From de343680a3e6b2a588f8b3c844828b8d9e6cb6a5 Mon Sep 17 00:00:00 2001 From: Keith Whitwell Date: Wed, 2 Sep 2009 17:58:52 +0100 Subject: [PATCH] util: add version of u_blit_pixels which takes a writemask Values outside the writemask are set in the destination to {0,0,0,1} --- src/gallium/auxiliary/util/u_blit.c | 55 ++++++++++++++----- src/gallium/auxiliary/util/u_blit.h | 11 ++++ src/gallium/auxiliary/util/u_simple_shaders.c | 45 ++++++++++++++- src/gallium/auxiliary/util/u_simple_shaders.h | 4 ++ 4 files changed, 100 insertions(+), 15 deletions(-) diff --git a/src/gallium/auxiliary/util/u_blit.c b/src/gallium/auxiliary/util/u_blit.c index cda6dbd46d7..c516317d701 100644 --- a/src/gallium/auxiliary/util/u_blit.c +++ b/src/gallium/auxiliary/util/u_blit.c @@ -62,7 +62,7 @@ struct blit_state struct pipe_viewport_state viewport; void *vs; - void *fs; + void *fs[TGSI_WRITEMASK_XYZW + 1]; struct pipe_buffer *vbuf; /**< quad vertices */ unsigned vbuf_slot; @@ -125,7 +125,7 @@ util_create_blit(struct pipe_context *pipe, struct cso_context *cso) } /* fragment shader */ - ctx->fs = util_make_fragment_tex_shader(pipe); + ctx->fs[TGSI_WRITEMASK_XYZW] = util_make_fragment_tex_shader(pipe); ctx->vbuf = NULL; /* init vertex data that doesn't change */ @@ -146,9 +146,13 @@ void util_destroy_blit(struct blit_state *ctx) { struct pipe_context *pipe = ctx->pipe; + unsigned i; pipe->delete_vs_state(pipe, ctx->vs); - pipe->delete_fs_state(pipe, ctx->fs); + + for (i = 0; i < Elements(ctx->fs); i++) + if (ctx->fs[i]) + pipe->delete_fs_state(pipe, ctx->fs[i]); pipe_buffer_reference(&ctx->vbuf, NULL); @@ -299,14 +303,15 @@ regions_overlap(int srcX0, int srcY0, * XXX need some control over blitting Z and/or stencil. */ void -util_blit_pixels(struct blit_state *ctx, - struct pipe_surface *src, - int srcX0, int srcY0, - int srcX1, int srcY1, - struct pipe_surface *dst, - int dstX0, int dstY0, - int dstX1, int dstY1, - float z, uint filter) +util_blit_pixels_writemask(struct blit_state *ctx, + struct pipe_surface *src, + int srcX0, int srcY0, + int srcX1, int srcY1, + struct pipe_surface *dst, + int dstX0, int dstY0, + int dstX1, int dstY1, + float z, uint filter, + uint writemask) { struct pipe_context *pipe = ctx->pipe; struct pipe_screen *screen = pipe->screen; @@ -426,8 +431,11 @@ util_blit_pixels(struct blit_state *ctx, /* texture */ cso_set_sampler_textures(ctx->cso, 1, &tex); + if (ctx->fs[writemask] == NULL) + ctx->fs[writemask] = util_make_fragment_tex_shader_writemask(pipe, writemask); + /* shaders */ - cso_set_fragment_shader_handle(ctx->cso, ctx->fs); + cso_set_fragment_shader_handle(ctx->cso, ctx->fs[writemask]); cso_set_vertex_shader_handle(ctx->cso, ctx->vs); /* drawing dest */ @@ -462,6 +470,27 @@ util_blit_pixels(struct blit_state *ctx, } +void +util_blit_pixels(struct blit_state *ctx, + struct pipe_surface *src, + int srcX0, int srcY0, + int srcX1, int srcY1, + struct pipe_surface *dst, + int dstX0, int dstY0, + int dstX1, int dstY1, + float z, uint filter ) +{ + util_blit_pixels_writemask( ctx, src, + srcX0, srcY0, + srcX1, srcY1, + dst, + dstX0, dstY0, + dstX1, dstY1, + z, filter, + TGSI_WRITEMASK_XYZW ); +} + + /* Release vertex buffer at end of frame to avoid synchronous * rendering. */ @@ -535,7 +564,7 @@ util_blit_pixels_tex(struct blit_state *ctx, cso_set_sampler_textures(ctx->cso, 1, &tex); /* shaders */ - cso_set_fragment_shader_handle(ctx->cso, ctx->fs); + cso_set_fragment_shader_handle(ctx->cso, ctx->fs[TGSI_WRITEMASK_XYZW]); cso_set_vertex_shader_handle(ctx->cso, ctx->vs); /* drawing dest */ diff --git a/src/gallium/auxiliary/util/u_blit.h b/src/gallium/auxiliary/util/u_blit.h