA_TEST] &= ~R300_ALPHA_TEST_ENABLE; } + update_early_z(ctx); break; case GL_BLEND: @@ -488,6 +511,7 @@ static void r300Enable(GLcontext* ctx, GLenum cap, GLboolean state) r300->hw.zs.cmd[R300_ZS_CNTL_0] &= R300_RB3D_STENCIL_ENABLE; r300->hw.zs.cmd[R300_ZS_CNTL_0] |= newval; + update_early_z(ctx); break; case GL_STENCIL_TEST: @@ -2314,12 +2338,12 @@ void r300ResetHwState(r300ContextPtr r300) r300->hw.unk4EA0.cmd[2] = 0xffffffff; r300->hw.unk4F10.cmd[1] = 0x00000002; // depthbuffer format? - r300->hw.unk4F10.cmd[2] = 0x00000000; + //r300->hw.unk4F10.cmd[2] = 0x00000000; r300->hw.unk4F10.cmd[3] = 0x00000003; r300->hw.unk4F10.cmd[4] = 0x00000000; /* experiment a bit */ - r300->hw.unk4F10.cmd[2] = 0x00000001; // depthbuffer format? + //r300->hw.unk4F10.cmd[2] = 0x00000001; // depthbuffer format? r300->hw.zb.cmd[R300_ZB_OFFSET] = r300->radeon.radeonScreen->depthOffset + |