diff options
Diffstat (limited to 'i915/i830_texblend.c')
| -rw-r--r-- | i915/i830_texblend.c | 364 |
1 files changed, 181 insertions, 183 deletions
diff --git a/i915/i830_texblend.c b/i915/i830_texblend.c index 49e0347..58f220e 100644 --- a/i915/i830_texblend.c +++ b/i915/i830_texblend.c @@ -46,46 +46,42 @@ /* ================================================================ * Texture combine functions */ -static GLuint pass_through( GLuint *state, GLuint blendUnit ) +static GLuint +pass_through(GLuint * state, GLuint blendUnit) { state[0] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) | - TEXPIPE_COLOR | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - DISABLE_TEX_CNTRL_STAGE | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ARG1); + TEXPIPE_COLOR | + ENABLE_TEXOUTPUT_WRT_SEL | + TEXOP_OUTPUT_CURRENT | + DISABLE_TEX_CNTRL_STAGE | + TEXOP_SCALE_1X | TEXOP_MODIFY_PARMS | TEXBLENDOP_ARG1); state[1] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) | - TEXPIPE_ALPHA | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - TEXOP_SCALE_1X | - TEXOP_MODIFY_PARMS | - TEXBLENDOP_ARG1); + TEXPIPE_ALPHA | + ENABLE_TEXOUTPUT_WRT_SEL | + TEXOP_OUTPUT_CURRENT | + TEXOP_SCALE_1X | TEXOP_MODIFY_PARMS | TEXBLENDOP_ARG1); state[2] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) | - TEXPIPE_COLOR | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); + TEXPIPE_COLOR | + TEXBLEND_ARG1 | + TEXBLENDARG_MODIFY_PARMS | TEXBLENDARG_CURRENT); state[3] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) | - TEXPIPE_ALPHA | - TEXBLEND_ARG1 | - TEXBLENDARG_MODIFY_PARMS | - TEXBLENDARG_CURRENT); + TEXPIPE_ALPHA | + TEXBLEND_ARG1 | + TEXBLENDARG_MODIFY_PARMS | TEXBLENDARG_CURRENT); return 4; } -static GLuint emit_factor( GLuint blendUnit, GLuint *state, GLuint count, - const GLfloat *factor ) +static GLuint +emit_factor(GLuint blendUnit, GLuint * state, GLuint count, + const GLfloat * factor) { GLubyte r, g, b, a; GLuint col; - + if (0) fprintf(stderr, "emit constant %d: %.2f %.2f %.2f %.2f\n", - blendUnit, factor[0], factor[1], factor[2], factor[3]); + blendUnit, factor[0], factor[1], factor[2], factor[3]); UNCLAMPED_FLOAT_TO_UBYTE(r, factor[0]); UNCLAMPED_FLOAT_TO_UBYTE(g, factor[1]); @@ -94,21 +90,27 @@ static GLuint emit_factor( GLuint blendUnit, GLuint *state, GLuint count, col = ((a << 24) | (r << 16) | (g << 8) | b); - state[count++] = _3DSTATE_COLOR_FACTOR_N_CMD(blendUnit); + state[count++] = _3DSTATE_COLOR_FACTOR_N_CMD(blendUnit); state[count++] = col; return count; } -static __inline__ GLuint GetTexelOp(GLint unit) +static INLINE GLuint +GetTexelOp(GLint unit) { - switch(unit) { - case 0: return TEXBLENDARG_TEXEL0; - case 1: return TEXBLENDARG_TEXEL1; - case 2: return TEXBLENDARG_TEXEL2; - case 3: return TEXBLENDARG_TEXEL3; - default: return