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r600: add blending support
This commit is contained in:
Alex Deucher
parent
a369963b18
commit
265d5eba65
1 changed files with 197 additions and 13 deletions
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@ -312,17 +312,211 @@ static void r700AlphaFunc(GLcontext * ctx, GLenum func, GLfloat ref) //---------
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static void r700BlendColor(GLcontext * ctx, const GLfloat cf[4]) //----------------
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{
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context_t *context = R700_CONTEXT(ctx);
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R700_CHIP_CONTEXT *r700 = (R700_CHIP_CONTEXT*)(&context->hw);
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r700->CB_BLEND_RED.f32All = cf[0];
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r700->CB_BLEND_GREEN.f32All = cf[1];
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r700->CB_BLEND_BLUE.f32All = cf[2];
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r700->CB_BLEND_ALPHA.f32All = cf[3];
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}
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static int blend_factor(GLenum factor, GLboolean is_src)
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{
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switch (factor) {
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case GL_ZERO:
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return BLEND_ZERO;
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break;
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case GL_ONE:
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return BLEND_ONE;
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break;
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case GL_DST_COLOR:
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return BLEND_DST_COLOR;
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break;
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case GL_ONE_MINUS_DST_COLOR:
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return BLEND_ONE_MINUS_DST_COLOR;
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break;
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case GL_SRC_COLOR:
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return BLEND_SRC_COLOR;
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break;
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case GL_ONE_MINUS_SRC_COLOR:
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return BLEND_ONE_MINUS_SRC_COLOR;
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break;
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case GL_SRC_ALPHA:
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return BLEND_SRC_ALPHA;
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break;
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case GL_ONE_MINUS_SRC_ALPHA:
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return BLEND_ONE_MINUS_SRC_ALPHA;
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break;
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case GL_DST_ALPHA:
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return BLEND_DST_ALPHA;
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break;
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case GL_ONE_MINUS_DST_ALPHA:
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return BLEND_ONE_MINUS_DST_ALPHA;
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break;
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case GL_SRC_ALPHA_SATURATE:
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return (is_src) ? BLEND_SRC_ALPHA_SATURATE : BLEND_ZERO;
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break;
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case GL_CONSTANT_COLOR:
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return BLEND_CONSTANT_COLOR;
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break;
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case GL_ONE_MINUS_CONSTANT_COLOR:
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return BLEND_ONE_MINUS_CONSTANT_COLOR;
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break;
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case GL_CONSTANT_ALPHA:
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return BLEND_CONSTANT_ALPHA;
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break;
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case GL_ONE_MINUS_CONSTANT_ALPHA:
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return BLEND_ONE_MINUS_CONSTANT_ALPHA;
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break;
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default:
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fprintf(stderr, "unknown blend factor %x\n", factor);
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return (is_src) ? BLEND_ONE : BLEND_ZERO;
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break;
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}
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}
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static void r700SetBlendState(GLcontext * ctx)
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{
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context_t *context = R700_CONTEXT(ctx);
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R700_CHIP_CONTEXT *r700 = (R700_CHIP_CONTEXT*)(&context->hw);
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int id = 0;
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uint32_t blend_reg = 0, eqn, eqnA;
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if (RGBA_LOGICOP_ENABLED(ctx) || !ctx->Color.BlendEnabled) {
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SETfield(blend_reg,
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BLEND_ONE, COLOR_SRCBLEND_shift, COLOR_SRCBLEND_mask);
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SETfield(blend_reg,
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BLEND_ZERO, COLOR_DESTBLEND_shift, COLOR_DESTBLEND_mask);
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SETfield(blend_reg,
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COMB_DST_PLUS_SRC, COLOR_COMB_FCN_shift, COLOR_COMB_FCN_mask);
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SETfield(blend_reg,
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BLEND_ONE, ALPHA_SRCBLEND_shift, ALPHA_SRCBLEND_mask);
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SETfield(blend_reg,
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BLEND_ZERO, ALPHA_DESTBLEND_shift, ALPHA_DESTBLEND_mask);
