diff options
Diffstat (limited to 'src/gallium/auxiliary/util/u_blit.c')
| -rw-r--r-- | src/gallium/auxiliary/util/u_blit.c | 163 |
1 files changed, 73 insertions, 90 deletions
diff --git a/src/gallium/auxiliary/util/u_blit.c b/src/gallium/auxiliary/util/u_blit.c index c516317d70..fb00c3abe8 100644 --- a/src/gallium/auxiliary/util/u_blit.c +++ b/src/gallium/auxiliary/util/u_blit.c @@ -182,47 +182,7 @@ get_next_slot( struct blit_state *ctx ) } -/** - * Setup vertex data for the textured quad we'll draw. - * Note: y=0=top - */ -static unsigned -setup_vertex_data(struct blit_state *ctx, - float x0, float y0, float x1, float y1, 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] = 0.0f; /*s*/ - ctx->vertices[0][1][1] = 0.0f; /*t*/ - - ctx->vertices[1][0][0] = x1; - ctx->vertices[1][0][1] = y0; - ctx->vertices[1][0][2] = z; - ctx->vertices[1][1][0] = 1.0f; /*s*/ - ctx->vertices[1][1][1] = 0.0f; /*t*/ - - ctx->vertices[2][0][0] = x1; - ctx->vertices[2][0][1] = y1; - ctx->vertices[2][0][2] = z; - ctx->vertices[2][1][0] = 1.0f; - ctx->vertices[2][1][1] = 1.0f; - - ctx->vertices[3][0][0] = x0; - ctx->vertices[3][0][1] = y1; - ctx->vertices[3][0][2] = z; - ctx->vertices[3][1][0] = 0.0f; - ctx->vertices[3][1][1] = 1.0f; - - offset = get_next_slot( ctx ); - - pipe_buffer_write(ctx->pipe->screen, ctx->vbuf, - offset, sizeof(ctx->vertices), ctx->vertices); - return offset; -} /** @@ -315,15 +275,13 @@ util_blit_pixels_writemask(struct blit_state *ctx, { struct pipe_context *pipe = ctx->pipe; struct pipe_screen *screen = pipe->screen; - struct pipe_texture texTemp, *tex; - struct pipe_surface *texSurf; + struct pipe_texture *tex = NULL; struct pipe_framebuffer_state fb; const int srcW = abs(srcX1 - srcX0); const int srcH = abs(srcY1 - srcY0); - const int srcLeft = MIN2(srcX0, srcX1); - const int srcTop = MIN2(srcY0, srcY1); unsigned offset; boolean overlap; + float s0, t0, s1, t1; assert(filter == PIPE_TEX_MIPFILTER_NEAREST || filter == PIPE_TEX_MIPFILTER_LINEAR); @@ -358,54 +316,76 @@ util_blit_pixels_writemask(struct blit_state *ctx, return; } - 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; - } - assert(screen->is_format_supported(screen, dst->format, PIPE_TEXTURE_2D, PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)); - /* - * XXX for now we're always creating a temporary texture. - * Strictly speaking that's not always needed. + /* Create a temporary texture when src and dest alias or when src + * is anything other than a single-level 2d texture. + * + * This can still be improved upon. */ + if (util_same_surface(src, dst) || + src->texture->target != PIPE_TEXTURE_2D || + src->texture->last_level != 0) + { + struct pipe_texture texTemp; + struct pipe_surface *texSurf; + 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 = PIPE_TEXTURE_2D; + texTemp.format = src->format; + texTemp.last_level = 0; + texTemp.width[0] = srcW; + texTemp.height[0] = srcH; + texTemp.depth[0] = 1; + pf_get_block(src->format, &texTemp.block); + + tex = screen->texture_create(screen, &texTemp); + if (!tex) + return; + + texSurf = screen->get_tex_surface(screen, tex, 0, 0, 0, + PIPE_BUFFER_USAGE_GPU_WRITE); + + /* load temp texture */ + pipe->surface_copy(pipe, + texSurf, 0, 0, /* dest */ + src, srcLeft, srcTop, /* src */ + srcW, srcH); /* size */ + + /* free the surface, update the texture if necessary. + */ + pipe_surface_reference(&texSurf, NULL); + s0 = 0.0f; + s1 = 1.0f; + t0 = 0.0f; + t1 = 1.0f; + } + else { + pipe_texture_reference(&tex, src->texture); + s0 = srcX0 / (float)tex->width[0]; + s1 = srcX1 / (float)tex->width[0]; + t0 = srcY0 / (float)tex->height[0]; + t1 = srcY1 / (float)tex->height[0]; + } - /* create temp texture */ - memset(&texTemp, 0, sizeof(texTemp)); - texTemp.target = PIPE_TEXTURE_2D; - texTemp.format = src->format; - texTemp.last_level = 0; - texTemp.width[0] = srcW; - texTemp.height[0] = srcH; - texTemp.depth[0] = 1; - pf_get_block(src->format, &texTemp.block); - - tex = screen->texture_create(screen, &texTemp); - if (!tex) - return; - - texSurf = screen->get_tex_surface(screen, tex, 0, 0, 0, - PIPE_BUFFER_USAGE_GPU_WRITE); - - /* load temp texture */ - pipe->surface_copy(pipe, - texSurf, 0, 0, /* dest */ - src, srcLeft, srcTop, /* src */ - srcW, srcH); /* size */ - - /* free the surface, update the texture if necessary. - */ - pipe_surface_reference(&texSurf, NULL); /* save state (restored below) */ cso_save_blend(ctx->cso); @@ -447,9 +427,12 @@ util_blit_pixels_writemask(struct blit_state *ctx, cso_set_framebuffer(ctx->cso, &fb); /* draw quad */ - offset = setup_vertex_data(ctx, - (float) dstX0, (float) dstY0, - (float) dstX1, (float) dstY1, z); + offset = setup_vertex_data_tex(ctx, + (float) dstX0, (float) dstY0, + (float) dstX1, (float) dstY1, + s0, t0, + s1, t1, + z); util_draw_vertex_buffer(ctx->pipe, ctx->vbuf, offset, PIPE_PRIM_TRIANGLE_FAN, |