TEXBLENDARG_TEXEL0; + switch (unit) { + case 0: + return TEXBLENDARG_TEXEL0; + case 1: + return TEXBLENDARG_TEXEL1; + case 2: + return TEXBLENDARG_TEXEL2; + case 3: + return TEXBLENDARG_TEXEL3; + default: + return TEXBLENDARG_TEXEL0; } } @@ -132,12 +134,10 @@ static __inline__ GLuint GetTexelOp(GLint unit) * partial support for the extension? */ GLuint -i830SetTexEnvCombine(i830ContextPtr i830, - const struct gl_tex_env_combine_state * combine, - GLint blendUnit, - GLuint texel_op, - GLuint *state, - const GLfloat *factor ) +i830SetTexEnvCombine(struct i830_context * i830, + const struct gl_tex_env_combine_state * combine, + GLint blendUnit, + GLuint texel_op, GLuint * state, const GLfloat * factor) { const GLuint numColorArgs = combine->_NumArgsRGB; const GLuint numAlphaArgs = combine->_NumArgsA; @@ -162,7 +162,7 @@ i830SetTexEnvCombine(i830ContextPtr i830, TEXPIPE_ALPHA | TEXBLEND_ARG0 | TEXBLENDARG_MODIFY_PARMS, }; - if(INTEL_DEBUG&DEBUG_TEXTURE) + if (INTEL_DEBUG & DEBUG_TEXTURE) fprintf(stderr, "%s\n", __FUNCTION__); @@ -188,23 +188,23 @@ i830SetTexEnvCombine(i830ContextPtr i830, } - switch(combine->ModeRGB) { - case GL_REPLACE: + switch (combine->ModeRGB) { + case GL_REPLACE: blendop = TEXBLENDOP_ARG1; break; - case GL_MODULATE: + case GL_MODULATE: blendop = TEXBLENDOP_MODULATE; break; - case GL_ADD: + case GL_ADD: blendop = TEXBLENDOP_ADD; break; case GL_ADD_SIGNED: - blendop = TEXBLENDOP_ADDSIGNED; + blendop = TEXBLENDOP_ADDSIGNED; break; case GL_INTERPOLATE: - blendop = TEXBLENDOP_BLEND; + blendop = TEXBLENDOP_BLEND; break; - case GL_SUBTRACT: + case GL_SUBTRACT: blendop = TEXBLENDOP_SUBTRACT; break; case GL_DOT3_RGB_EXT: @@ -215,55 +215,54 @@ i830SetTexEnvCombine(i830ContextPtr i830, case GL_DOT3_RGBA: blendop = TEXBLENDOP_DOT3; break; - default: - return pass_through( state, blendUnit ); + default: + return pass_through(state, blendUnit); } blendop |= (rgb_shift << TEXOP_SCALE_SHIFT); /* Handle RGB args */ - for(i = 0; i < 3; i++) { - switch(combine->SourceRGB[i]) { - case GL_TEXTURE: - args_RGB[i] = texel_op; - break; + for (i = 0; i < 3; i++) { + switch (combine->SourceRGB[i]) { + case GL_TEXTURE: + args_RGB[i] = texel_op; + break; case GL_TEXTURE0: case GL_TEXTURE1: case GL_TEXTURE2: case GL_TEXTURE3: - args_RGB[i] = GetTexelOp( combine->SourceRGB[i] - GL_TEXTURE0 ); - break; + args_RGB[i] = GetTexelOp(combine->SourceRGB[i] - GL_TEXTURE0); + break; case GL_CONSTANT: - args_RGB[i] = TEXBLENDARG_FACTOR_N; - need_factor = 1; - break; + args_RGB[i] = TEXBLENDARG_FACTOR_N; + need_factor = 1; + break; case GL_PRIMARY_COLOR: - args_RGB[i] = TEXBLENDARG_DIFFUSE; - break; + args_RGB[i] = TEXBLENDARG_DIFFUSE; + break; case GL_PREVIOUS: - args_RGB[i] = TEXBLENDARG_CURRENT; - break; - default: - return pass_through( state, blendUnit ); + args_RGB[i] = TEXBLENDARG_CURRENT; + break; + default: + return pass_through(state, blendUnit); } - switch(combine->OperandRGB[i]) { - case GL_SRC_COLOR: - args_RGB[i] |= 0; - break; - case GL_ONE_MINUS_SRC_COLOR: - args_RGB[i] |= TEXBLENDARG_INV_ARG; - break; - case GL_SRC_ALPHA: - args_RGB[i] |= TEXBLENDARG_REPLICATE_ALPHA; - break; - case GL_ONE_MINUS_SRC_ALPHA: - args_RGB[i] |= (TEXBLENDARG_REPLICATE_ALPHA | - TEXBLENDARG_INV_ARG); - break; - default: - return pass_through( state, blendUnit ); + switch (combine->OperandRGB[i]) { + case GL_SRC_COLOR: + args_RGB[i] |= 0; + break; + case GL_ONE_MINUS_SRC_COLOR: + args_RGB[i] |= TEXBLENDARG_INV_ARG; + break; + case GL_SRC_ALPHA: + args_RGB[i] |= TEXBLENDARG_REPLICATE_ALPHA; + break; + case GL_ONE_MINUS_SRC_ALPHA: + args_RGB[i] |= (TEXBLENDARG_REPLICATE_ALPHA | TEXBLENDARG_INV_ARG); + break; + default: + return pass_through(state, blendUnit); } } @@ -275,76 +274,76 @@ i830SetTexEnvCombine(i830ContextPtr i830, * Note - the global factor is set up with alpha == .5, so * the alpha part of the DOT4 calculation should be zero. */ - if ( combine->ModeRGB == GL_DOT3_RGBA_EXT || - combine->ModeRGB == GL_DOT3_RGBA ) { + if (combine->ModeRGB == GL_DOT3_RGBA_EXT || + combine->ModeRGB == GL_DOT3_RGBA) { ablendop = TEXBLENDOP_DOT4; - args_A[0] = TEXBLENDARG_FACTOR; /* the global factor */ + args_A[0] = TEXBLENDARG_FACTOR; /* the global factor */ args_A[1] = TEXBLENDARG_FACTOR; args_A[2] = TEXBLENDARG_FACTOR; } else { - switch(combine->ModeA) { - case GL_REPLACE: - ablendop = TEXBLENDOP_ARG1; - break; - case GL_MODULATE: - ablendop = TEXBLENDOP_MODULATE; - break; - case GL_ADD: - ablendop = TEXBLENDOP_ADD; - break; + switch (combine->ModeA) { + case GL_REPLACE: + ablendop = TEXBLENDOP_ARG1; + break; + case GL_MODULATE: + ablendop = TEXBLENDOP_MODULATE; + break; + case GL_ADD: + ablendop = TEXBLENDOP_ADD; + break; case GL_ADD_SIGNED: - ablendop = TEXBLENDOP_ADDSIGNED; - break; + ablendop = TEXBLENDOP_ADDSIGNED; + break; case GL_INTERPOLATE: - ablendop = TEXBLENDOP_BLEND; - break; - case GL_SUBTRACT: - ablendop = TEXBLENDOP_SUBTRACT; - break; + ablendop = TEXBLENDOP_BLEND; + break; + case GL_SUBTRACT: + ablendop = TEXBLENDOP_SUBTRACT; + break; default: - return pass_through( state, blendUnit ); + return pass_through(state, blendUnit); } ablendop |= (alpha_shift << TEXOP_SCALE_SHIFT); /* Handle A args */ - for(i = 0; i < 3; i++) { - switch(combine->SourceA[i]) { - case GL_TEXTURE: - args_A[i] = texel_op; - break; - case GL_TEXTURE0: - case GL_TEXTURE1: - case GL_TEXTURE2: - case GL_TEXTURE3: - args_A[i] = GetTexelOp( combine->SourceA[i] - GL_TEXTURE0 ); - break; - case GL_CONSTANT: - args_A[i] = TEXBLENDARG_FACTOR_N; - need_factor = 1; - break; - case GL_PRIMARY_COLOR: - args_A[i] = TEXBLENDARG_DIFFUSE; - break; - case GL_PREVIOUS: - args_A[i] = TEXBLENDARG_CURRENT; - break; - default: - return pass_through( state, blendUnit ); - } - - switch(combine->OperandA[i]) { - case GL_SRC_ALPHA: - args_A[i] |= 0; - break; - case GL_ONE_MINUS_SRC_ALPHA: - args_A[i] |= TEXBLENDARG_INV_ARG; - break; - default: - return pass_through( state, blendUnit ); - } + for (i = 0; i < 3; i++) { + switch (combine->SourceA[i]) { + case GL_TEXTURE: + args_A[i] = texel_op; + break; + case GL_TEXTURE0: + case GL_TEXTURE1: + case GL_TEXTURE2: + case GL_TEXTURE3: + args_A[i] = GetTexelOp(combine->SourceA[i] - GL_TEXTURE0); + break; + case GL_CONSTANT: + args_A[i] = TEXBLENDARG_FACTOR_N; + need_factor = 1; + break; + case GL_PRIMARY_COLOR: + args_A[i] = TEXBLENDARG_DIFFUSE; + break; + case GL_PREVIOUS: + args_A[i] = TEXBLENDARG_CURRENT; + break; + default: + return pass_through(state, blendUnit); + } + + switch (combine->OperandA[i]) { + case GL_SRC_ALPHA: + args_A[i] |= 0; + break; + case GL_ONE_MINUS_SRC_ALPHA: + args_A[i] |= TEXBLENDARG_INV_ARG; + break; + default: + return pass_through(state, blendUnit); + } } } @@ -363,86 +362,86 @@ i830SetTexEnvCombine(i830ContextPtr i830, used = 0; state[used++] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) | - TEXPIPE_COLOR | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - DISABLE_TEX_CNTRL_STAGE | - TEXOP_MODIFY_PARMS | - blendop); + TEXPIPE_COLOR | + ENABLE_TEXOUTPUT_WRT_SEL | + TEXOP_OUTPUT_CURRENT | + DISABLE_TEX_CNTRL_STAGE | TEXOP_MODIFY_PARMS | blendop); state[used++] = (_3DSTATE_MAP_BLEND_OP_CMD(blendUnit) | - TEXPIPE_ALPHA | - ENABLE_TEXOUTPUT_WRT_SEL | - TEXOP_OUTPUT_CURRENT | - TEXOP_MODIFY_PARMS | - ablendop); + TEXPIPE_ALPHA | + ENABLE_TEXOUTPUT_WRT_SEL | + TEXOP_OUTPUT_CURRENT | TEXOP_MODIFY_PARMS | ablendop); - for ( i = 0 ; i < numColorArgs ; i++ ) { + for (i = 0; i < numColorArgs; i++) { state[used++] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) | - tex_blend_rgb[i] | args_RGB[i]); + tex_blend_rgb[i] | args_RGB[i]); } - for ( i = 0 ; i < numAlphaArgs ; i++ ) { + for (i = 0; i < numAlphaArgs; i++) { state[used++] = (_3DSTATE_MAP_BLEND_ARG_CMD(blendUnit) | - tex_blend_a[i] | args_A[i]); + tex_blend_a[i] | args_A[i]); } - if (need_factor) - return emit_factor( blendUnit, state, used, factor ); - else + if (need_factor) + return emit_factor(blendUnit, state, used, factor); + else return used; } -static void emit_texblend( i830ContextPtr i830, GLuint unit, GLuint blendUnit, - GLboolean last_stage ) +static void +emit_texblend(struct i830_context *i830, GLuint unit, GLuint blendUnit, + GLboolean last_stage) { struct gl_texture_unit *texUnit = &i830->intel.ctx.Texture.Unit[unit]; GLuint tmp[I830_TEXBLEND_SIZE], tmp_sz; - if (0) fprintf(stderr, "%s unit %d\n", __FUNCTION__, unit); + if (0) + fprintf(stderr, "%s unit %d\n", __FUNCTION__, unit); /* Update