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SETfield(blend_reg,
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COMB_DST_PLUS_SRC, ALPHA_COMB_FCN_shift, ALPHA_COMB_FCN_mask);
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if (context->radeon.radeonScreen->chip_family == CHIP_FAMILY_R600)
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r700->CB_BLEND_CONTROL.u32All = blend_reg;
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else
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r700->render_target[id].CB_BLEND0_CONTROL.u32All = blend_reg;
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return;
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}
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SETfield(blend_reg,
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blend_factor(ctx->Color.BlendSrcRGB, GL_TRUE),
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COLOR_SRCBLEND_shift, COLOR_SRCBLEND_mask);
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SETfield(blend_reg,
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blend_factor(ctx->Color.BlendDstRGB, GL_FALSE),
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COLOR_DESTBLEND_shift, COLOR_DESTBLEND_mask);
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switch (ctx->Color.BlendEquationRGB) {
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case GL_FUNC_ADD:
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eqn = COMB_DST_PLUS_SRC;
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break;
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case GL_FUNC_SUBTRACT:
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eqn = COMB_SRC_MINUS_DST;
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break;
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case GL_FUNC_REVERSE_SUBTRACT:
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eqn = COMB_DST_MINUS_SRC;
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break;
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case GL_MIN:
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eqn = COMB_MIN_DST_SRC;
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SETfield(blend_reg,
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BLEND_ONE,
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COLOR_SRCBLEND_shift, COLOR_SRCBLEND_mask);
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SETfield(blend_reg,
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BLEND_ONE,
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COLOR_DESTBLEND_shift, COLOR_DESTBLEND_mask);
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break;
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case GL_MAX:
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eqn = COMB_MAX_DST_SRC;
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SETfield(blend_reg,
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BLEND_ONE,
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COLOR_SRCBLEND_shift, COLOR_SRCBLEND_mask);
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SETfield(blend_reg,
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BLEND_ONE,
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COLOR_DESTBLEND_shift, COLOR_DESTBLEND_mask);
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break;
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default:
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fprintf(stderr,
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"[%s:%u] Invalid RGB blend equation (0x%04x).\n",
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__FUNCTION__, __LINE__, ctx->Color.BlendEquationRGB);
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return;
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}
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SETfield(blend_reg,
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eqn, COLOR_COMB_FCN_shift, COLOR_COMB_FCN_mask);
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SETfield(blend_reg,
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blend_factor(ctx->Color.BlendSrcRGB, GL_TRUE),
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ALPHA_SRCBLEND_shift, ALPHA_SRCBLEND_mask);
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SETfield(blend_reg,
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blend_factor(ctx->Color.BlendDstRGB, GL_FALSE),
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ALPHA_DESTBLEND_shift, ALPHA_DESTBLEND_mask);
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switch (ctx->Color.BlendEquationA) {
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case GL_FUNC_ADD:
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eqnA = COMB_DST_PLUS_SRC;
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break;
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case GL_FUNC_SUBTRACT:
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eqnA = COMB_SRC_MINUS_DST;
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break;
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case GL_FUNC_REVERSE_SUBTRACT:
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eqnA = COMB_DST_MINUS_SRC;
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break;
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case GL_MIN:
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eqnA = COMB_MIN_DST_SRC;
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SETfield(blend_reg,
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BLEND_ONE,
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ALPHA_SRCBLEND_shift, ALPHA_SRCBLEND_mask);
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SETfield(blend_reg,
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BLEND_ONE,
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ALPHA_DESTBLEND_shift, ALPHA_DESTBLEND_mask);
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break;
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case GL_MAX:
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eqnA = COMB_MAX_DST_SRC;
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SETfield(blend_reg,
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BLEND_ONE,
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ALPHA_SRCBLEND_shift, ALPHA_SRCBLEND_mask);
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SETfield(blend_reg,
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BLEND_ONE,
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ALPHA_DESTBLEND_shift, ALPHA_DESTBLEND_mask);
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break;
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default:
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fprintf(stderr,
