From 683e7091a953204c9aee1410ac44be3b69bae9fc Mon Sep 17 00:00:00 2001 From: Keith Whitwell Date: Fri, 13 Mar 2009 16:04:52 +0000 Subject: [PATCH] gallium: consolidate bypass_vs and bypass_clipping flags The draw module provides a similar interface to the driver which is retained as various bits of hardware may be able to take on incremental parts of the vertex pipeline. However, there's no need to advertise all this complexity to the state tracker. There are basically two modes now - normal and passthrough/screen-coords. --- src/gallium/auxiliary/draw/draw_context.c | 4 ++-- src/gallium/auxiliary/draw/draw_pt.c | 2 +- src/gallium/auxiliary/draw/draw_pt.h | 2 +- .../auxiliary/draw/draw_pt_fetch_shade_emit.c | 3 ++- .../auxiliary/draw/draw_pt_fetch_shade_pipeline.c | 21 ++++++++++--------- src/gallium/auxiliary/draw/draw_pt_post_vs.c | 4 ++-- src/gallium/auxiliary/util/u_blit.c | 24 +++++----------------- src/gallium/auxiliary/util/u_gen_mipmap.c | 23 +++++---------------- src/gallium/drivers/trace/tr_state.c | 3 +-- src/gallium/include/pipe/p_state.h | 12 ++++++++--- src/mesa/state_tracker/st_cb_bitmap.c | 1 - src/mesa/state_tracker/st_cb_clear.c | 23 ++++++--------------- 12 files changed, 45 insertions(+), 77 deletions(-) diff --git a/src/gallium/auxiliary/draw/draw_context.c b/src/gallium/auxiliary/draw/draw_context.c index 581532c..a4f1fcd 100644 --- a/src/gallium/auxiliary/draw/draw_context.c +++ b/src/gallium/auxiliary/draw/draw_context.c @@ -127,7 +127,7 @@ void draw_set_rasterizer_state( struct draw_context *draw, draw->rasterizer = raster; draw->bypass_clipping = - ((draw->rasterizer && draw->rasterizer->bypass_clipping) || + ((draw->rasterizer && draw->rasterizer->bypass_vs_clip_and_viewport) || draw->driver.bypass_clipping); } @@ -139,7 +139,7 @@ void draw_set_driver_clipping( struct draw_context *draw, draw->driver.bypass_clipping = bypass_clipping; draw->bypass_clipping = - ((draw->rasterizer && draw->rasterizer->bypass_clipping) || + ((draw->rasterizer && draw->rasterizer->bypass_vs_clip_and_viewport) || draw->driver.bypass_clipping); } diff --git a/src/gallium/auxiliary/draw/draw_pt.c b/src/gallium/auxiliary/draw/draw_pt.c index 4e5ffa0..9ea0cbe 100644 --- a/src/gallium/auxiliary/draw/draw_pt.c +++ b/src/gallium/auxiliary/draw/draw_pt.c @@ -87,7 +87,7 @@ draw_pt_arrays(struct draw_context *draw, opt |= PT_CLIPTEST; } - if (!draw->rasterizer->bypass_vs) { + if (!draw->rasterizer->bypass_vs_clip_and_viewport) { opt |= PT_SHADE; } } diff --git a/src/gallium/auxiliary/draw/draw_pt.h b/src/gallium/auxiliary/draw/draw_pt.h index aecaeee..6f3e1e0 100644 --- a/src/gallium/auxiliary/draw/draw_pt.h +++ b/src/gallium/auxiliary/draw/draw_pt.h @@ -215,7 +215,7 @@ boolean draw_pt_post_vs_run( struct pt_post_vs *pvs, void draw_pt_post_vs_prepare( struct pt_post_vs *pvs, boolean bypass_clipping, - boolean identity_viewport, + boolean bypass_viewport, boolean opengl ); struct pt_post_vs *draw_pt_post_vs_create( struct draw_context *draw ); diff --git a/src/gallium/auxiliary/draw/draw_pt_fetch_shade_emit.c b/src/gallium/auxiliary/draw/draw_pt_fetch_shade_emit.c index cd9cd4b..44147ae 100644 --- a/src/gallium/auxiliary/draw/draw_pt_fetch_shade_emit.c +++ b/src/gallium/auxiliary/draw/draw_pt_fetch_shade_emit.c @@ -101,7 +101,8 @@ static void fse_prepare( struct draw_pt_middle_end *middle, fse->key.nr_elements = MAX2(fse->key.nr_outputs, /* outputs - translate to hw format */ fse->key.nr_inputs); /* inputs - fetch from api format */ - fse->key.viewport = !draw->identity_viewport; + fse->key.viewport = (!draw->rasterizer->bypass_vs_clip_and_viewport && + !draw->identity_viewport); fse->key.clip = !draw->bypass_clipping; fse->key.const_vbuffers = 0; diff --git a/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline.c b/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline.c index 38f9b60..11ac90f 100644 --- a/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline.c +++ b/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline.c @@ -84,7 +84,8 @@ static void fetch_pipeline_prepare( struct draw_pt_middle_end *middle, */ draw_pt_post_vs_prepare( fpme->post_vs, (boolean)draw->bypass_clipping, - (boolean)draw->identity_viewport, + (boolean)(draw->identity_viewport || + draw->rasterizer->bypass_vs_clip_and_viewport), (boolean)draw->rasterizer->gl_rasterization_rules ); @@ -140,9 +141,9 @@ static void fetch_pipeline_run( struct draw_pt_middle_end *middle, (char *)pipeline_verts ); /* Run the shader, note that this overwrites the data[] parts of - * the pipeline verts. If there is no shader, ie a bypass shader, - * then the inputs == outputs, and are already in the correct - * place. + * the pipeline verts. If there is no shader, eg if + * bypass_vs_clip_and_viewport, then the inputs == outputs, and are + * already in the correct place. */ if (opt & PT_SHADE) { @@ -216,9 +217,9 @@ static void fetch_pipeline_linear_run( struct draw_pt_middle_end *middle, (char *)pipeline_verts ); /* Run the shader, note that this overwrites the data[] parts of - * the pipeline verts. If there is no shader, ie a bypass shader, - * then the inputs == outputs, and are already in the correct - * place. + * the pipeline verts. If there is no shader, ie if + * bypass_vs_clip_and_viewport, then the inputs == outputs, and are + * already in the correct place. */ if (opt & PT_SHADE) { @@ -286,9 +287,9 @@ static boolean fetch_pipeline_linear_run_elts( struct draw_pt_middle_end *middle (char *)pipeline_verts ); /* Run the shader, note that this overwrites the data[] parts of - * the pipeline verts. If there is no shader, ie a bypass shader, - * then the inputs == outputs, and are already in the correct - * place. + * the pipeline verts. If there is no shader, ie if + * bypass_vs_clip_and_viewport, then the inputs == outputs, and are + * already in the correct place. */ if (opt & PT_SHADE) { diff --git a/src/gallium/auxiliary/draw/draw_pt_post_vs.c b/src/gallium/auxiliary/draw/draw_pt_post_vs.c index 96dc706..00d7197 100644 --- a/src/gallium/auxiliary/draw/draw_pt_post_vs.c +++ b/src/gallium/auxiliary/draw/draw_pt_post_vs.c @@ -200,11 +200,11 @@ boolean draw_pt_post_vs_run( struct pt_post_vs *pvs, void draw_pt_post_vs_prepare( struct pt_post_vs *pvs, boolean bypass_clipping, - boolean identity_viewport, + boolean bypass_viewport, boolean opengl ) { if (bypass_clipping) { - if (identity_viewport) + if (bypass_viewport) pvs->run = post_vs_none; else pvs->run = post_vs_viewport; diff --git a/src/gallium/auxiliary/util/u_blit.c b/src/gallium/auxiliary/util/u_blit.c index 98bb6a2..deb68c4 100644 --- a/src/gallium/auxiliary/util/u_blit.c +++ b/src/gallium/auxiliary/util/u_blit.c @@ -102,8 +102,7 @@ util_create_blit(struct pipe_context *pipe, struct cso_context *cso) memset(&ctx->rasterizer, 0, sizeof(ctx->rasterizer)); ctx->rasterizer.front_winding = PIPE_WINDING_CW; ctx->rasterizer.cull_mode = PIPE_WINDING_NONE; - ctx->rasterizer.bypass_clipping = 1; - /*ctx->rasterizer.bypass_vs = 1;*/ + ctx->rasterizer.bypass_vs_clip_and_viewport = 1; ctx->rasterizer.gl_rasterization_rules = 1; /* samplers */ @@ -116,17 +115,10 @@ util_create_blit(struct pipe_context *pipe, struct cso_context *cso) ctx->sampler.mag_img_filter = 0; /* set later */ ctx->sampler.normalized_coords = 1; - /* viewport (identity, we setup vertices in wincoords) */ - ctx->viewport.scale[0] = 1.0; - ctx->viewport.scale[1] = 1.0; - ctx->viewport.scale[2] = 1.0; - ctx->viewport.scale[3] = 1.0; - ctx->viewport.translate[0] = 0.0; - ctx->viewport.translate[1] = 0.0; - ctx->viewport.translate[2] = 0.0; - ctx->viewport.translate[3] = 0.0; - - /* vertex shader */ + + /* vertex shader - still required to provide the linkage between + * fragment shader input semantics and vertex_element/buffers. + */ { const uint semantic_names[] = { TGSI_SEMANTIC_POSITION, TGSI_SEMANTIC_GENERIC }; @@ -374,13 +366,11 @@ util_blit_pixels(struct blit_state *ctx, cso_save_framebuffer(ctx->cso); cso_save_fragment_shader(ctx->cso); cso_save_vertex_shader(ctx->cso); - cso_save_viewport(ctx->cso); /* set misc state we care about */ cso_set_blend(ctx->cso, &ctx->blend); cso_set_depth_stencil_alpha(ctx->cso, &ctx->depthstencil); cso_set_rasterizer(ctx->cso, &ctx->rasterizer); - cso_set_viewport(ctx->cso, &ctx->viewport); /* sampler */ ctx->sampler.min_img_filter = filter; @@ -422,7 +412,6 @@ util_blit_pixels(struct blit_state *ctx, cso_restore_framebuffer(ctx->cso); cso_restore_fragment_shader(ctx->cso); cso_restore_vertex_shader(ctx->cso); - cso_restore_viewport(ctx->cso); pipe_texture_reference(&tex, NULL); } @@ -485,13 +474,11 @@ util_blit_pixels_tex(struct blit_state *ctx, cso_save_framebuffer(ctx->cso); cso_save_fragment_shader(ctx->cso); cso_save_vertex_shader(ctx->cso); - cso_save_viewport(ctx->cso); /* set misc state we care about */ cso_set_blend(ctx->cso, &ctx->blend); cso_set_depth_stencil_alpha(ctx->cso, &ctx->depthstencil); cso_set_rasterizer(ctx->cso, &ctx->rasterizer); - cso_set_viewport(ctx->cso, &ctx->viewport); /* sampler */ ctx->sampler.min_img_filter = filter; @@ -536,5 +523,4 @@ util_blit_pixels_tex(struct blit_state *ctx, cso_restore_framebuffer(ctx->cso); cso_restore_fragment_shader(ctx->cso); cso_restore_vertex_shader(ctx->cso); - cso_restore_viewport(ctx->cso); } diff --git a/src/gallium/auxiliary/util/u_gen_mipmap.c b/src/gallium/auxiliary/util/u_gen_mipmap.c index 847b4a6..df4a866 100644 --- a/src/gallium/auxiliary/util/u_gen_mipmap.c +++ b/src/gallium/auxiliary/util/u_gen_mipmap.c @@ -62,7 +62,6 @@ struct gen_mipmap_state struct pipe_depth_stencil_alpha_state depthstencil; struct pipe_rasterizer_state rasterizer; struct pipe_sampler_state sampler; - struct pipe_viewport_state viewport; void *vs; void *fs; @@ -1292,8 +1291,7 @@ util_create_gen_mipmap(struct pipe_context *pipe, memset(&ctx->rasterizer, 0, sizeof(ctx->rasterizer)); ctx->rasterizer.front_winding = PIPE_WINDING_CW; ctx->rasterizer.cull_mode = PIPE_WINDING_NONE; - ctx->rasterizer.bypass_clipping = 1; - /*ctx->rasterizer.bypass_vs = 1;*/ + ctx->rasterizer.bypass_vs_clip_and_viewport = 1; ctx->rasterizer.gl_rasterization_rules = 1; /* sampler state */ @@ -1304,17 +1302,9 @@ util_create_gen_mipmap(struct pipe_context *pipe, ctx->sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST; ctx->sampler.normalized_coords = 1; - /* viewport state (identity, verts are in wincoords) */ - ctx->viewport.scale[0] = 1.0; - ctx->viewport.scale[1] = 1.0; - ctx->viewport.scale[2] = 1.0; - ctx->viewport.scale[3] = 1.0; - ctx->viewport.translate[0] = 0.0; - ctx->viewport.translate[1] = 0.0; - ctx->viewport.translate[2] = 0.0; - ctx->viewport.translate[3] = 0.0; - - /* vertex shader */ + /* vertex shader - still needed to specify mapping from fragment + * shader input semantics to vertex elements + */ { const uint semantic_names[] = { TGSI_SEMANTIC_POSITION, TGSI_SEMANTIC_GENERIC }; @@ -1465,13 +1455,11 @@ util_gen_mipmap(struct gen_mipmap_state *ctx, cso_save_framebuffer(ctx->cso); cso_save_fragment_shader(ctx->cso); cso_save_vertex_shader(ctx->cso); - cso_save_viewport(ctx->cso); /* bind our state */ cso_set_blend(ctx->cso, &ctx->blend); cso_set_depth_stencil_alpha(ctx->cso, &ctx->depthstencil); cso_set_rasterizer(ctx->cso, &ctx->rasterizer); - cso_set_viewport(ctx->cso, &ctx->viewport); cso_set_fragment_shader_handle(ctx->cso, ctx->fs); cso_set_vertex_shader_handle(ctx->cso, ctx->vs); @@ -1517,7 +1505,7 @@ util_gen_mipmap(struct gen_mipmap_state *ctx, cso_set_sampler_textures(ctx->cso, 1, &pt); - /* quad coords in window coords (bypassing clipping, viewport mapping) */ + /* quad coords in window coords (bypassing vs, clip and viewport) */ offset = set_vertex_data(ctx, (float) pt->width[dstLevel], (float) pt->height[dstLevel]); @@ -1544,5 +1532,4 @@ util_gen_mipmap(struct gen_mipmap_state *ctx, cso_restore_framebuffer(ctx->cso); cso_restore_fragment_shader(ctx->cso); cso_restore_vertex_shader(ctx->cso); - cso_restore_viewport(ctx->cso); } diff --git a/src/gallium/drivers/trace/tr_state.c b/src/gallium/drivers/trace/tr_state.c index 11384b9..c305b09 100644 --- a/src/gallium/drivers/trace/tr_state.c +++ b/src/gallium/drivers/trace/tr_state.c @@ -122,8 +122,7 @@ void trace_dump_rasterizer_state(const struct pipe_rasterizer_state *state) trace_dump_member(uint, state, line_stipple_factor); trace_dump_member(uint, state, line_stipple_pattern); trace_dump_member(bool, state, line_last_pixel); - trace_dump_member(bool, state, bypass_clipping); - trace_dump_member(bool, state, bypass_vs); + trace_dump_member(bool, state, bypass_vs_clip_and_viewport); trace_dump_member(bool, state, origin_lower_left); trace_dump_member(bool, state, flatshade_first); trace_dump_member(bool, state, gl_rasterization_rules); diff --git a/src/gallium/include/pipe/p_state.h b/src/gallium/include/pipe/p_state.h index 57a7672..aad41fa 100644 --- a/src/gallium/include/pipe/p_state.h +++ b/src/gallium/include/pipe/p_state.h @@ -108,9 +108,15 @@ struct pipe_rasterizer_state unsigned line_stipple_factor:8; /**< [1..256] actually */ unsigned line_stipple_pattern:16; unsigned line_last_pixel:1; - unsigned bypass_clipping:1; - unsigned bypass_vs:1; /**< Skip the vertex shader. Note that the shader is - still needed though, to indicate inputs/outputs */ + + /** + * Vertex coordinates are pre-transformed to screen space. Skip + * the vertex shader, clipping and viewport processing. Note that + * a vertex shader is still needed though, to indicate the mapping + * from vertex