i830->state.TexBlend - */ - tmp_sz = i830SetTexEnvCombine(i830, texUnit->_CurrentCombine, blendUnit, - GetTexelOp(unit), tmp, - texUnit->EnvColor ); + */ + tmp_sz = i830SetTexEnvCombine(i830, texUnit->_CurrentCombine, blendUnit, + GetTexelOp(unit), tmp, texUnit->EnvColor); - if (last_stage) + if (last_stage) tmp[0] |= TEXOP_LAST_STAGE; if (tmp_sz != i830->state.TexBlendWordsUsed[blendUnit] || - memcmp( tmp, i830->state.TexBlend[blendUnit], tmp_sz * sizeof(GLuint))) { - - I830_STATECHANGE( i830, I830_UPLOAD_TEXBLEND(blendUnit) ); - memcpy( i830->state.TexBlend[blendUnit], tmp, tmp_sz * sizeof(GLuint)); + memcmp(tmp, i830->state.TexBlend[blendUnit], + tmp_sz * sizeof(GLuint))) { + + I830_STATECHANGE(i830, I830_UPLOAD_TEXBLEND(blendUnit)); + memcpy(i830->state.TexBlend[blendUnit], tmp, tmp_sz * sizeof(GLuint)); i830->state.TexBlendWordsUsed[blendUnit] = tmp_sz; } I830_ACTIVESTATE(i830, I830_UPLOAD_TEXBLEND(blendUnit), GL_TRUE); } -static void emit_passthrough( i830ContextPtr i830 ) +static void +emit_passthrough(struct i830_context *i830) { GLuint tmp[I830_TEXBLEND_SIZE], tmp_sz; GLuint unit = 0; - tmp_sz = pass_through( tmp, unit ); + tmp_sz = pass_through(tmp, unit); tmp[0] |= TEXOP_LAST_STAGE; if (tmp_sz != i830->state.TexBlendWordsUsed[unit] || - memcmp( tmp, i830->state.TexBlend[unit], tmp_sz * sizeof(GLuint))) { - - I830_STATECHANGE( i830, I830_UPLOAD_TEXBLEND(unit) ); - memcpy( i830->state.TexBlend[unit], tmp, tmp_sz * sizeof(GLuint)); + memcmp(tmp, i830->state.TexBlend[unit], tmp_sz * sizeof(GLuint))) { + + I830_STATECHANGE(i830, I830_UPLOAD_TEXBLEND(unit)); + memcpy(i830->state.TexBlend[unit], tmp, tmp_sz * sizeof(GLuint)); i830->state.TexBlendWordsUsed[unit] = tmp_sz; } I830_ACTIVESTATE(i830, I830_UPLOAD_TEXBLEND(unit), GL_TRUE); } -void i830EmitTextureBlend( i830ContextPtr i830 ) +void +i830EmitTextureBlend(struct i830_context *i830) { GLcontext *ctx = &i830->intel.ctx; GLuint unit, last_stage = 0, blendunit = 0; @@ -450,16 +449,15 @@ void i830EmitTextureBlend( i830ContextPtr i830 ) I830_ACTIVESTATE(i830, I830_UPLOAD_TEXBLEND_ALL, GL_FALSE); if (ctx->Texture._EnabledUnits) { - for (unit = 0 ; unit < ctx->Const.MaxTextureUnits ; unit++) - if (ctx->Texture.Unit[unit]._ReallyEnabled) - last_stage = unit; + for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++) + if (ctx->Texture.Unit[unit]._ReallyEnabled) + last_stage = unit; - for (unit = 0 ; unit < ctx->Const.MaxTextureUnits ; unit++) - if (ctx->Texture.Unit[unit]._ReallyEnabled) - emit_texblend( i830, unit, blendunit++, last_stage == unit ); + for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++) + if (ctx->Texture.Unit[unit]._ReallyEnabled) + emit_texblend(i830, unit, blendunit++, last_stage == unit); } else { - emit_passthrough( i830 ); + emit_passthrough(i830); } } - |