From: Alex Deucher Date: Mon, 20 Jul 2009 22:50:59 +0000 (-0400) Subject: r600: add blending support X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=265d5eba658f38f5a9d12d57b701e4ffe49100eb;p=mesa.git r600: add blending support --- diff --git a/src/mesa/drivers/dri/r600/r700_state.c b/src/mesa/drivers/dri/r600/r700_state.c index 1d6d398f63e..070cea56f8e 100644 --- a/src/mesa/drivers/dri/r600/r700_state.c +++ b/src/mesa/drivers/dri/r600/r700_state.c @@ -312,17 +312,211 @@ static void r700AlphaFunc(GLcontext * ctx, GLenum func, GLfloat ref) //--------- static void r700BlendColor(GLcontext * ctx, const GLfloat cf[4]) //---------------- { + context_t *context = R700_CONTEXT(ctx); + R700_CHIP_CONTEXT *r700 = (R700_CHIP_CONTEXT*)(&context->hw); + + r700->CB_BLEND_RED.f32All = cf[0]; + r700->CB_BLEND_GREEN.f32All = cf[1]; + r700->CB_BLEND_BLUE.f32All = cf[2]; + r700->CB_BLEND_ALPHA.f32All = cf[3]; +} + +static int blend_factor(GLenum factor, GLboolean is_src) +{ + switch (factor) { + case GL_ZERO: + return BLEND_ZERO; + break; + case GL_ONE: + return BLEND_ONE; + break; + case GL_DST_COLOR: + return BLEND_DST_COLOR; + break; + case GL_ONE_MINUS_DST_COLOR: + return BLEND_ONE_MINUS_DST_COLOR; + break; + case GL_SRC_COLOR: + return BLEND_SRC_COLOR; + break; + case GL_ONE_MINUS_SRC_COLOR: + return BLEND_ONE_MINUS_SRC_COLOR; + break; + case GL_SRC_ALPHA: + return BLEND_SRC_ALPHA; + break; + case GL_ONE_MINUS_SRC_ALPHA: + return BLEND_ONE_MINUS_SRC_ALPHA; + break; + case GL_DST_ALPHA: + return BLEND_DST_ALPHA; + break; + case GL_ONE_MINUS_DST_ALPHA: + return BLEND_ONE_MINUS_DST_ALPHA; + break; + case GL_SRC_ALPHA_SATURATE: + return (is_src) ? BLEND_SRC_ALPHA_SATURATE : BLEND_ZERO; + break; + case GL_CONSTANT_COLOR: + return BLEND_CONSTANT_COLOR; + break; + case GL_ONE_MINUS_CONSTANT_COLOR: + return BLEND_ONE_MINUS_CONSTANT_COLOR; + break; + case GL_CONSTANT_ALPHA: + return BLEND_CONSTANT_ALPHA; + break; + case GL_ONE_MINUS_CONSTANT_ALPHA: + return BLEND_ONE_MINUS_CONSTANT_ALPHA; + break; + default: + fprintf(stderr, "unknown blend factor %x\n", factor); + return (is_src) ? BLEND_ONE : BLEND_ZERO; + break; + } +} + +static void r700SetBlendState(GLcontext * ctx) +{ + context_t *context = R700_CONTEXT(ctx); + R700_CHIP_CONTEXT *r700 = (R700_CHIP_CONTEXT*)(&context->hw); + int id = 0; + uint32_t blend_reg = 0, eqn, eqnA; + + if (RGBA_LOGICOP_ENABLED(ctx) || !ctx->Color.BlendEnabled) { + SETfield(blend_reg, + BLEND_ONE, COLOR_SRCBLEND_shift, COLOR_SRCBLEND_mask); + SETfield(blend_reg, + BLEND_ZERO, COLOR_DESTBLEND_shift, COLOR_DESTBLEND_mask); + SETfield(blend_reg, + COMB_DST_PLUS_SRC, COLOR_COMB_FCN_shift, COLOR_COMB_FCN_mask); + SETfield(blend_reg, + BLEND_ONE, ALPHA_SRCBLEND_shift, ALPHA_SRCBLEND_mask); + SETfield(blend_reg, + BLEND_ZERO, ALPHA_DESTBLEND_shift, ALPHA_DESTBLEND_mask); + SETfield(blend_reg, + COMB_DST_PLUS_SRC, ALPHA_COMB_FCN_shift, ALPHA_COMB_FCN_mask); + if (context->radeon.radeonScreen->chip_family == CHIP_FAMILY_R600) + r700->CB_BLEND_CONTROL.u32All = blend_reg; + else + r700->render_target[id].CB_BLEND0_CONTROL.u32All = blend_reg; + return; + } + + SETfield(blend_reg, + blend_factor(ctx->Color.BlendSrcRGB, GL_TRUE), + COLOR_SRCBLEND_shift, COLOR_SRCBLEND_mask); + SETfield(blend_reg, + blend_factor(ctx->Color.BlendDstRGB, GL_FALSE), + COLOR_DESTBLEND_shift, COLOR_DESTBLEND_mask); + + switch (ctx->Color.BlendEquationRGB) { + case GL_FUNC_ADD: + eqn = COMB_DST_PLUS_SRC; + break; + case GL_FUNC_SUBTRACT: + eqn = COMB_SRC_MINUS_DST; + break; + case GL_FUNC_REVERSE_SUBTRACT: + eqn = COMB_DST_MINUS_SRC; + break; + case GL_MIN: + eqn = COMB_MIN_DST_SRC; + SETfield(blend_reg, + BLEND_ONE, + COLOR_SRCBLEND_shift, COLOR_SRCBLEND_mask); + SETfield(blend_reg, + BLEND_ONE, + COLOR_DESTBLEND_shift, COLOR_DESTBLEND_mask); + break; + case GL_MAX: + eqn = COMB_MAX_DST_SRC; + SETfield(blend_reg, + BLEND_ONE, + COLOR_SRCBLEND_shift, COLOR_SRCBLEND_mask); + SETfield(blend_reg, + BLEND_ONE, + COLOR_DESTBLEND_shift, COLOR_DESTBLEND_mask); + break; + + default: + fprintf(stderr, + "[%s:%u] Invalid RGB blend equation (0x%04x).\n", + __FUNCTION__, __LINE__, ctx->Color.BlendEquationRGB); + return; + } + SETfield(blend_reg, + eqn, COLOR_COMB_FCN_shift, COLOR_COMB_FCN_mask); + + SETfield(blend_reg, + blend_factor(ctx->Color.BlendSrcRGB, GL_TRUE), + ALPHA_SRCBLEND_shift, ALPHA_SRCBLEND_mask); + SETfield(blend_reg, + blend_factor(ctx->Color.BlendDstRGB, GL_FALSE), + ALPHA_DESTBLEND_shift, ALPHA_DESTBLEND_mask); + + switch (ctx->Color.BlendEquationA) { + case GL_FUNC_ADD: + eqnA = COMB_DST_PLUS_SRC; + break; + case GL_FUNC_SUBTRACT: + eqnA = COMB_SRC_MINUS_DST; + break; + case GL_FUNC_REVERSE_SUBTRACT: + eqnA = COMB_DST_MINUS_SRC; + break; + case GL_MIN: + eqnA = COMB_MIN_DST_SRC; + SETfield(blend_reg, + BLEND_ONE, + ALPHA_SRCBLEND_shift, ALPHA_SRCBLEND_mask); + SETfield(blend_reg, + BLEND_ONE, + ALPHA_DESTBLEND_shift, ALPHA_DESTBLEND_mask); + break; + case GL_MAX: + eqnA = COMB_MAX_DST_SRC; + SETfield(blend_reg, + BLEND_ONE, + ALPHA_SRCBLEND_shift, ALPHA_SRCBLEND_mask); + SETfield(blend_reg, + BLEND_ONE, + ALPHA_DESTBLEND_shift, ALPHA_DESTBLEND_mask); + break; + default: + fprintf(stderr, + "[%s:%u] Invalid A blend equation (0x%04x).