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"[%s:%u] Invalid A blend equation (0x%04x).\n",
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__FUNCTION__, __LINE__, ctx->Color.BlendEquationA);
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return;
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}
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SETfield(blend_reg,
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eqnA, ALPHA_COMB_FCN_shift, ALPHA_COMB_FCN_mask);
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SETbit(r700->render_target[id].CB_BLEND0_CONTROL.u32All, SEPARATE_ALPHA_BLEND_bit);
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if (context->radeon.radeonScreen->chip_family == CHIP_FAMILY_R600)
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r700->CB_BLEND_CONTROL.u32All = blend_reg;
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else {
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r700->render_target[id].CB_BLEND0_CONTROL.u32All = blend_reg;
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SETbit(r700->CB_COLOR_CONTROL.u32All, PER_MRT_BLEND_bit);
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}
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SETfield(r700->CB_COLOR_CONTROL.u32All, (1 << id),
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TARGET_BLEND_ENABLE_shift, TARGET_BLEND_ENABLE_mask);
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}
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static void r700BlendEquationSeparate(GLcontext * ctx,
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GLenum modeRGB, GLenum modeA) //-----------------
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{
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r700SetBlendState(ctx);
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}
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static void r700BlendFuncSeparate(GLcontext * ctx,
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GLenum sfactorRGB, GLenum dfactorRGB,
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GLenum sfactorA, GLenum dfactorA) //------------------------
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{
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r700SetBlendState(ctx);
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}
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/**
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@ -440,7 +634,7 @@ static void r700Enable(GLcontext * ctx, GLenum cap, GLboolean state) //---------
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r700SetLogicOpState(ctx);
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/* fall-through, because logic op overrides blending */
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case GL_BLEND:
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//r700SetBlendState(ctx);
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r700SetBlendState(ctx);
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break;
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case GL_CLIP_PLANE0:
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case GL_CLIP_PLANE1:
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@ -471,7 +665,7 @@ static void r700Enable(GLcontext * ctx, GLenum cap, GLboolean state) //---------
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break;
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case GL_LINE_STIPPLE:
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r700UpdateLineStipple(ctx);
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break;
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break;
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default:
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break;
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}
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@ -833,9 +1027,6 @@ void r700SetRenderTarget(context_t *context, int id)
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SETbit(r700->render_target[id].CB_COLOR0_INFO.u32All, BLEND_CLAMP_bit);
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SETfield(r700->render_target[id].CB_COLOR0_INFO.u32All, NUMBER_UNORM, NUMBER_TYPE_shift, NUMBER_TYPE_mask);
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CLEARfield(r700->render_target[id].CB_BLEND0_CONTROL.u32All, COLOR_SRCBLEND_mask); /* no dst blend */
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CLEARfield(r700->render_target[id].CB_BLEND0_CONTROL.u32All, ALPHA_SRCBLEND_mask); /* no dst blend */
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r700->render_target[id].enabled = GL_TRUE;
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}
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@ -1152,8 +1343,8 @@ void r700InitState(GLcontext * ctx) //-------------------
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if (context->radeon.radeonScreen->chip_family >= CHIP_FAMILY_RV770)
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SETfield(r700->SPI_THREAD_GROUPING.u32All, 1, PS_GROUPING_shift, PS_GROUPING_mask);
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r700SetBlendState(ctx);
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r700SetLogicOpState(ctx);
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CLEARbit(r700->CB_COLOR_CONTROL.u32All, PER_MRT_BLEND_bit);
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r700->DB_SHADER_CONTROL.u32All = 0;
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SETbit(r700->DB_SHADER_CONTROL.u32All, DUAL_EXPORT_ENABLE_bit);
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@ -1245,13 +1436,6 @@ void r700InitState(GLcontext * ctx) //-------------------
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r700->CB_FOG_GREEN_R6XX.u32All = 0; //r6xx only
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r700->CB_FOG_BLUE_R6XX.u32All = 0; //r6xx only
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r700->CB_BLEND_RED.u32All = 0;
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r700->CB_BLEND_GREEN.u32All = 0;
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r700->CB_BLEND_BLUE.u32All = 0;
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r700->CB_BLEND_ALPHA.u32All = 0;
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r700->CB_BLEND_CONTROL.u32All = 0;
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/* Disable color compares */
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SETfield(r700->CB_CLRCMP_CONTROL.u32All, CLRCMP_DRAW_ALWAYS,
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CLRCMP_FCN_SRC_shift, CLRCMP_FCN_SRC_mask);
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