From 9be8f7d2267bffd607a759abe5a27099659d34b1 Mon Sep 17 00:00:00 2001 From: Marek Olšák Date: Mon, 12 Jul 2010 06:32:50 +0200 Subject: u_blitter: add draw_rectangle callback which can be overridden by a driver --- src/gallium/auxiliary/util/u_blitter.c | 86 ++++++++++++++++++++++++++-------- src/gallium/auxiliary/util/u_blitter.h | 37 +++++++++++++++ 2 files changed, 104 insertions(+), 19 deletions(-) (limited to 'src/gallium/auxiliary/util') diff --git a/src/gallium/auxiliary/util/u_blitter.c b/src/gallium/auxiliary/util/u_blitter.c index 6a042c6f6df..0d94aaae956 100644 --- a/src/gallium/auxiliary/util/u_blitter.c +++ b/src/gallium/auxiliary/util/u_blitter.c @@ -107,6 +107,14 @@ struct blitter_context_priv unsigned dst_height; }; +static void blitter_draw_rectangle(struct blitter_context *blitter, + unsigned x, unsigned y, + unsigned width, unsigned height, + float depth, + enum blitter_attrib_type type, + const float attrib[4]); + + struct blitter_context *util_blitter_create(struct pipe_context *pipe) { struct blitter_context_priv *ctx; @@ -122,6 +130,7 @@ struct blitter_context *util_blitter_create(struct pipe_context *pipe) return NULL; ctx->base.pipe = pipe; + ctx->base.draw_rectangle = blitter_draw_rectangle; /* init state objects for them to be considered invalid */ ctx->base.saved_blend_state = INVALID_PTR; @@ -604,6 +613,31 @@ void *blitter_get_fs_texfetch_depth(struct blitter_context_priv *ctx, return ctx->fs_texfetch_depth[tex_target]; } +static void blitter_draw_rectangle(struct blitter_context *blitter, + unsigned x1, unsigned y1, + unsigned x2, unsigned y2, + float depth, + enum blitter_attrib_type type, + const float attrib[4]) +{ + struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter; + + switch (type) { + case UTIL_BLITTER_ATTRIB_COLOR: + blitter_set_clear_color(ctx, attrib); + break; + + case UTIL_BLITTER_ATTRIB_TEXCOORD: + set_texcoords_in_vertices(attrib, &ctx->vertices[0][1][0], 8); + break; + + default:; + } + + blitter_set_rectangle(ctx, x1, y1, x2, y2, depth); + blitter_draw_quad(ctx); +} + void util_blitter_clear(struct blitter_context *blitter, unsigned width, unsigned height, unsigned num_cbufs, @@ -647,9 +681,8 @@ void util_blitter_clear(struct blitter_context *blitter, pipe->bind_vs_state(pipe, ctx->vs_col); blitter_set_dst_dimensions(ctx, width, height); - blitter_set_clear_color(ctx, rgba); - blitter_set_rectangle(ctx, 0, 0, width, height, depth); - blitter_draw_quad(ctx); + blitter->draw_rectangle(blitter, 0, 0, width, height, depth, + UTIL_BLITTER_ATTRIB_COLOR, rgba); blitter_restore_CSOs(ctx); } @@ -762,29 +795,45 @@ void util_blitter_copy_region(struct blitter_context *blitter, pipe->set_fragment_sampler_views(pipe, 1, &view); pipe->set_framebuffer_state(pipe, &fb_state); - /* Set texture coordinates. */ + blitter_set_dst_dimensions(ctx, dstsurf->width, dstsurf->height); + switch (src->target) { + /* Draw the quad with the draw_rectangle callback. */ case PIPE_TEXTURE_1D: case PIPE_TEXTURE_2D: - blitter_set_texcoords_2d(ctx, src, subsrc, - srcx, srcy, srcx+width, srcy+height); + { + /* Set texture coordinates. */ + float coord[4]; + get_normalized_texcoords(src, subsrc, srcx, srcy, + srcx+width, srcy+height, coord); + + /* Draw. */ + blitter->draw_rectangle(blitter, dstx, dsty, dstx+width, dsty+height, 0, + UTIL_BLITTER_ATTRIB_TEXCOORD, coord); + } break; + + /* Draw the quad with the generic codepath. */ case PIPE_TEXTURE_3D: - blitter_set_texcoords_3d(ctx, src, subsrc, srcz, - srcx, srcy, srcx+width, srcy+height); - break; case PIPE_TEXTURE_CUBE: - blitter_set_texcoords_cube(ctx, src, subsrc, - srcx, srcy, srcx+width, srcy+height); + /* Set texture coordinates. */ + if (src->target == PIPE_TEXTURE_3D) + blitter_set_texcoords_3d(ctx, src, subsrc, srcz, + srcx, srcy, srcx+width, srcy+height); + else + blitter_set_texcoords_cube(ctx, src, subsrc, + srcx, srcy, srcx+width, srcy+height); + + /* Draw. */ + blitter_set_rectangle(ctx, dstx, dsty, dstx+width, dsty+height, 0); + blitter_draw_quad(ctx); break; + default: assert(0); return; } - blitter_set_dst_dimensions(ctx, dstsurf->width, dstsurf->height); - blitter_set_rectangle(ctx, dstx, dsty, dstx+width, dsty+height, 0); - blitter_draw_quad(ctx); blitter_restore_CSOs(ctx); pipe_surface_reference(&dstsurf, NULL); @@ -827,9 +876,8 @@ void util_blitter_clear_render_target(struct blitter_context *blitter, pipe->set_framebuffer_state(pipe, &fb_state); blitter_set_dst_dimensions(ctx, dstsurf->width, dstsurf->height); - blitter_set_clear_color(ctx, rgba); - blitter_set_rectangle(ctx, dstx, dsty, dstx+width, dsty+height, 0); - blitter_draw_quad(ctx); + blitter->draw_rectangle(blitter, dstx, dsty, dstx+width, dsty+height, 0, + UTIL_BLITTER_ATTRIB_COLOR, rgba); blitter_restore_CSOs(ctx); } @@ -888,7 +936,7 @@ void util_blitter_clear_depth_stencil(struct blitter_context *blitter, pipe->set_framebuffer_state(pipe, &fb_state); blitter_set_dst_dimensions(ctx, dstsurf->width, dstsurf->height); - blitter_set_rectangle(ctx, dstx, dsty, dstx+width, dsty+height, depth); - blitter_draw_quad(ctx); + blitter->draw_rectangle(blitter, dstx, dsty, dstx+width, dsty+height, depth, + UTIL_BLITTER_ATTRIB_NONE, NULL); blitter_restore_CSOs(ctx); } diff --git a/src/gallium/auxiliary/util/u_blitter.h b/src/gallium/auxiliary/util/u_blitter.h index ffcf5c79843..ba3f92eca85 100644 --- a/src/gallium/auxiliary/util/u_blitter.h +++ b/src/gallium/auxiliary/util/u_blitter.h @@ -39,8 +39,45 @@ extern "C" { struct pipe_context; +enum blitter_attrib_type { + UTIL_BLITTER_ATTRIB_NONE, + UTIL_BLITTER_ATTRIB_COLOR, + UTIL_BLITTER_ATTRIB_TEXCOORD +}; + struct blitter_context { + /** + * Draw a rectangle. + * + * \param x1 An X coordinate of the top-left corner. + * \param y1 A Y coordinate of the top-left corner. + * \param x2 An X coordinate of the bottom-right corner. + * \param y2 A Y coordinate of the bottom-right corner. + * \param depth A depth which the rectangle is rendered at. + * + * \param type Semantics of the attributes "attrib". + * If type is UTIL_BLITTER_ATTRIB_NONE, ignore them. + * If type is UTIL_BLITTER_ATTRIB_COLOR, the attributes + * make up a constant RGBA color, and should go to the COLOR0 + * varying slot of a fragment shader. + * If type is UTIL_BLITTER_ATTRIB_TEXCOORD, {a1, a2} and + * {a3, a4} specify top-left and bottom-right texture + * coordinates of the rectangle, respectively, and should go + * to the GENERIC0 varying slot of a fragment shader. + * + * \param attrib See type. + * + * \note A driver may optionally override this callback to implement + * a specialized hardware path for drawing a rectangle, e.g. using + * a rectangular point sprite. + */ + void (*draw_rectangle)(struct blitter_context *blitter, + unsigned x1, unsigned y1, unsigned x2, unsigned y2, + float depth, + enum blitter_attrib_type type, + const float attrib[4]); + /* Private members, really. */ struct pipe_context *pipe; /**< pipe context */ -- cgit v1.2.3