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Diffstat (limited to 'src/gallium/auxiliary/util/u_blitter.c')
| -rw-r--r-- | src/gallium/auxiliary/util/u_blitter.c | 726 |
1 files changed, 726 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/u_blitter.c b/src/gallium/auxiliary/util/u_blitter.c new file mode 100644 index 0000000000..cef3b69e46 --- /dev/null +++ b/src/gallium/auxiliary/util/u_blitter.c @@ -0,0 +1,726 @@ +/************************************************************************** + * + * Copyright 2009 Marek Olšák <maraeo@gmail.com> + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +/** + * @file + * Blitter utility to facilitate acceleration of the clear, surface_copy, + * and surface_fill functions. + * + * @author Marek Olšák + */ + +#include "pipe/p_context.h" +#include "pipe/p_defines.h" +#include "pipe/p_inlines.h" +#include "pipe/p_shader_tokens.h" +#include "pipe/p_state.h" + +#include "util/u_format.h" +#include "util/u_memory.h" +#include "util/u_math.h" +#include "util/u_blitter.h" +#include "util/u_draw_quad.h" +#include "util/u_pack_color.h" +#include "util/u_rect.h" +#include "util/u_simple_shaders.h" +#include "util/u_texture.h" + +#define INVALID_PTR ((void*)~0) + +struct blitter_context_priv +{ + struct blitter_context blitter; + + struct pipe_context *pipe; /**< pipe context */ + struct pipe_buffer *vbuf; /**< quad */ + + float vertices[4][2][4]; /**< {pos, color} or {pos, texcoord} */ + + /* Templates for various state objects. */ + struct pipe_depth_stencil_alpha_state template_dsa; + struct pipe_sampler_state template_sampler_state; + + /* Constant state objects. */ + /* Vertex shaders. */ + void *vs_col; /**< Vertex shader which passes {pos, color} to the output */ + void *vs_tex; /**<Vertex shader which passes {pos, texcoord} to the output.*/ + + /* Fragment shaders. */ + /* FS which outputs a color to multiple color buffers. */ + void *fs_col[PIPE_MAX_COLOR_BUFS]; + + /* FS which outputs a color from a texture, + where the index is PIPE_TEXTURE_* to be sampled. */ + void *fs_texfetch_col[PIPE_MAX_TEXTURE_TYPES]; + + /* FS which outputs a depth from a texture, + where the index is PIPE_TEXTURE_* to be sampled. */ + void *fs_texfetch_depth[PIPE_MAX_TEXTURE_TYPES]; + + /* Blend state. */ + void *blend_write_color; /**< blend state with writemask of RGBA */ + void *blend_keep_color; /**< blend state with writemask of 0 */ + + /* Depth stencil alpha state. */ + void *dsa_write_depth_stencil[0xff]; /**< indices are stencil clear values */ + void *dsa_write_depth_keep_stencil; + void *dsa_keep_depth_stencil; + + /* Sampler state for clamping to a miplevel. */ + void *sampler_state[PIPE_MAX_TEXTURE_LEVELS]; + + /* Rasterizer state. */ + void *rs_state; +}; + +struct blitter_context *util_blitter_create(struct pipe_context *pipe) +{ + struct blitter_context_priv *ctx; + struct pipe_blend_state blend; + struct pipe_depth_stencil_alpha_state *dsa; + struct pipe_rasterizer_state rs_state; + struct pipe_sampler_state *sampler_state; + unsigned i; + + ctx = CALLOC_STRUCT(blitter_context_priv); + if (!ctx) + return