| /************************************************************************** |
| * |
| * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. |
| * All Rights Reserved. |
| * |
| * 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 |
| * Copy/blit pixel rect between surfaces |
| * |
| * @author Brian Paul |
| */ |
| |
| |
| #include "pipe/p_context.h" |
| #include "util/u_debug.h" |
| #include "pipe/p_defines.h" |
| #include "util/u_inlines.h" |
| #include "pipe/p_shader_tokens.h" |
| #include "pipe/p_state.h" |
| |
| #include "util/u_blit.h" |
| #include "util/u_draw_quad.h" |
| #include "util/u_format.h" |
| #include "util/u_math.h" |
| #include "util/u_memory.h" |
| #include "util/u_sampler.h" |
| #include "util/u_simple_shaders.h" |
| |
| #include "cso_cache/cso_context.h" |
| |
| |
| struct blit_state |
| { |
| struct pipe_context *pipe; |
| struct cso_context *cso; |
| |
| struct pipe_blend_state blend; |
| struct pipe_depth_stencil_alpha_state depthstencil_keep; |
| struct pipe_depth_stencil_alpha_state depthstencil_write; |
| struct pipe_rasterizer_state rasterizer; |
| struct pipe_sampler_state sampler; |
| struct pipe_viewport_state viewport; |
| struct pipe_vertex_element velem[2]; |
| enum pipe_texture_target internal_target; |
| |
| void *vs; |
| void *fs[TGSI_WRITEMASK_XYZW + 1]; |
| void *fs_depth; |
| |
| struct pipe_resource *vbuf; /**< quad vertices */ |
| unsigned vbuf_slot; |
| |
| float vertices[4][2][4]; /**< vertex/texcoords for quad */ |
| }; |
| |
| |
| /** |
| * Create state object for blit. |
| * Intended to be created once and re-used for many blit() calls. |
| */ |
| struct blit_state * |
| util_create_blit(struct pipe_context *pipe, struct cso_context *cso) |
| { |
| struct blit_state *ctx; |
| uint i; |
| |
| ctx = CALLOC_STRUCT(blit_state); |
| if (!ctx) |
| return NULL; |
| |
| ctx->pipe = pipe; |
| ctx->cso = cso; |
| |
| /* disabled blending/masking */ |
| memset(&ctx->blend, 0, sizeof(ctx->blend)); |
| ctx->blend.rt[0].colormask = PIPE_MASK_RGBA; |
| |
| /* no-op depth/stencil/alpha */ |
| memset(&ctx->depthstencil_keep, 0, sizeof(ctx->depthstencil_keep)); |
| memset(&ctx->depthstencil_write, 0, sizeof(ctx->depthstencil_write)); |
| ctx->depthstencil_write.depth.enabled = 1; |
| ctx->depthstencil_write.depth.writemask = 1; |
| ctx->depthstencil_write.depth.func = PIPE_FUNC_ALWAYS; |
| |
| /* rasterizer */ |
| memset(&ctx->rasterizer, 0, sizeof(ctx->rasterizer)); |
| ctx->rasterizer.cull_face = PIPE_FACE_NONE; |
| ctx->rasterizer.gl_rasterization_rules = 1; |
| ctx->rasterizer.depth_clip = 1; |
| |
| /* samplers */ |
| memset(&ctx->sampler, 0, sizeof(ctx->sampler)); |
| ctx->sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE; |
| ctx->sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE; |
| ctx->sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE; |
| ctx->sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; |