elements to fragment shader input semantics. + */ + unsigned bypass_vs_clip_and_viewport:1; + unsigned origin_lower_left:1; /**< Is (0,0) the lower-left corner? */ unsigned flatshade_first:1; /**< take color attribute from the first vertex of a primitive */ unsigned gl_rasterization_rules:1; /**< enable tweaks for GL rasterization? */ diff --git a/src/mesa/state_tracker/st_cb_bitmap.c b/src/mesa/state_tracker/st_cb_bitmap.c index f9f1780..2d547dd 100644 --- a/src/mesa/state_tracker/st_cb_bitmap.c +++ b/src/mesa/state_tracker/st_cb_bitmap.c @@ -787,7 +787,6 @@ st_init_bitmap(struct st_context *st) /* init baseline rasterizer state once */ memset(&st->bitmap.rasterizer, 0, sizeof(st->bitmap.rasterizer)); st->bitmap.rasterizer.gl_rasterization_rules = 1; - st->bitmap.rasterizer.bypass_vs = 1; /* find a usable texture format */ if (screen->is_format_supported(screen, PIPE_FORMAT_I8_UNORM, PIPE_TEXTURE_2D, diff --git a/src/mesa/state_tracker/st_cb_clear.c b/src/mesa/state_tracker/st_cb_clear.c index 8206733..dd9ba28 100644 --- a/src/mesa/state_tracker/st_cb_clear.c +++ b/src/mesa/state_tracker/st_cb_clear.c @@ -60,20 +60,11 @@ st_init_clear(struct st_context *st) { struct pipe_context *pipe = st->pipe; - /* rasterizer state: bypass clipping */ memset(&st->clear.raster, 0, sizeof(st->clear.raster)); st->clear.raster.gl_rasterization_rules = 1; - st->clear.raster.bypass_clipping = 1; - - /* viewport state: identity since we're drawing in window coords */ - st->clear.viewport.scale[0] = 1.0; - st->clear.viewport.scale[1] = 1.0; - st->clear.viewport.scale[2] = 1.0; - st->clear.viewport.scale[3] = 1.0; - st->clear.viewport.translate[0] = 0.0; - st->clear.viewport.translate[1] = 0.0; - st->clear.viewport.translate[2] = 0.0; - st->clear.viewport.translate[3] = 0.0; + + /* rasterizer state: bypass vertex shader, clipping and viewport */ + st->clear.raster.bypass_vs_clip_and_viewport = 1; /* fragment shader state: color pass-through program */ st->clear.fs = @@ -125,8 +116,9 @@ is_depth_stencil_format(enum pipe_format pipeFormat) /** * Draw a screen-aligned quadrilateral. - * Coords are window coords with y=0=bottom. These coords will be transformed - * by the vertex shader and viewport transform (which will flip Y if needed). + * Coords are window coords with y=0=bottom. These will be passed + * through unmodified to the rasterizer as we have set + * rasterizer->bypass_vs_clip_and_viewport. */ static void draw_quad(GLcontext *ctx, @@ -226,7 +218,6 @@ clear_with_quad(GLcontext *ctx, cso_save_blend(st->cso_context); cso_save_depth_stencil_alpha(st->cso_context); cso_save_rasterizer(st->cso_context); - cso_save_viewport(st->cso_context); cso_save_fragment_shader(st->cso_context); cso_save_vertex_shader(st->cso_context); @@ -278,7 +269,6 @@ clear_with_quad(GLcontext *ctx, } cso_set_rasterizer(st->cso_context, &st->clear.raster); - cso_set_viewport(st->cso_context, &st->clear.viewport); cso_set_fragment_shader_handle(st->cso_context, st->clear.fs); cso_set_vertex_shader_handle(st->cso_context, st->clear.vs); @@ -290,7 +280,6 @@ clear_with_quad(GLcontext *ctx, cso_restore_blend(st->cso_context); cso_restore_depth_stencil_alpha(st->cso_context); cso_restore_rasterizer(st->cso_context); - cso_restore_viewport(st->cso_context); cso_restore_fragment_shader(st->cso_context); cso_restore_vertex_shader(st->cso_context); } -- 2.7.4