NULL; + + ctx->pipe = pipe; + + /* init state objects for them to be considered invalid */ + ctx->blitter.saved_blend_state = INVALID_PTR; + ctx->blitter.saved_dsa_state = INVALID_PTR; + ctx->blitter.saved_rs_state = INVALID_PTR; + ctx->blitter.saved_fs = INVALID_PTR; + ctx->blitter.saved_vs = INVALID_PTR; + ctx->blitter.saved_fb_state.nr_cbufs = ~0; + ctx->blitter.saved_num_textures = ~0; + ctx->blitter.saved_num_sampler_states = ~0; + + /* blend state objects */ + memset(&blend, 0, sizeof(blend)); + ctx->blend_keep_color = pipe->create_blend_state(pipe, &blend); + + blend.colormask = PIPE_MASK_RGBA; + ctx->blend_write_color = pipe->create_blend_state(pipe, &blend); + + /* depth stencil alpha state objects */ + dsa = &ctx->template_dsa; + ctx->dsa_keep_depth_stencil = + pipe->create_depth_stencil_alpha_state(pipe, dsa); + + dsa->depth.enabled = 1; + dsa->depth.writemask = 1; + dsa->depth.func = PIPE_FUNC_ALWAYS; + ctx->dsa_write_depth_keep_stencil = + pipe->create_depth_stencil_alpha_state(pipe, dsa); + + dsa->stencil[0].enabled = 1; + dsa->stencil[0].func = PIPE_FUNC_ALWAYS; + dsa->stencil[0].fail_op = PIPE_STENCIL_OP_REPLACE; + dsa->stencil[0].zpass_op = PIPE_STENCIL_OP_REPLACE; + dsa->stencil[0].zfail_op = PIPE_STENCIL_OP_REPLACE; + dsa->stencil[0].valuemask = 0xff; + dsa->stencil[0].writemask = 0xff; + /* The DSA state objects which write depth and stencil are created + * on-demand. */ + + /* sampler state */ + sampler_state = &ctx->template_sampler_state; + sampler_state->wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + sampler_state->wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + sampler_state->wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + /* The sampler state objects which sample from a specified mipmap level + * are created on-demand. */ + + /* rasterizer state */ + memset(&rs_state, 0, sizeof(rs_state)); + rs_state.front_winding = PIPE_WINDING_CW; + rs_state.cull_mode = PIPE_WINDING_NONE; + rs_state.bypass_vs_clip_and_viewport = 1; + rs_state.gl_rasterization_rules = 1; + ctx->rs_state = pipe->create_rasterizer_state(pipe, &rs_state); + + /* fragment shaders are created on-demand */ + + /* vertex shaders */ + { + const uint semantic_names[] = { TGSI_SEMANTIC_POSITION, + TGSI_SEMANTIC_COLOR }; + const uint semantic_indices[] = { 0, 0 }; + ctx->vs_col = + util_make_vertex_passthrough_shader(pipe, 2, semantic_names, + semantic_indices); + } + { + const uint semantic_names[] = { TGSI_SEMANTIC_POSITION, + TGSI_SEMANTIC_GENERIC }; + const uint semantic_indices[] = { 0, 0 }; + ctx->vs_tex = + util_make_vertex_passthrough_shader(pipe, 2, semantic_names, + semantic_indices); + } + + /* set invariant vertex coordinates */ + for (i = 0; i < 4; i++) + ctx->vertices[i][0][3] = 1; /*v.w*/ + + /* create the vertex buffer */ + ctx->vbuf = pipe_buffer_create(ctx->pipe->screen, + 32, + PIPE_BUFFER_USAGE_VERTEX, + sizeof(ctx->vertices)); + + return &ctx->blitter; +} + +void util_blitter_destroy(struct blitter_context *blitter) +{ + struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter; + struct pipe_context *pipe = ctx->pipe; + int