diff options
Diffstat (limited to 'src/gallium/auxiliary/util/u_blitter.c')
-rw-r--r-- | src/gallium/auxiliary/util/u_blitter.c | 168 |
1 files changed, 131 insertions, 37 deletions
diff --git a/src/gallium/auxiliary/util/u_blitter.c b/src/gallium/auxiliary/util/u_blitter.c index cef3b69e46d..249a0375fc5 100644 --- a/src/gallium/auxiliary/util/u_blitter.c +++ b/src/gallium/auxiliary/util/u_blitter.c @@ -163,6 +163,7 @@ struct blitter_context *util_blitter_create(struct pipe_context *pipe) rs_state.cull_mode = PIPE_WINDING_NONE; rs_state.bypass_vs_clip_and_viewport = 1; rs_state.gl_rasterization_rules = 1; + rs_state.flatshade = 1; ctx->rs_state = pipe->create_rasterizer_state(pipe, &rs_state); /* fragment shaders are created on-demand */ @@ -378,9 +379,16 @@ static void blitter_set_texcoords_cube(struct blitter_context_priv *ctx, 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} - }; + float st[4][2]; + + st[0][0] = s1; + st[0][1] = t1; + st[1][0] = s2; + st[1][1] = t1; + st[2][0] = s2; + st[2][1] = t2; + st[3][0] = s1; + st[3][1] = t2; util_map_texcoords2d_onto_cubemap(surf->face, /* pointer, stride in floats */ @@ -567,45 +575,29 @@ void util_blitter_clear(struct blitter_context *blitter, 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) +static boolean +is_overlap(unsigned sx1, unsigned sx2, unsigned sy1, unsigned sy2, + unsigned dx1, unsigned dx2, unsigned dy1, unsigned dy2) +{ + if (sx1 >= dx2 || sx2 <= dx1 || sy1 >= dy2 || sy2 <= dy1) { + return FALSE; + } else { + return TRUE; + } +} + +static void util_blitter_do_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 is_depth) { 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); @@ -663,6 +655,108 @@ void util_blitter_copy(struct blitter_context *blitter, blitter_set_rectangle(ctx, dstx, dsty, dstx+width, dsty+height, 0); blitter_draw_quad(ctx); + +} + +static void util_blitter_overlap_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) +{ + struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter; + struct pipe_context *pipe = ctx->pipe; + struct pipe_screen *screen = pipe->screen; + + struct pipe_texture texTemp; + struct pipe_texture *texture; + struct pipe_surface *tex_surf; + + /* check whether the states are properly saved */ + blitter_check_saved_CSOs(ctx); + + memset(&texTemp, 0, sizeof(texTemp)); + texTemp.target = PIPE_TEXTURE_2D; + texTemp.format = dst->texture->format; /* XXX verify supported by driver! */ + texTemp.last_level = 0; + texTemp.width0 = width; + texTemp.height0 = height; + texTemp.depth0 = 1; + + texture = screen->texture_create(screen, &texTemp); + if (!texture) + return; + + tex_surf = screen->get_tex_surface(screen, texture, 0, 0, 0, + PIPE_BUFFER_USAGE_GPU_READ | + PIPE_BUFFER_USAGE_GPU_WRITE); + + /* blit from the src to the temp */ + util_blitter_do_copy(blitter, tex_surf, 0, 0, + src, srcx, srcy, + width, height, + FALSE); + util_blitter_do_copy(blitter, dst, dstx, dsty, + tex_surf, 0, 0, + width, height, + FALSE); + pipe_surface_reference(&tex_surf, NULL); + pipe_texture_reference(&texture, NULL); + 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; + 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; + + if (dst->texture == src->texture) { + if (is_overlap(srcx, srcx + width, srcy, srcy + height, + dstx, dstx + width, dsty, dsty + height)) { + util_blitter_overlap_copy(blitter, dst, dstx, dsty, src, srcx, srcy, + width, height); + 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); + util_blitter_do_copy(blitter, + dst, dstx, dsty, + src, srcx, srcy, + width, height, is_depth); blitter_restore_CSOs(ctx); } |