diff options
Diffstat (limited to 'src/mesa/drivers')
-rw-r--r-- | src/mesa/drivers/dri/r300/r300_state.c | 243 |
1 files changed, 117 insertions, 126 deletions
diff --git a/src/mesa/drivers/dri/r300/r300_state.c b/src/mesa/drivers/dri/r300/r300_state.c index 401b4a1618..05c5f70c70 100644 --- a/src/mesa/drivers/dri/r300/r300_state.c +++ b/src/mesa/drivers/dri/r300/r300_state.c @@ -64,50 +64,6 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. #include "drirenderbuffer.h" -static void r300AlphaFunc(GLcontext * ctx, GLenum func, GLfloat ref) -{ - r300ContextPtr rmesa = R300_CONTEXT(ctx); - int pp_misc = rmesa->hw.at.cmd[R300_AT_ALPHA_TEST]; - GLubyte refByte; - - CLAMPED_FLOAT_TO_UBYTE(refByte, ref); - - R300_STATECHANGE(rmesa, at); - - pp_misc &= ~(R300_ALPHA_TEST_OP_MASK | R300_REF_ALPHA_MASK); - pp_misc |= (refByte & R300_REF_ALPHA_MASK); - - switch (func) { - case GL_NEVER: - pp_misc |= R300_ALPHA_TEST_FAIL; - break; - case GL_LESS: - pp_misc |= R300_ALPHA_TEST_LESS; - break; - case GL_EQUAL: - pp_misc |= R300_ALPHA_TEST_EQUAL; - break; - case GL_LEQUAL: - pp_misc |= R300_ALPHA_TEST_LEQUAL; - break; - case GL_GREATER: - pp_misc |= R300_ALPHA_TEST_GREATER; - break; - case GL_NOTEQUAL: - pp_misc |= R300_ALPHA_TEST_NEQUAL; - break; - case GL_GEQUAL: - pp_misc |= R300_ALPHA_TEST_GEQUAL; - break; - case GL_ALWAYS: - pp_misc |= R300_ALPHA_TEST_PASS; - //pp_misc &= ~R300_ALPHA_TEST_ENABLE; - break; - } - - rmesa->hw.at.cmd[R300_AT_ALPHA_TEST] = pp_misc; -} - static void r300BlendColor(GLcontext * ctx, const GLfloat cf[4]) { GLubyte color[4]; @@ -371,7 +327,7 @@ static void r300UpdateCulling(GLcontext* ctx) r300->hw.cul.cmd[R300_CUL_CULL] = val; } -static void update_early_z(GLcontext* ctx) +static void update_early_z(GLcontext *ctx) { /* updates register 0x4f14 if depth test is not enabled it should be 0x00000000 @@ -381,11 +337,11 @@ static void update_early_z(GLcontext* ctx) r300ContextPtr r300 = R300_CONTEXT(ctx); R300_STATECHANGE(r300, unk4F10); - if (ctx->Color.AlphaEnabled) + if (ctx->Color.AlphaEnabled && ctx->Color.AlphaFunc != GL_ALWAYS) /* disable early Z */ r300->hw.unk4F10.cmd[2] = 0x00000000; else { - if (ctx->Depth.Test) + if (ctx->Depth.Test && ctx->Depth.Func != GL_ALWAYS) /* enable early Z */ r300->hw.unk4F10.cmd[2] = 0x00000001; else @@ -394,6 +350,113 @@ static void update_early_z(GLcontext* ctx) } } +static void update_alpha(GLcontext *ctx) +{ + r300ContextPtr r300 = R300_CONTEXT(ctx); + GLubyte refByte; + uint32_t pp_misc = 0x0; + GLboolean really_enabled = ctx->Color.AlphaEnabled; + + CLAMPED_FLOAT_TO_UBYTE(refByte, ctx->Color.AlphaRef); + + switch (ctx->Color.AlphaFunc) { + case GL_NEVER: + pp_misc |= R300_ALPHA_TEST_FAIL; + break; + case GL_LESS: + pp_misc |= R300_ALPHA_TEST_LESS; + break; + case GL_EQUAL: + pp_misc |= R300_ALPHA_TEST_EQUAL; + break; + case GL_LEQUAL: + pp_misc |= R300_ALPHA_TEST_LEQUAL; + break; + case GL_GREATER: + pp_misc |= R300_ALPHA_TEST_GREATER; + break; + case GL_NOTEQUAL: + pp_misc |= R300_ALPHA_TEST_NEQUAL; + break; + case GL_GEQUAL: + pp_misc |= R300_ALPHA_TEST_GEQUAL; + break; + case GL_ALWAYS: + /*pp_misc |= R300_ALPHA_TEST_PASS;*/ + really_enabled = GL_FALSE; + break; + } + + if (really_enabled) { + pp_misc |= R300_ALPHA_TEST_ENABLE; + pp_misc |= (refByte & R300_REF_ALPHA_MASK); + } else { + pp_misc = 0x0; + } + + + R300_STATECHANGE(r300, at); + r300->hw.at.cmd[R300_AT_ALPHA_TEST] = pp_misc; + update_early_z(ctx); +} + +static void r300AlphaFunc(GLcontext * ctx, GLenum func, GLfloat ref) +{ + (void) func; + (void) ref; + update_alpha(ctx); +} + +static int translate_func(int func) +{ + switch (func) { + case GL_NEVER: + return R300_ZS_NEVER; + case GL_LESS: + return R300_ZS_LESS; + case GL_EQUAL: + return R300_ZS_EQUAL; + case GL_LEQUAL: + return R300_ZS_LEQUAL; + case GL_GREATER: + return R300_ZS_GREATER; + case GL_NOTEQUAL: + return R300_ZS_NOTEQUAL; + case GL_GEQUAL: + return R300_ZS_GEQUAL; + case GL_ALWAYS: + return R300_ZS_ALWAYS; + } + return 0; +} + +static void update_depth(GLcontext* ctx) +{ + r300ContextPtr r300 = R300_CONTEXT(ctx); + + R300_STATECHANGE(r300, zs); + 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_DEPTH_FUNC_SHIFT); + + if (ctx->Depth.Test && ctx->Depth.Func != GL_ALWAYS) { + if (ctx->Depth.Mask) + r300->hw.zs.cmd[R300_ZS_CNTL_0] |= R300_RB3D_Z_TEST_AND_WRITE; + else + r300->hw.zs.cmd[R300_ZS_CNTL_0] |= R300_RB3D_Z_TEST; + + r300->hw.zs.cmd[R300_ZS_CNTL_1] |= translate_func(ctx->Depth.Func) << R300_RB3D_ZS1_DEPTH_FUNC_SHIFT; + } else { + if (ctx->Depth.Mask) { + r300->hw.zs.cmd[R300_ZS_CNTL_0] |= R300_RB3D_Z_WRITE_ONLY; + r300->hw.zs.cmd[R300_ZS_CNTL_1] |= translate_func(GL_ALWAYS) << R300_RB3D_ZS1_DEPTH_FUNC_SHIFT; + } else { + r300->hw.zs.cmd[R300_ZS_CNTL_0] |= R300_RB3D_Z_DISABLED_1; + } + } + + update_early_z(ctx); +} + /** * Handle glEnable()/glDisable(). * @@ -436,15 +499,7 @@ static void r300Enable(GLcontext* ctx, GLenum cap, GLboolean state) break; case GL_ALPHA_TEST: - R300_STATECHANGE(r300, at); - if (state) { - r300->hw.at.cmd[R300_AT_ALPHA_TEST] |= - R300_ALPHA_TEST_ENABLE; - } else { - r300->hw.at.cmd[R300_AT_ALPHA_TEST] &= - ~R300_ALPHA_TEST_ENABLE; - } - update_early_z(ctx); + update_alpha(ctx); break; case GL_BLEND: @@ -453,19 +508,7 @@ static void r300Enable(GLcontext* ctx, GLenum cap, GLboolean state) break; case GL_DEPTH_TEST: - R300_STATECHANGE(r300, zs); - - if (state) { - if (ctx->Depth.Mask) - newval = R300_RB3D_Z_TEST_AND_WRITE; - else - newval = R300_RB3D_Z_TEST; - } else - newval = R300_RB3D_Z_DISABLED_1; - - 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); + update_depth(ctx); break; case GL_STENCIL_TEST: @@ -593,38 +636,8 @@ static void r300FrontFace(GLcontext* ctx, GLenum mode) */ static void r300DepthFunc(GLcontext* ctx, GLenum func) { - r300ContextPtr r300 = R300_CONTEXT(ctx); - - R300_STATECHANGE(r300, zs); - - r300->hw.zs.cmd[R300_ZS_CNTL_1] &= ~(R300_ZS_MASK << R300_RB3D_ZS1_DEPTH_FUNC_SHIFT); - - switch(func) { - case GL_NEVER: - r300->hw.zs.cmd[R300_ZS_CNTL_1] |= R300_ZS_NEVER << R300_RB3D_ZS1_DEPTH_FUNC_SHIFT; - break; - case GL_LESS: - r300->hw.zs.cmd[R300_ZS_CNTL_1] |= R300_ZS_LESS << R300_RB3D_ZS1_DEPTH_FUNC_SHIFT; - break; - case GL_EQUAL: - r300->hw.zs.cmd[R300_ZS_CNTL_1] |= R300_ZS_EQUAL << R300_RB3D_ZS1_DEPTH_FUNC_SHIFT; - break; - case GL_LEQUAL: - r300->hw.zs.cmd[R300_ZS_CNTL_1] |= R300_ZS_LEQUAL << R300_RB3D_ZS1_DEPTH_FUNC_SHIFT; - break; - case GL_GREATER: - r300->hw.zs.cmd[R300_ZS_CNTL_1] |= R300_ZS_GREATER << R300_RB3D_ZS1_DEPTH_FUNC_SHIFT; - break; - case GL_NOTEQUAL: - r300->hw.zs.cmd[R300_ZS_CNTL_1] |= R300_ZS_NOTEQUAL << R300_RB3D_ZS1_DEPTH_FUNC_SHIFT; - break; - case GL_GEQUAL: - r300->hw.zs.cmd[R300_ZS_CNTL_1] |= R300_ZS_GEQUAL << R300_RB3D_ZS1_DEPTH_FUNC_SHIFT; - break; - case GL_ALWAYS: - r300->hw.zs.cmd[R300_ZS_CNTL_1] |= R300_ZS_ALWAYS << R300_RB3D_ZS1_DEPTH_FUNC_SHIFT; - break; - } + (void) func; + update_depth(ctx); } @@ -635,7 +648,8 @@ static void r300DepthFunc(GLcontext* ctx, GLenum func) */ static void r300DepthMask(GLcontext* ctx, GLboolean mask) { - r300Enable(ctx, GL_DEPTH_TEST, ctx->Depth.Test); + (void) mask; + update_depth(ctx); } @@ -793,29 +807,6 @@ static void r300PolygonMode(GLcontext *ctx, GLenum face, GLenum mode) * Stencil */ -static int translate_stencil_func(int func) -{ - switch (func) { - case GL_NEVER: - return R300_ZS_NEVER; - case GL_LESS: - return R300_ZS_LESS; - case GL_EQUAL: - return R300_ZS_EQUAL; - case GL_LEQUAL: - return R300_ZS_LEQUAL; - case GL_GREATER: - return R300_ZS_GREATER; - case GL_NOTEQUAL: - return R300_ZS_NOTEQUAL; - case GL_GEQUAL: - return R300_ZS_GEQUAL; - case GL_ALWAYS: - return R300_ZS_ALWAYS; - } - return 0; -} - static int translate_stencil_op(int op) { switch (op) { @@ -877,7 +868,7 @@ static void r300StencilFuncSeparate(GLcontext * ctx, GLenum face, 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]); + flag = translate_func(ctx->Stencil.Function[0]); rmesa->hw.zs.cmd[R300_ZS_CNTL_1] |= (flag << R300_RB3D_ZS1_FRONT_FUNC_SHIFT) | (flag << R300_RB3D_ZS1_BACK_FUNC_SHIFT); |