i; + + pipe->delete_blend_state(pipe, ctx->blend_write_color); + pipe->delete_blend_state(pipe, ctx->blend_keep_color); + pipe->delete_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil); + pipe->delete_depth_stencil_alpha_state(pipe, + ctx->dsa_write_depth_keep_stencil); + + for (i = 0; i < 0xff; i++) + if (ctx->dsa_write_depth_stencil[i]) + pipe->delete_depth_stencil_alpha_state(pipe, + ctx->dsa_write_depth_stencil[i]); + + pipe->delete_rasterizer_state(pipe, ctx->rs_state); + pipe->delete_vs_state(pipe, ctx->vs_col); + pipe->delete_vs_state(pipe, ctx->vs_tex); + + for (i = 0; i < PIPE_MAX_TEXTURE_TYPES; i++) { + if (ctx->fs_texfetch_col[i]) + pipe->delete_fs_state(pipe, ctx->fs_texfetch_col[i]); + if (ctx->fs_texfetch_depth[i]) + pipe->delete_fs_state(pipe, ctx->fs_texfetch_depth[i]); + } + + for (i = 0; i < PIPE_MAX_COLOR_BUFS && ctx->fs_col[i]; i++) + if (ctx->fs_col[i]) + pipe->delete_fs_state(pipe, ctx->fs_col[i]); + + for (i = 0; i < PIPE_MAX_TEXTURE_LEVELS; i++) + if (ctx->sampler_state[i]) + pipe->delete_sampler_state(pipe, ctx->sampler_state[i]); + + pipe_buffer_reference(&ctx->vbuf, NULL); + FREE(ctx); +} + +static void blitter_check_saved_CSOs(struct blitter_context_priv *ctx) +{ + /* make sure these CSOs have been saved */ + assert(ctx->blitter.saved_blend_state != INVALID_PTR && + ctx->blitter.saved_dsa_state != INVALID_PTR && + ctx->blitter.saved_rs_state != INVALID_PTR && + ctx->blitter.saved_fs != INVALID_PTR && + ctx->blitter.saved_vs != INVALID_PTR); +} + +static void blitter_restore_CSOs(struct blitter_context_priv *ctx) +{ + struct pipe_context *pipe = ctx->pipe; + + /* restore the state objects which are always required to be saved */ + pipe->bind_blend_state(pipe, ctx->blitter.saved_blend_state); + pipe->bind_depth_stencil_alpha_state(pipe, ctx->blitter.saved_dsa_state); + pipe->bind_rasterizer_state(pipe, ctx->blitter.saved_rs_state); + pipe->bind_fs_state(pipe, ctx->blitter.saved_fs); + pipe->bind_vs_state(pipe, ctx->blitter.saved_vs); + + ctx->blitter.saved_blend_state = INVALID_PTR; + ctx->blitter.saved_dsa_state = INVALID_PTR; + ctx->blitter.saved_rs_state = INVALID_PTR; + ctx->blitter.saved_fs = INVALID_PTR; + ctx->blitter.saved_vs = INVALID_PTR; + + /* restore the state objects which are required to be saved before copy/fill + */ + if (ctx->blitter.saved_fb_state.nr_cbufs != ~0) { + pipe->set_framebuffer_state(pipe, &ctx->blitter.saved_fb_state); + ctx->blitter.saved_fb_state.nr_cbufs = ~0; + } + + if (ctx->blitter.saved_num_sampler_states != ~0) { + pipe->bind_fragment_sampler_states(pipe, + ctx->blitter.saved_num_sampler_states, + ctx->blitter.saved_sampler_states); + ctx->blitter.saved_num_sampler_states = ~0; + } + + if (ctx->blitter.saved_num_textures != ~0) { + pipe->set_fragment_sampler_textures(pipe, + ctx->blitter.saved_num_textures, + ctx->blitter.saved_textures); + ctx->blitter.saved_num_textures = ~0; + } +} + +static void blitter_set_rectangle(struct blitter_context_priv *ctx, + unsigned x1, unsigned y1, + unsigned x2, unsigned y2, + float depth) +{ + int i; + + /* set vertex positions */ + ctx->vertices[0][0][0] = x1; /*v0.x*/ + ctx->vertices[0][0][1] = y1; /*v0.y*/ + + ctx->vertices[1][0][0] = x2; /*v1.x*/ + ctx->vertices[1][0][1] = y1; /*v1.y*/ + + ctx->vertices[2][0][0] = x2; /*v2.x*/ + ctx->vertices[2][0][1] = y2; /*v2.y*/ + + ctx->vertices[3][0][0] = x1; /*v3.x*/ + ctx->vertices[3][0][1] = y2; /*v3.y*/ + + for (i = 0; i < 4; i++) + ctx->vertices[i][0][2] = depth; /*z*/ +} + +static void blitter_set_clear_color(struct blitter_context_priv *ctx, + const float *rgba) +{ + int i; + + for (i = 0; i < 4; i++) { + ctx->vertices[i][1][0] = rgba[0]; + ctx->vertices[i][1][1] = rgba[1]; + ctx->vertices[i][1][2] = rgba[2]; + ctx->vertices[i][1][3] = rgba[3]; + } +} + +static void blitter_set_texcoords_2d(struct blitter_context_priv *ctx, + struct pipe_surface *surf, + unsigned x1, unsigned y1, + unsigned x2, unsigned y2) +{ + int i; + float s1 = x1 / (float)surf->width; + float t1 = y1 / (float)surf->height; + float s2 = x2 / (float)surf->width; + float t2 = y2 / (float)surf->height; + + ctx->vertices[0][1][0] = s1; /*t0.s*/ + ctx->vertices[0][1][1] = t1; /*t0.t*/ + + ctx->vertices[1][1][0] = s2; /*t1.s*/ + ctx->vertices[1][1][1] = t1; /*t1.t*/ + + ctx->vertices[2][1][0] = s2; /*t2.s*/ + ctx->vertices[2][1][1] = t2; /*t2.t*/ + + ctx->vertices[3][1][0] = s1; /*t3.s*/ + ctx->vertices[3][1][1] = t2; /*t3.t*/ + + for (i = 0; i < 4; i++) { + ctx->vertices[i][1][2] = 0; /*r*/ + ctx->vertices[i][1][3] = 1; /*q*/ + } +} + +static void blitter_set_texcoords_3d(struct blitter_context_priv *ctx, + struct pipe_surface *surf, + unsigned x1, unsigned y1, + unsigned x2, unsigned y2) +{ + int i; + float depth = u_minify(surf->texture->depth0, surf->level); + float r = surf->zslice / depth; + + blitter_set_texcoords_2d(ctx, surf, x1, y1, x2, y2); + + for (i = 0; i < 4; i++) + ctx->vertices[i][1][2] = r; /*r*/ +} + +static void blitter_set_texcoords_cube(struct blitter_context_priv *ctx, + struct pipe_surface *surf, + unsigned x1, unsigned y1, + unsigned x2, unsigned y2) +{ + int i; + float s1 = x1 / (float)surf->width; + float t1 = y1 / (float)surf->height; + float s2 = x2 / (float)surf->width; + float t2 = y2 / (float)surf->height; + const float st[4][2] = { + {s1, t1}, {s2, t1}, {s2, t2}, {s1, t2} + }; + + util_map_texcoords2d_onto_cubemap(surf->face, + /* pointer, stride in floats */ + &st[0][0], 2, + &ctx->vertices[0][1][0], 8); + + for (i = 0; i < 4; i++) + ctx->vertices[i][1][3] = 1; /*q*/ +} + +static void blitter_draw_quad(struct blitter_context_priv *ctx) +{ + struct pipe_context *pipe = ctx->pipe; + + /* write vertices and draw them */ + pipe_buffer_write(pipe->screen, ctx->vbuf, + 0, sizeof(ctx->vertices), ctx->vertices); + + util_draw_vertex_buffer(pipe, ctx->vbuf, 0, PIPE_PRIM_TRIANGLE_FAN, + 4, /* verts */ + 2); /* attribs/vert */ +} + +static INLINE +void *blitter_get_state_write_depth_stencil( + struct blitter_context_priv *ctx, + unsigned stencil) +{ + struct pipe_context *pipe = ctx->pipe; + + stencil &= 0xff; + + /* Create the DSA state on-demand. */ + if (!ctx->dsa_write_depth_stencil[stencil]) { + ctx->template_dsa.stencil[0].ref_value = stencil; + + ctx->dsa_write_depth_stencil[stencil] = + pipe->create_depth_stencil_alpha_state(pipe, &ctx->template_dsa); + } + + return ctx->dsa_write_depth_stencil[stencil]; +} + +static INLINE +void **blitter_get_sampler_state(struct blitter_context_priv *ctx, + int miplevel) +{ + struct pipe_context *pipe = ctx->pipe; + struct pipe_sampler_state *sampler_state = &ctx->template_sampler_state; + + assert(miplevel < PIPE_MAX_TEXTURE_LEVELS); + + /* Create the sampler state on-demand. */ + if (!ctx->sampler_state[miplevel]) { + sampler_state->lod_bias = miplevel; + sampler_state->min_lod = miplevel; + sampler_state->max_lod = miplevel; + + ctx->sampler_state[miplevel] = pipe->create_sampler_state(pipe, + sampler_state); + } + + /* Return void** so that it can be passed to bind_fragment_sampler_states + * directly. */ + return &ctx->sampler_state[miplevel]; +} + +static INLINE +void *blitter_get_fs_col(struct blitter_context_priv *ctx, unsigned num_cbufs) +{ + struct pipe_context *pipe = ctx->pipe; + unsigned index = num_cbufs ? num_cbufs - 1 : 0; + + assert(num_cbufs <= PIPE_MAX_COLOR_BUFS); + + if (!ctx->fs_col[index]) + ctx->fs_col[index] = + util_make_fragment_clonecolor_shader(pipe, num_cbufs); + + return ctx->fs_col[index]; +} + +static INLINE +void *blitter_get_fs_texfetch_col(struct blitter_context_priv *ctx, + unsigned tex_target) +{ + struct pipe_context *pipe = ctx->pipe; + + assert(tex_target < PIPE_MAX_TEXTURE_TYPES); + + /* Create the fragment shader on-demand. */ + if (!ctx->fs_texfetch_col[tex_target]) { + switch (tex_target) { + case PIPE_TEXTURE_1D: + ctx->fs_texfetch_col[PIPE_TEXTURE_1D] = + util_make_fragment_tex_shader(pipe, TGSI_TEXTURE_1D); + break; + case PIPE_TEXTURE_2D: + ctx->fs_texfetch_col[PIPE_TEXTURE_2D] = + util_make_fragment_tex_shader(pipe, TGSI_TEXTURE_2D); + break; + case PIPE_TEXTURE_3D: + ctx->fs_texfetch_col[PIPE_TEXTURE_3D] = + util_make_fragment_tex_shader(pipe, TGSI_TEXTURE_3D); + break; + case PIPE_TEXTURE_CUBE: + ctx->fs_texfetch_col[PIPE_TEXTURE_CUBE] = + util_make_fragment_tex_shader(pipe, TGSI_TEXTURE_CUBE); + break; + default:; + } + } + + return ctx->fs_texfetch_col[tex_target]; +} + +static INLINE +void *blitter_get_fs_texfetch_depth(struct blitter_context_priv *ctx, + unsigned tex_target) +{ + struct pipe_context *pipe = ctx->pipe; + + assert(tex_target < PIPE_MAX_TEXTURE_TYPES); + + /* Create the fragment shader on-demand. */ + if (!ctx->fs_texfetch_depth[tex_target]) { + switch (tex_target) { + case PIPE_TEXTURE_1D: + ctx->fs_texfetch_depth[PIPE_TEXTURE_1D] = + util_make_fragment_tex_shader_writedepth(pipe, TGSI_TEXTURE_1D); + break; + case PIPE_TEXTURE_2D: + ctx->fs_texfetch_depth[PIPE_TEXTURE_2D] = + util_make_fragment_tex_shader_writedepth(pipe, TGSI_TEXTURE_2D); + break; + case PIPE_TEXTURE_3D: + ctx->fs_texfetch_depth[PIPE_TEXTURE_3D] = + util_make_fragment_tex_shader_writedepth(pipe, TGSI_TEXTURE_3D); + break; + case PIPE_TEXTURE_CUBE: + ctx->fs_texfetch_depth[PIPE_TEXTURE_CUBE] = + util_make_fragment_tex_shader_writedepth(pipe,TGSI_TEXTURE_CUBE); + break; + default:; + } + } + + return