| ctx->sampler.min_img_filter = 0; /* set later */ |
| ctx->sampler.mag_img_filter = 0; /* set later */ |
| |
| /* vertex elements state */ |
| memset(&ctx->velem[0], 0, sizeof(ctx->velem[0]) * 2); |
| for (i = 0; i < 2; i++) { |
| ctx->velem[i].src_offset = i * 4 * sizeof(float); |
| ctx->velem[i].instance_divisor = 0; |
| ctx->velem[i].vertex_buffer_index = 0; |
| ctx->velem[i].src_format = PIPE_FORMAT_R32G32B32A32_FLOAT; |
| } |
| |
| ctx->vbuf = NULL; |
| |
| /* init vertex data that doesn't change */ |
| for (i = 0; i < 4; i++) { |
| ctx->vertices[i][0][3] = 1.0f; /* w */ |
| ctx->vertices[i][1][2] = 0.0f; /* r */ |
| ctx->vertices[i][1][3] = 1.0f; /* q */ |
| } |
| |
| if(pipe->screen->get_param(pipe->screen, PIPE_CAP_NPOT_TEXTURES)) |
| ctx->internal_target = PIPE_TEXTURE_2D; |
| else |
| ctx->internal_target = PIPE_TEXTURE_RECT; |
| |
| return ctx; |
| } |
| |
| |
| /** |
| * Destroy a blit context |
| */ |
| void |
| util_destroy_blit(struct blit_state *ctx) |
| { |
| struct pipe_context *pipe = ctx->pipe; |
| unsigned i; |
| |
| if (ctx->vs) |
| pipe->delete_vs_state(pipe, ctx->vs); |
| |
| for (i = 0; i < Elements(ctx->fs); i++) |
| if (ctx->fs[i]) |
| pipe->delete_fs_state(pipe, ctx->fs[i]); |
| |
| if (ctx->fs_depth) |
| pipe->delete_fs_state(pipe, ctx->fs_depth); |
| |
| pipe_resource_reference(&ctx->vbuf, NULL); |
| |
| FREE(ctx); |
| } |
| |
| |
| /** |
| * Helper function to set the fragment shaders. |
| */ |
| static INLINE void |
| set_fragment_shader(struct blit_state *ctx, uint writemask) |
| { |
| if (!ctx->fs[writemask]) |
| ctx->fs[writemask] = |
| util_make_fragment_tex_shader_writemask(ctx->pipe, TGSI_TEXTURE_2D, |
| TGSI_INTERPOLATE_LINEAR, |
| writemask); |
| |
| cso_set_fragment_shader_handle(ctx->cso, ctx->fs[writemask]); |
| } |
| |
| |
| /** |
| * Helper function to set the depthwrite shader. |
| */ |
| static INLINE void |
| set_depth_fragment_shader(struct blit_state *ctx) |
| { |
| if (!ctx->fs_depth) |
| ctx->fs_depth = |
| util_make_fragment_tex_shader_writedepth(ctx->pipe, TGSI_TEXTURE_2D, |
| TGSI_INTERPOLATE_LINEAR); |
| |
| cso_set_fragment_shader_handle(ctx->cso, ctx->fs_depth); |
| } |
| |
| |
| /** |
| * Helper function to set the vertex shader. |
| */ |
| static INLINE void |
| set_vertex_shader(struct blit_state *ctx) |
| { |
| /* vertex shader - still required to provide the linkage between |
| * fragment shader input semantics and vertex_element/buffers. |
| */ |
| if (!ctx->vs) { |
| const uint semantic_names[] = { TGSI_SEMANTIC_POSITION, |
| TGSI_SEMANTIC_GENERIC }; |
| const uint semantic_indexes[] = { 0, 0 }; |
| ctx->vs = util_make_vertex_passthrough_shader(ctx->pipe, 2, |
| semantic_names, |
| semantic_indexes); |
| } |
| |
| cso_set_vertex_shader_handle(ctx->cso, ctx->vs); |
| } |
| |
| |
| /** |
| * Get offset of next free slot in vertex buffer for quad vertices. |