\n", + __FUNCTION__, __LINE__, ctx->Color.BlendEquationA); + return; + } + + SETfield(blend_reg, + eqnA, ALPHA_COMB_FCN_shift, ALPHA_COMB_FCN_mask); + + SETbit(r700->render_target[id].CB_BLEND0_CONTROL.u32All, SEPARATE_ALPHA_BLEND_bit); + + if (context->radeon.radeonScreen->chip_family == CHIP_FAMILY_R600) + r700->CB_BLEND_CONTROL.u32All = blend_reg; + else { + r700->render_target[id].CB_BLEND0_CONTROL.u32All = blend_reg; + SETbit(r700->CB_COLOR_CONTROL.u32All, PER_MRT_BLEND_bit); + } + SETfield(r700->CB_COLOR_CONTROL.u32All, (1 << id), + TARGET_BLEND_ENABLE_shift, TARGET_BLEND_ENABLE_mask); + } static void r700BlendEquationSeparate(GLcontext * ctx, GLenum modeRGB, GLenum modeA) //----------------- { + r700SetBlendState(ctx); } static void r700BlendFuncSeparate(GLcontext * ctx, GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorA, GLenum dfactorA) //------------------------ { + r700SetBlendState(ctx); } /** @@ -440,7 +634,7 @@ static void r700Enable(GLcontext * ctx, GLenum cap, GLboolean state) //--------- r700SetLogicOpState(ctx); /* fall-through, because logic op overrides blending */ case GL_BLEND: - //r700SetBlendState(ctx); + r700SetBlendState(ctx); break; case GL_CLIP_PLANE0: case GL_CLIP_PLANE1: @@ -471,7 +665,7 @@ static void r700Enable(GLcontext * ctx, GLenum cap, GLboolean state) //--------- break; case GL_LINE_STIPPLE: r700UpdateLineStipple(ctx); - break; + break; default: break; } @@ -833,9 +1027,6 @@ void r700SetRenderTarget(context_t *context, int id) SETbit(r700->render_target[id].CB_COLOR0_INFO.u32All, BLEND_CLAMP_bit); SETfield(r700->render_target[id].CB_COLOR0_INFO.u32All, NUMBER_UNORM, NUMBER_TYPE_shift, NUMBER_TYPE_mask); - CLEARfield(r700->render_target[id].CB_BLEND0_CONTROL.u32All, COLOR_SRCBLEND_mask); /* no dst blend */ - CLEARfield(r700->render_target[id].CB_BLEND0_CONTROL.u32All, ALPHA_SRCBLEND_mask); /* no dst blend */ - r700->render_target[id].enabled = GL_TRUE; } @@ -1152,8 +1343,8 @@ void r700InitState(GLcontext * ctx) //------------------- if (context->radeon.radeonScreen->chip_family >= CHIP_FAMILY_RV770) SETfield(r700->SPI_THREAD_GROUPING.u32All, 1, PS_GROUPING_shift, PS_GROUPING_mask); + r700SetBlendState(ctx); r700SetLogicOpState(ctx); - CLEARbit(r700->CB_COLOR_CONTROL.u32All, PER_MRT_BLEND_bit); r700->DB_SHADER_CONTROL.u32All = 0; SETbit(r700->DB_SHADER_CONTROL.u32All, DUAL_EXPORT_ENABLE_bit); @@ -1245,13 +1436,6 @@ void r700InitState(GLcontext * ctx) //------------------- r700->CB_FOG_GREEN_R6XX.u32All = 0; //r6xx only r700->CB_FOG_BLUE_R6XX.u32All = 0; //r6xx only - r700->CB_BLEND_RED.u32All = 0; - r700->CB_BLEND_GREEN.u32All = 0; - r700->CB_BLEND_BLUE.u32All = 0; - r700->CB_BLEND_ALPHA.u32All = 0; - - r700->CB_BLEND_CONTROL.u32All = 0; - /* Disable color compares */ SETfield(r700->CB_CLRCMP_CONTROL.u32All, CLRCMP_DRAW_ALWAYS, CLRCMP_FCN_SRC_shift, CLRCMP_FCN_SRC_mask);