ctx->fs_texfetch_depth[tex_target]; +} + +void util_blitter_clear(struct blitter_context *blitter, + unsigned width, unsigned height, + unsigned num_cbufs, + unsigned clear_buffers, + const float *rgba, + double depth, unsigned stencil) +{ + struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter; + struct pipe_context *pipe = ctx->pipe; + + assert(num_cbufs <= PIPE_MAX_COLOR_BUFS); + + blitter_check_saved_CSOs(ctx); + + /* bind CSOs */ + if (clear_buffers & PIPE_CLEAR_COLOR) + pipe->bind_blend_state(pipe, ctx->blend_write_color); + else + pipe->bind_blend_state(pipe, ctx->blend_keep_color); + + if (clear_buffers & PIPE_CLEAR_DEPTHSTENCIL) + pipe->bind_depth_stencil_alpha_state(pipe, + blitter_get_state_write_depth_stencil(ctx, stencil)); + else + pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil); + + pipe->bind_rasterizer_state(pipe, ctx->rs_state); + pipe->bind_fs_state(pipe, blitter_get_fs_col(ctx, num_cbufs)); + pipe->bind_vs_state(pipe, ctx->vs_col); + + blitter_set_clear_color(ctx, rgba); + blitter_set_rectangle(ctx, 0, 0, width, height, depth); + blitter_draw_quad(ctx); + blitter_restore_CSOs(ctx); +} + +void util_blitter_copy(struct blitter_context *blitter, + struct pipe_surface *dst, + unsigned dstx, unsigned dsty, + struct pipe_surface *src, + unsigned srcx, unsigned srcy, + unsigned width, unsigned height, + boolean ignore_stencil) +{ + struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter; + struct pipe_context *pipe = ctx->pipe; + struct pipe_screen *screen = pipe->screen; + struct pipe_framebuffer_state fb_state; + boolean is_stencil, is_depth; + unsigned dst_tex_usage; + + /* give up if textures are not set */ + assert(dst->texture && src->texture); + if (!dst->texture || !src->texture) + return; + + is_depth = util_format_get_component_bits(src->format, UTIL_FORMAT_COLORSPACE_ZS, 0) != 0; + is_stencil = util_format_get_component_bits(src->format, UTIL_FORMAT_COLORSPACE_ZS, 1) != 0; + dst_tex_usage = is_depth || is_stencil ? PIPE_TEXTURE_USAGE_DEPTH_STENCIL : + PIPE_TEXTURE_USAGE_RENDER_TARGET; + + /* check if we can sample from and render to the surfaces */ + /* (assuming copying a stencil buffer is not possible) */ + if ((!ignore_stencil && is_stencil) || + !screen->is_format_supported(screen, dst->format, dst->texture->target, + dst_tex_usage, 0) || + !screen->is_format_supported(screen, src->format, src->texture->target, + PIPE_TEXTURE_USAGE_SAMPLER, 0)) { + util_surface_copy(pipe, FALSE, dst, dstx, dsty, src, srcx, srcy, + width, height); + return; + } + + /* check whether the states are properly saved */ + blitter_check_saved_CSOs(ctx); + assert(blitter->saved_fb_state.nr_cbufs != ~0); + assert(blitter->saved_num_textures != ~0); + assert(blitter->saved_num_sampler_states != ~0); + assert(src->texture->target < PIPE_MAX_TEXTURE_TYPES); + + /* bind CSOs */ + fb_state.width = dst->width; + fb_state.height = dst->height; + + if (is_depth) { + pipe->bind_blend_state(pipe, ctx->blend_keep_color); + pipe->bind_depth_stencil_alpha_state(pipe, + ctx->dsa_write_depth_keep_stencil); + pipe->bind_fs_state(pipe, + blitter_get_fs_texfetch_depth(ctx, src->texture->target)); + + fb_state.nr_cbufs = 0; + fb_state.zsbuf = dst; + } else { + pipe->bind_blend_state(pipe, ctx->blend_write_color); + pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil); + pipe->bind_fs_state(pipe, + blitter_get_fs_texfetch_col(ctx, src->texture->target)); + + fb_state.nr_cbufs = 1; + fb_state.cbufs[0] = dst; + fb_state.zsbuf = 0; + } + + pipe->bind_rasterizer_state(pipe, ctx->rs_state); + pipe->bind_vs_state(pipe, ctx->vs_tex); + pipe->bind_fragment_sampler_states(pipe, 1, + blitter_get_sampler_state(ctx, src->level)); + pipe->set_fragment_sampler_textures(pipe, 1, &src->texture); + pipe->set_framebuffer_state(pipe, &fb_state); + + /* set texture coordinates */ + switch (src->texture->target) { + case PIPE_TEXTURE_1D: + case PIPE_TEXTURE_2D: + blitter_set_texcoords_2d(ctx, src, srcx, srcy, + srcx+width, srcy+height); + break; + case PIPE_TEXTURE_3D: + blitter_set_texcoords_3d(ctx, src, srcx, srcy, + srcx+width, srcy+height); + break; + case PIPE_TEXTURE_CUBE: + blitter_set_texcoords_cube(ctx, src, srcx, srcy, + srcx+width, srcy+height); + break; + default: + assert(0); + } + + blitter_set_rectangle(ctx, dstx, dsty, dstx+width, dsty+height, 0); + blitter_draw_quad(ctx); + blitter_restore_CSOs(ctx); +} + +void util_blitter_fill(struct blitter_context *blitter, + struct pipe_surface *dst, + unsigned dstx, unsigned dsty, + unsigned width, unsigned height, + unsigned value) +{ + struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter; + struct pipe_context *pipe = ctx->pipe; + struct pipe_screen *screen = pipe->screen; + struct pipe_framebuffer_state fb_state; + float rgba[4]; + ubyte ub_rgba[4] = {0}; + union util_color color; + int i; + + assert(dst->texture); + if (!dst->texture) + return; + + /* check if we can render to the surface */ + if (util_format_is_depth_or_stencil(dst->format) || /* unlikely, but you never know */ + !screen->is_format_supported(screen, dst->format, dst->texture->target, + PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) { + util_surface_fill(pipe, dst, dstx, dsty, width, height, value); + return; + } + + /* unpack the color */ + color.ui = value; + util_unpack_color_ub(dst->format, &color, + ub_rgba, ub_rgba+1, ub_rgba+2, ub_rgba+3); + for (i = 0; i < 4; i++) + rgba[i] = ubyte_to_float(ub_rgba[i]); + + /* check the saved state */ + blitter_check_saved_CSOs(ctx); + assert(blitter->saved_fb_state.nr_cbufs != ~0); + + /* bind CSOs */ + pipe->bind_blend_state(pipe, ctx->blend_write_color); + pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_keep_depth_stencil); + pipe->bind_rasterizer_state(pipe, ctx->rs_state); + pipe->bind_fs_state(pipe, blitter_get_fs_col(ctx, 1)); + pipe->bind_vs_state(pipe, ctx->vs_col); + + /* set a framebuffer state */ + fb_state.width = dst->width; + fb_state.height = dst->height; + fb_state.nr_cbufs = 1; + fb_state.cbufs[0] = dst; + fb_state.zsbuf = 0; + pipe->set_framebuffer_state(pipe, &fb_state); + + blitter_set_clear_color(ctx, rgba); + blitter_set_rectangle(ctx, 0, 0, width, height, 0); + blitter_draw_quad(ctx); + blitter_restore_CSOs(ctx); +} |