| */ |
| static unsigned |
| get_next_slot( struct blit_state *ctx ) |
| { |
| const unsigned max_slots = 4096 / sizeof ctx->vertices; |
| |
| if (ctx->vbuf_slot >= max_slots) |
| util_blit_flush( ctx ); |
| |
| if (!ctx->vbuf) { |
| ctx->vbuf = pipe_buffer_create(ctx->pipe->screen, |
| PIPE_BIND_VERTEX_BUFFER, |
| PIPE_USAGE_STREAM, |
| max_slots * sizeof ctx->vertices); |
| } |
| |
| return ctx->vbuf_slot++ * sizeof ctx->vertices; |
| } |
| |
| |
| |
| |
| /** |
| * Setup vertex data for the textured quad we'll draw. |
| * Note: y=0=top |
| */ |
| static unsigned |
| setup_vertex_data_tex(struct blit_state *ctx, |
| float x0, float y0, float x1, float y1, |
| float s0, float t0, float s1, float t1, |
| float z) |
| { |
| unsigned offset; |
| |
| ctx->vertices[0][0][0] = x0; |
| ctx->vertices[0][0][1] = y0; |
| ctx->vertices[0][0][2] = z; |
| ctx->vertices[0][1][0] = s0; /*s*/ |
| ctx->vertices[0][1][1] = t0; /*t*/ |
| |
| ctx->vertices[1][0][0] = x1; |
| ctx->vertices[1][0][1] = y0; |
| ctx->vertices[1][0][2] = z; |
| ctx->vertices[1][1][0] = s1; /*s*/ |
| ctx->vertices[1][1][1] = t0; /*t*/ |
| |
| ctx->vertices[2][0][0] = x1; |
| ctx->vertices[2][0][1] = y1; |
| ctx->vertices[2][0][2] = z; |
| ctx->vertices[2][1][0] = s1; |
| ctx->vertices[2][1][1] = t1; |
| |
| ctx->vertices[3][0][0] = x0; |
| ctx->vertices[3][0][1] = y1; |
| ctx->vertices[3][0][2] = z; |
| ctx->vertices[3][1][0] = s0; |
| ctx->vertices[3][1][1] = t1; |
| |
| offset = get_next_slot( ctx ); |
| |
| if (ctx->vbuf) { |
| pipe_buffer_write_nooverlap(ctx->pipe, ctx->vbuf, |
| offset, sizeof(ctx->vertices), ctx->vertices); |
| } |
| |
| return offset; |
| } |
| |
| |
| /** |
| * \return TRUE if two regions overlap, FALSE otherwise |
| */ |
| static boolean |
| regions_overlap(int srcX0, int srcY0, |
| int srcX1, int srcY1, |
| int dstX0, int dstY0, |
| int dstX1, int dstY1) |
| { |
| if (MAX2(srcX0, srcX1) < MIN2(dstX0, dstX1)) |
| return FALSE; /* src completely left of dst */ |
| |
| if (MAX2(dstX0, dstX1) < MIN2(srcX0, srcX1)) |
| return FALSE; /* dst completely left of src */ |
| |
| if (MAX2(srcY0, srcY1) < MIN2(dstY0, dstY1)) |
| return FALSE; /* src completely above dst */ |
| |
| if (MAX2(dstY0, dstY1) < MIN2(srcY0, srcY1)) |
| return FALSE; /* dst completely above src */ |
| |
| return TRUE; /* some overlap */ |
| } |
| |
| |
| /** |
| * Can we blit from src format to dest format with a simple copy? |
| */ |
| static boolean |
| formats_compatible(enum pipe_format src_format, |
| enum pipe_format dst_format) |
| { |
| if (src_format == dst_format) { |
| return TRUE; |
| } |
| else { |
| const struct util_format_description *src_desc = |
| util_format_description(src_format); |
| const struct util_format_description *dst_desc = |
| util_format_description(dst_format); |
| return util_is_format_compatible(src_desc, dst_desc); |
| } |
| } |
| |
| |
| /** |