index c35beceda8d..a102021529e 100644 --- a/src/gallium/auxiliary/util/u_blit.h +++ b/src/gallium/auxiliary/util/u_blit.h @@ -60,6 +60,17 @@ util_blit_pixels(struct blit_state *ctx, int dstX1, int dstY1, float z, uint filter); +void +util_blit_pixels_writemask(struct blit_state *ctx, + struct pipe_surface *src, + int srcX0, int srcY0, + int srcX1, int srcY1, + struct pipe_surface *dst, + int dstX0, int dstY0, + int dstX1, int dstY1, + float z, uint filter, + uint writemask); + extern void util_blit_pixels_tex(struct blit_state *ctx, struct pipe_texture *tex, diff --git a/src/gallium/auxiliary/util/u_simple_shaders.c b/src/gallium/auxiliary/util/u_simple_shaders.c index e519c354d25..acc5b83c622 100644 --- a/src/gallium/auxiliary/util/u_simple_shaders.c +++ b/src/gallium/auxiliary/util/u_simple_shaders.c @@ -152,11 +152,14 @@ util_make_vertex_passthrough_shader(struct pipe_context *pipe, /** * Make simple fragment texture shader: - * TEX OUT[0], IN[0], SAMP[0], 2D; + * IMM {0,0,0,1} // (if writemask != 0xf) + * MOV OUT[0], IMM[0] // (if writemask != 0xf) + * TEX OUT[0].writemask, IN[0], SAMP[0], 2D; * END; */ void * -util_make_fragment_tex_shader(struct pipe_context *pipe) +util_make_fragment_tex_shader_writemask(struct pipe_context *pipe, + unsigned writemask ) { struct pipe_shader_state shader; struct tgsi_token tokens[100]; @@ -217,12 +220,43 @@ util_make_fragment_tex_shader(struct pipe_context *pipe) header, Elements(tokens) - ti); + + if (writemask != TGSI_WRITEMASK_XYZW) { + struct tgsi_full_immediate imm; + static const float value[4] = { 0, 0, 0, 1 }; + + imm = tgsi_default_full_immediate(); + imm.Immediate.NrTokens += 4; + imm.Immediate.DataType = TGSI_IMM_FLOAT32; + imm.u.Pointer = value; + + ti += tgsi_build_full_immediate(&imm, + &tokens[ti], + header, + Elements(tokens) - ti ); + + /* MOV instruction */ + inst = tgsi_default_full_instruction(); + inst.Instruction.Opcode = TGSI_OPCODE_MOV; + inst.Instruction.NumDstRegs = 1; + inst.FullDstRegisters[0].DstRegister.File = TGSI_FILE_OUTPUT; + inst.FullDstRegisters[0].DstRegister.Index = 0; + inst.Instruction.NumSrcRegs = 1; + inst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_IMMEDIATE; + inst.FullSrcRegisters[0].SrcRegister.Index = 0; + ti += tgsi_build_full_instruction(&inst, + &tokens[ti], + header, + Elements(tokens) - ti ); + } + /* TEX instruction */ inst = tgsi_default_full_instruction(); inst.Instruction.Opcode = TGSI_OPCODE_TEX; inst.Instruction.NumDstRegs = 1; inst.FullDstRegisters[0].DstRegister.File = TGSI_FILE_OUTPUT; inst.FullDstRegisters[0].DstRegister.Index = 0; + inst.FullDstRegisters[0].DstRegister.WriteMask = writemask; inst.Instruction.NumSrcRegs = 2; inst.InstructionExtTexture.Texture = TGSI_TEXTURE_2D; inst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_INPUT; @@ -253,6 +287,13 @@ util_make_fragment_tex_shader(struct pipe_context *pipe) return pipe->create_fs_state(pipe, &shader); } +void * +util_make_fragment_tex_shader(struct pipe_context *pipe ) +{ + return util_make_fragment_tex_shader_writemask( pipe, + TGSI_WRITEMASK_XYZW ); +} + diff --git a/src/gallium/auxiliary/util/u_simple_shaders.h b/src/gallium/auxiliary/util/u_simple_shaders.h index 6f8d96af9bc..d2e80d6eb4d 100644 --- a/src/gallium/auxiliary/util/u_simple_shaders.h +++ b/src/gallium/auxiliary/util/u_simple_shaders.h @@ -49,6 +49,10 @@ util_make_vertex_passthrough_shader(struct pipe_context *pipe, const uint *semantic_indexes); +extern void * +util_make_fragment_tex_shader_writemask(struct pipe_context *pipe, + unsigned writemask ); + extern void * util_make_fragment_tex_shader(struct pipe_context *pipe); -- 2.30.2