From 4b4dc778b6289891d18ad62efdea86b060f07061 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Wed, 8 Dec 2010 10:12:20 -0800 Subject: [PATCH] i965: Set up the per-render-target blend state on gen6. This will let us get EXT_draw_buffers2 blending and colormasking working. --- src/mesa/drivers/dri/i965/gen6_cc.c | 95 +++++++++++++++-------------- 1 file changed, 49 insertions(+), 46 deletions(-) diff --git a/src/mesa/drivers/dri/i965/gen6_cc.c b/src/mesa/drivers/dri/i965/gen6_cc.c index dfcef209618..c2631a7b4df 100644 --- a/src/mesa/drivers/dri/i965/gen6_cc.c +++ b/src/mesa/drivers/dri/i965/gen6_cc.c @@ -35,7 +35,7 @@ struct gen6_blend_state_key { GLboolean color_blend, alpha_enabled; GLboolean dither; - GLboolean color_mask[4]; + GLboolean color_mask[BRW_MAX_DRAW_BUFFERS][4]; GLenum logic_op; @@ -55,7 +55,7 @@ blend_state_populate_key(struct brw_context *brw, memset(key, 0, sizeof(*key)); /* _NEW_COLOR */ - memcpy(key->color_mask, ctx->Color.ColorMask[0], sizeof(key->color_mask)); + memcpy(key->color_mask, ctx->Color.ColorMask, sizeof(key->color_mask)); /* _NEW_COLOR */ if (ctx->Color._LogicOpEnabled) @@ -91,61 +91,64 @@ static drm_intel_bo * blend_state_create_from_key(struct brw_context *brw, struct gen6_blend_state_key *key) { - struct gen6_blend_state blend; + struct gen6_blend_state blend[BRW_MAX_DRAW_BUFFERS]; drm_intel_bo *bo; + int b; memset(&blend, 0, sizeof(blend)); - if (key->logic_op != GL_COPY) { - blend.blend1.logic_op_enable = 1; - blend.blend1.logic_op_func = intel_translate_logic_op(key->logic_op); - } else if (key->color_blend) { - GLenum eqRGB = key->blend_eq_rgb; - GLenum eqA = key->blend_eq_a; - GLenum srcRGB = key->blend_src_rgb; - GLenum dstRGB = key->blend_dst_rgb; - GLenum srcA = key->blend_src_a; - GLenum dstA = key->blend_dst_a; - - if (eqRGB == GL_MIN || eqRGB == GL_MAX) { - srcRGB = dstRGB = GL_ONE; + for (b = 0; b < BRW_MAX_DRAW_BUFFERS; b++) { + if (key->logic_op != GL_COPY) { + blend[b].blend1.logic_op_enable = 1; + blend[b].blend1.logic_op_func = intel_translate_logic_op(key->logic_op); + } else if (key->color_blend & (1 << b)) { + GLenum eqRGB = key->blend_eq_rgb; + GLenum eqA = key->blend_eq_a; + GLenum srcRGB = key->blend_src_rgb; + GLenum dstRGB = key->blend_dst_rgb; + GLenum srcA = key->blend_src_a; + GLenum dstA = key->blend_dst_a; + + if (eqRGB == GL_MIN || eqRGB == GL_MAX) { + srcRGB = dstRGB = GL_ONE; + } + + if (eqA == GL_MIN || eqA == GL_MAX) { + srcA = dstA = GL_ONE; + } + + blend[b].blend0.dest_blend_factor = brw_translate_blend_factor(dstRGB); + blend[b].blend0.source_blend_factor = brw_translate_blend_factor(srcRGB); + blend[b].blend0.blend_func = brw_translate_blend_equation(eqRGB); + + blend[b].blend0.ia_dest_blend_factor = brw_translate_blend_factor(dstA); + blend[b].blend0.ia_source_blend_factor = brw_translate_blend_factor(srcA); + blend[b].blend0.ia_blend_func = brw_translate_blend_equation(eqA); + + blend[b].blend0.blend_enable = 1; + blend[b].blend0.ia_blend_enable = (srcA != srcRGB || + dstA != dstRGB || + eqA != eqRGB); } - if (eqA == GL_MIN || eqA == GL_MAX) { - srcA = dstA = GL_ONE; - } - - blend.blend0.dest_blend_factor = brw_translate_blend_factor(dstRGB); - blend.blend0.source_blend_factor = brw_translate_blend_factor(srcRGB); - blend.blend0.blend_func = brw_translate_blend_equation(eqRGB); - - blend.blend0.ia_dest_blend_factor = brw_translate_blend_factor(dstA); - blend.blend0.ia_source_blend_factor = brw_translate_blend_factor(srcA); - blend.blend0.ia_blend_func = brw_translate_blend_equation(eqA); - - blend.blend0.blend_enable = 1; - blend.blend0.ia_blend_enable = (srcA != srcRGB || - dstA != dstRGB || - eqA != eqRGB); - } + if (key->alpha_enabled) { + blend[b].blend1.alpha_test_enable = 1; + blend[b].blend1.alpha_test_func = intel_translate_compare_func(key->alpha_func); - if (key->alpha_enabled) { - blend.blend1.alpha_test_enable = 1; - blend.blend1.alpha_test_func = intel_translate_compare_func(key->alpha_func); + } - } + if (key->dither) { + blend[b].blend1.dither_enable = 1; + blend[b].blend1.y_dither_offset = 0; + blend[b].blend1.x_dither_offset = 0; + } - if (key->dither) { - blend.blend1.dither_enable = 1; - blend.blend1.y_dither_offset = 0; - blend.blend1.x_dither_offset = 0; + blend[b].blend1.write_disable_r = !key->color_mask[b][0]; + blend[b].blend1.write_disable_g = !key->color_mask[b][1]; + blend[b].blend1.write_disable_b = !key->color_mask[b][2]; + blend[b].blend1.write_disable_a = !key->color_mask[b][3]; } - blend.blend1.write_disable_r = !key->color_mask[0]; - blend.blend1.write_disable_g = !key->color_mask[1]; - blend.blend1.write_disable_b = !key->color_mask[2]; - blend.blend1.write_disable_a = !key->color_mask[3]; - bo = brw_upload_cache(&brw->cache, BRW_BLEND_STATE, key, sizeof(*key), NULL, 0, -- 2.30.2