| * Copy pixel block from src surface to dst surface. |
| * Overlapping regions are acceptable. |
| * Flipping and stretching are supported. |
| * \param filter one of PIPE_TEX_MIPFILTER_NEAREST/LINEAR |
| * \param writemask controls which channels in the dest surface are sourced |
| * from the src surface. Disabled channels are sourced |
| * from (0,0,0,1). |
| * XXX need some control over blitting stencil. |
| */ |
| void |
| util_blit_pixels_writemask(struct blit_state *ctx, |
| struct pipe_resource *src_tex, |
| unsigned src_level, |
| int srcX0, int srcY0, |
| int srcX1, int srcY1, |
| int srcZ0, |
| 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; |
| enum pipe_format src_format, dst_format; |
| struct pipe_sampler_view *sampler_view = NULL; |
| struct pipe_sampler_view sv_templ; |
| struct pipe_surface *dst_surface; |
| struct pipe_framebuffer_state fb; |
| const int srcW = abs(srcX1 - srcX0); |
| const int srcH = abs(srcY1 - srcY0); |
| unsigned offset; |
| boolean overlap, dst_is_depth; |
| float s0, t0, s1, t1; |
| boolean normalized; |
| |
| assert(filter == PIPE_TEX_MIPFILTER_NEAREST || |
| filter == PIPE_TEX_MIPFILTER_LINEAR); |
| |
| assert(src_level <= src_tex->last_level); |
| |
| /* do the regions overlap? */ |
| overlap = src_tex == dst->texture && |
| dst->u.tex.level == src_level && |
| dst->u.tex.first_layer == srcZ0 && |
| regions_overlap(srcX0, srcY0, srcX1, srcY1, |
| dstX0, dstY0, dstX1, dstY1); |
| |
| src_format = util_format_linear(src_tex->format); |
| dst_format = util_format_linear(dst->format); |
| |
| /* |
| * Check for simple case: no format conversion, no flipping, no stretching, |
| * no overlapping. |
| * Filter mode should not matter since there's no stretching. |
| */ |
| if (formats_compatible(src_format, dst_format) && |
| srcX0 < srcX1 && |
| dstX0 < dstX1 && |
| srcY0 < srcY1 && |
| dstY0 < dstY1 && |
| (dstX1 - dstX0) == (srcX1 - srcX0) && |
| (dstY1 - dstY0) == (srcY1 - srcY0) && |
| !overlap) { |
| struct pipe_box src_box; |
| src_box.x = srcX0; |
| src_box.y = srcY0; |
| src_box.z = srcZ0; |
| src_box.width = srcW; |
| src_box.height = srcH; |
| src_box.depth = 1; |
| pipe->resource_copy_region(pipe, |
| dst->texture, dst->u.tex.level, |
| dstX0, dstY0, dst->u.tex.first_layer,/* dest */ |
| src_tex, src_level, |
| &src_box); |
| return; |
| } |
| |
| if (dst_format == dst->format) { |
| dst_surface = dst; |
| } else { |
| struct pipe_surface templ = *dst; |
| templ.format = dst_format; |
| dst_surface = pipe->create_surface(pipe, dst->texture, &templ); |
| } |
| |
| /* Create a temporary texture when src and dest alias or when src |
| * is anything other than a 2d texture. |
| * XXX should just use appropriate shader to access 1d / 3d slice / cube face, |
| * much like the u_blitter code does (should be pretty trivial). |
| * |
| * This can still be improved upon. |
| */ |
| if ((src_tex == dst_surface->texture && |
| dst_surface->u.tex.level == src_level && |
| dst_surface->u.tex.first_layer == srcZ0) || |
| (src_tex->target != PIPE_TEXTURE_2D && |
| src_tex->target != PIPE_TEXTURE_2D && |
| src_tex->target != PIPE_TEXTURE_RECT)) |
| { |
| struct pipe_resource texTemp; |
| struct pipe_resource *tex; |
| struct pipe_sampler_view sv_templ; |
| struct pipe_box src_box; |
| const int srcLeft = MIN2(srcX0, srcX1); |
| const int srcTop = MIN2(srcY0, srcY1); |
| |
| if (srcLeft != srcX0) { |
| /* left-right flip */ |
| int tmp = dstX0; |
| dstX0 = dstX1; |
| dstX1 = tmp; |
| } |
| |
| if (srcTop != srcY0) { |
| /* up-down flip */ |
| int tmp = dstY0; |
| dstY0 = dstY1; |
| dstY1 = tmp; |
| } |
| |
| /* create temp texture */ |
| memset(&texTemp, 0, sizeof(texTemp)); |
| texTemp.target = ctx->internal_target; |
| texTemp.format = src_format; |
| texTemp.last_level = 0; |
| texTemp.width0 = srcW; |
| texTemp.height0 = srcH; |
| texTemp.depth0 = 1; |
| texTemp.array_size = 1; |
| texTemp.bind = PIPE_BIND_SAMPLER_VIEW; |
| |
| tex = screen->resource_create(screen, &texTemp); |
| if (!tex) |
| return; |
| |
| src_box.x = srcLeft; |
| src_box.y = srcTop; |
| src_box.z = srcZ0; |
| src_box.width = srcW; |
| src_box.height = srcH; |
| src_box.depth = 1; |
| /* load temp texture */ |
| pipe->resource_copy_region(pipe, |
| tex, 0, 0, 0, 0, /* dest */ |
| src_tex, src_level, &src_box); |
| |
| normalized = tex->target != PIPE_TEXTURE_RECT; |
| if(normalized) { |
| s0 = 0.0f; |
| s1 = 1.0f; |
| t0 = 0.0f; |
| t1 = 1.0f; |
| } |
| else { |
| s0 = 0; |
| s1 = srcW; |
| t0 = 0; |
| t1 = srcH; |
| } |
| |
| u_sampler_view_default_template(&sv_templ, tex, tex->format); |
| sampler_view = pipe->create_sampler_view(pipe, tex, &sv_templ); |
| |
| if (!sampler_view) { |
| pipe_resource_reference(&tex, NULL); |
| return; |
| } |
| pipe_resource_reference(&tex, NULL); |
| } |
| else { |
| u_sampler_view_default_template(&sv_templ, src_tex, src_format); |
| sampler_view = pipe->create_sampler_view(pipe, src_tex, &sv_templ); |
| |
| if (!sampler_view) { |
| return; |
| } |
| |
| s0 = srcX0; |
| s1 = srcX1; |
| t0 = srcY0; |
| t1 = srcY1; |
| normalized = sampler_view->texture->target != PIPE_TEXTURE_RECT; |
| if(normalized) |
| { |
| s0 /= (float)(u_minify(sampler_view->texture->width0, src_level)); |
| s1 /= (float)(u_minify(sampler_view->texture->width0, src_level)); |
| t0 /= (float)(u_minify(sampler_view->texture->height0, src_level)); |
| t1 /= (float)(u_minify(sampler_view->texture->height0, src_level)); |
| } |
| } |
| |
| dst_is_depth = util_format_is_depth_or_stencil(dst_format); |
| |
| assert(screen->is_format_supported(screen, sampler_view->format, ctx->internal_target, |
| sampler_view->texture->nr_samples, |
| PIPE_BIND_SAMPLER_VIEW)); |
| assert(screen->is_format_supported(screen, dst_format, ctx->internal_target, |
| dst_surface->texture->nr_samples, |
| dst_is_depth ? PIPE_BIND_DEPTH_STENCIL : |
| PIPE_BIND_RENDER_TARGET)); |
| /* save state (restored below) */ |
| cso_save_blend(ctx->cso); |
| cso_save_depth_stencil_alpha(ctx->cso); |
| cso_save_rasterizer(ctx->cso); |
| cso_save_samplers(ctx->cso); |
| cso_save_fragment_sampler_views(ctx->cso); |
| cso_save_stream_outputs(ctx->cso); |
| cso_save_viewport(ctx->cso); |
| cso_save_framebuffer(ctx->cso); |
| cso_save_fragment_shader(ctx->cso); |
| cso_save_vertex_shader(ctx->cso); |
| cso_save_geometry_shader(ctx->cso); |
| cso_save_vertex_elements(ctx->cso); |
| cso_save_vertex_buffers(ctx->cso); |
| |
| /* set misc state we care about */ |
| cso_set_blend(ctx->cso, &ctx->blend); |
| cso_set_depth_stencil_alpha(ctx->cso, |
| dst_is_depth ? &ctx->depthstencil_write : |
| &ctx->depthstencil_keep); |
| cso_set_rasterizer(ctx->cso, &ctx->rasterizer); |
| cso_set_vertex_elements(ctx->cso, 2, ctx->velem); |
| cso_set_stream_outputs(ctx->cso, 0, NULL, 0); |
| |
| /* sampler */ |
| ctx->sampler.normalized_coords = normalized; |
| ctx->sampler.min_img_filter = filter; |
| ctx->sampler.mag_img_filter = filter; |
| ctx->sampler.min_lod = src_level; |
| ctx->sampler.max_lod = src_level; |
| cso_single_sampler(ctx->cso, 0, &ctx->sampler); |
| cso_single_sampler_done(ctx->cso); |
| |
| /* viewport */ |
| ctx->viewport.scale[0] = 0.5f * dst_surface->width; |
| ctx->viewport.scale[1] = 0.5f * dst_surface->height; |
| ctx->viewport.scale[2] = 0.5f; |
| ctx->viewport.scale[3] = 1.0f; |
| ctx->viewport.translate[0] = 0.5f * dst_surface->width; |
| ctx->viewport.translate[1] = 0.5f * dst_surface->height; |
| ctx->viewport.translate[2] = 0.5f; |
| ctx->viewport.translate[3] = 0.0f; |
| cso_set_viewport(ctx->cso, &ctx->viewport); |
| |
| /* texture */ |
| cso_set_fragment_sampler_views(ctx->cso, 1, &sampler_view); |
| |
| /* shaders */ |
| if (dst_is_depth) { |
| set_depth_fragment_shader(ctx); |
| } else { |
| set_fragment_shader(ctx, writemask); |
| } |
| set_vertex_shader(ctx); |
| cso_set_geometry_shader_handle(ctx->cso, NULL); |
| |
| /* drawing dest */ |
| memset(&fb, 0, sizeof(fb)); |
| fb.width = dst_surface->width; |
| fb.height = dst_surface->height; |
| if (dst_is_depth) { |
| fb.zsbuf = dst_surface; |
| } else { |
| fb.nr_cbufs = 1; |
| fb.cbufs[0] = dst_surface; |
| } |
| cso_set_framebuffer(ctx->cso, &fb); |
| |
| /* draw quad */ |
| offset = setup_vertex_data_tex(ctx, |
| (float) dstX0 / dst_surface->width * 2.0f - 1.0f, |
| (float) dstY0 / dst_surface->height * 2.0f - 1.0f, |
| (float) dstX1 / dst_surface->width * 2.0f - 1.0f, |
| (float) dstY1 / dst_surface->height * 2.0f - 1.0f, |
| s0, t0, |
| s1, t1, |
| z); |
| |
| if (ctx->vbuf) { |
| util_draw_vertex_buffer(ctx->pipe, ctx->cso, ctx->vbuf, offset, |
| PIPE_PRIM_TRIANGLE_FAN, |
| 4, /* verts */ |
| 2); /* attribs/vert */ |
| } |
| |
| /* restore state we changed */ |
| cso_restore_blend(ctx->cso); |
| cso_restore_depth_stencil_alpha(ctx->cso); |
| cso_restore_rasterizer(ctx->cso); |
| cso_restore_samplers(ctx->cso); |
| cso_restore_fragment_sampler_views(ctx->cso); |
| cso_restore_viewport(ctx->cso); |
| cso_restore_framebuffer(ctx->cso); |
| cso_restore_fragment_shader(ctx->cso); |
| cso_restore_vertex_shader(ctx->cso); |
| cso_restore_geometry_shader(ctx->cso); |
| cso_restore_vertex_elements(ctx->cso); |
| cso_restore_vertex_buffers(ctx->cso); |
| cso_restore_stream_outputs(ctx->cso); |
| |
| pipe_sampler_view_reference(&sampler_view, NULL); |
| if (dst_surface != dst) |
| pipe_surface_reference(&dst_surface, NULL); |
| } |
| |
| |
| void |
| util_blit_pixels(struct blit_state *ctx, |
| struct pipe_resource *src_tex, |
| unsigned src_level, |
| int srcX0, int srcY0, |
| int srcX1, int srcY1, |
| int srcZ, |
| struct pipe_surface *dst, |
| int dstX0, int dstY0, |
| int dstX1, int dstY1, |
| float z, uint filter ) |
| { |
| util_blit_pixels_writemask( ctx, src_tex, |
| src_level, |
| srcX0, srcY0, |
| srcX1, srcY1, |
| srcZ, |
| dst, |
| dstX0, dstY0, |
| dstX1, dstY1, |
| z, filter, |
| TGSI_WRITEMASK_XYZW ); |
| } |
| |
| |
| /* Release vertex buffer at end of frame to avoid synchronous |
| * rendering. |
| */ |
| void util_blit_flush( struct blit_state *ctx ) |
| { |
| pipe_resource_reference(&ctx->vbuf, NULL); |
| ctx->vbuf_slot = 0; |
| } |
| |
| |
| |
| /** |
| * Copy pixel block from src texture to dst surface. |
| * The sampler view's first_level field indicates the source |
| * mipmap level to use. |
| * XXX need some control over blitting Z and/or stencil. |
| */ |
| void |
| util_blit_pixels_tex(struct blit_state *ctx, |
| struct pipe_sampler_view *src_sampler_view, |
| int srcX0, int srcY0, |
| int srcX1, int srcY1, |
| struct pipe_surface *dst, |
| int dstX0, int dstY0, |
| int dstX1, int dstY1, |
| float z, uint filter) |
| { |
| boolean normalized = src_sampler_view->texture->target != PIPE_TEXTURE_RECT; |
| struct pipe_framebuffer_state fb; |
| float s0, t0, s1, t1; |
| unsigned offset; |
| struct pipe_resource *tex = src_sampler_view->texture; |
| |
| assert(filter == PIPE_TEX_MIPFILTER_NEAREST || |
| filter == PIPE_TEX_MIPFILTER_LINEAR); |
| |
| assert(tex); |
| assert(tex->width0 != 0); |
| assert(tex->height0 != 0); |
| |
| s0 = srcX0; |
| s1 = srcX1; |
| t0 = srcY0; |
| t1 = srcY1; |
| |
| if(normalized) |
| { |
| /* normalize according to the mipmap level's size */ |
| int level = src_sampler_view->u.tex.first_level; |
| float w = (float) u_minify(tex->width0, level); |
| float h = (float) u_minify(tex->height0, level); |
| s0 /= w; |
| s1 /= w; |
| t0 /= h; |
| t1 /= h; |
| } |
| |
| assert(ctx->pipe->screen->is_format_supported(ctx->pipe->screen, dst->format, |
| PIPE_TEXTURE_2D, |
| dst->texture->nr_samples, |
| PIPE_BIND_RENDER_TARGET)); |
| |
| /* save state (restored below) */ |
| cso_save_blend(ctx->cso); |
| cso_save_depth_stencil_alpha(ctx->cso); |
| cso_save_rasterizer(ctx->cso); |
| cso_save_samplers(ctx->cso); |
| cso_save_fragment_sampler_views(ctx->cso); |
| cso_save_stream_outputs(ctx->cso); |
| cso_save_viewport(ctx->cso); |
| cso_save_framebuffer(ctx->cso); |
| cso_save_fragment_shader(ctx->cso); |
| cso_save_vertex_shader(ctx->cso); |
| cso_save_geometry_shader(ctx->cso); |
| cso_save_vertex_elements(ctx->cso); |
| cso_save_vertex_buffers(ctx->cso); |
| |
| /* set misc state we care about */ |
| cso_set_blend(ctx->cso, &ctx->blend); |
| cso_set_depth_stencil_alpha(ctx->cso, &ctx->depthstencil_keep); |
| cso_set_rasterizer(ctx->cso, &ctx->rasterizer); |
| cso_set_vertex_elements(ctx->cso, 2, ctx->velem); |
| cso_set_stream_outputs(ctx->cso, 0, NULL, 0); |
| |
| /* sampler */ |
| ctx->sampler.normalized_coords = normalized; |
| ctx->sampler.min_img_filter = filter; |
| ctx->sampler.mag_img_filter = filter; |
| cso_single_sampler(ctx->cso, 0, &ctx->sampler); |
| cso_single_sampler_done(ctx->cso); |
| |
| /* viewport */ |
| ctx->viewport.scale[0] = 0.5f * dst->width; |
| ctx->viewport.scale[1] = 0.5f * dst->height; |
| ctx->viewport.scale[2] = 0.5f; |
| ctx->viewport.scale[3] = 1.0f; |
| ctx->viewport.translate[0] = 0.5f * dst->width; |
| ctx->viewport.translate[1] = 0.5f * dst->height; |
| ctx->viewport.translate[2] = 0.5f; |
| ctx->viewport.translate[3] = 0.0f; |
| cso_set_viewport(ctx->cso, &ctx->viewport); |
| |
| /* texture */ |
| cso_set_fragment_sampler_views(ctx->cso, 1, &src_sampler_view); |
| |
| /* shaders */ |
| set_fragment_shader(ctx, TGSI_WRITEMASK_XYZW); |
| set_vertex_shader(ctx); |
| cso_set_geometry_shader_handle(ctx->cso, NULL); |
| |
| /* drawing dest */ |
| memset(&fb, 0, sizeof(fb)); |
| fb.width = dst->width; |
| fb.height = dst->height; |
| fb.nr_cbufs = 1; |
| fb.cbufs[0] = dst; |
| cso_set_framebuffer(ctx->cso, &fb); |
| |
| /* draw quad */ |
| offset = setup_vertex_data_tex(ctx, |
| (float) dstX0 / dst->width * 2.0f - 1.0f, |
| (float) dstY0 / dst->height * 2.0f - 1.0f, |
| (float) dstX1 / dst->width * 2.0f - 1.0f, |
| (float) dstY1 / dst->height * 2.0f - 1.0f, |
| s0, t0, s1, t1, |
| z); |
| |
| util_draw_vertex_buffer(ctx->pipe, ctx->cso, |
| ctx->vbuf, offset, |
| PIPE_PRIM_TRIANGLE_FAN, |
| 4, /* verts */ |
| 2); /* attribs/vert */ |
| |
| /* restore state we changed */ |
| cso_restore_blend(ctx->cso); |
| cso_restore_depth_stencil_alpha(ctx->cso); |
| cso_restore_rasterizer(ctx->cso); |
| cso_restore_samplers(ctx->cso); |
| cso_restore_fragment_sampler_views(ctx->cso); |
| cso_restore_viewport(ctx->cso); |
| cso_restore_framebuffer(ctx->cso); |
| cso_restore_fragment_shader(ctx->cso); |
| cso_restore_vertex_shader(ctx->cso); |
| cso_restore_geometry_shader(ctx->cso); |
| cso_restore_vertex_elements(ctx->cso); |
| cso_restore_vertex_buffers(ctx->cso); |
| cso_restore_stream_outputs(ctx->cso); |
| } |