| /* |
| * 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 |
| * on 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 |
| * THE AUTHOR(S) AND/OR THEIR 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. */ |
| |
| #include "r300_context.h" |
| #include "r300_texture.h" |
| |
| #include "util/u_format.h" |
| |
| enum r300_blitter_op /* bitmask */ |
| { |
| R300_CLEAR = 1, |
| R300_CLEAR_SURFACE = 2, |
| R300_COPY = 4 |
| }; |
| |
| static void r300_blitter_begin(struct r300_context* r300, enum r300_blitter_op op) |
| { |
| if (r300->query_current) { |
| r300->blitter_saved_query = r300->query_current; |
| r300_stop_query(r300); |
| } |
| |
| /* Yeah we have to save all those states to ensure the blitter operation |
| * is really transparent. The states will be restored by the blitter once |
| * copying is done. */ |
| util_blitter_save_blend(r300->blitter, r300->blend_state.state); |
| util_blitter_save_depth_stencil_alpha(r300->blitter, r300->dsa_state.state); |
| util_blitter_save_stencil_ref(r300->blitter, &(r300->stencil_ref)); |
| util_blitter_save_rasterizer(r300->blitter, r300->rs_state.state); |
| util_blitter_save_fragment_shader(r300->blitter, r300->fs.state); |
| util_blitter_save_vertex_shader(r300->blitter, r300->vs_state.state); |
| util_blitter_save_viewport(r300->blitter, &r300->viewport); |
| util_blitter_save_clip(r300->blitter, (struct pipe_clip_state*)r300->clip_state.state); |
| util_blitter_save_vertex_elements(r300->blitter, r300->velems); |
| util_blitter_save_vertex_buffers(r300->blitter, r300->vertex_buffer_count, |
| r300->vertex_buffer); |
| |
| if (op & (R300_CLEAR_SURFACE | R300_COPY)) |
| util_blitter_save_framebuffer(r300->blitter, r300->fb_state.state); |
| |
| if (op & R300_COPY) { |
| struct r300_textures_state* state = |
| (struct r300_textures_state*)r300->textures_state.state; |
| |
| util_blitter_save_fragment_sampler_states( |
| r300->blitter, state->sampler_state_count, |
| (void**)state->sampler_states); |
| |
| util_blitter_save_fragment_sampler_views( |
| r300->blitter, state->sampler_view_count, |
| (struct pipe_sampler_view**)state->sampler_views); |
| } |
| } |
| |
| static void r300_blitter_end(struct r300_context *r300) |
| { |
| if (r300->blitter_saved_query) { |
| r300_resume_query(r300, r300->blitter_saved_query); |
| r300->blitter_saved_query = NULL; |
| } |
| } |
| |
| /* Clear currently bound buffers. */ |
| static void r300_clear(struct pipe_context* pipe, |
| unsigned buffers, |
| const float* rgba, |
| double depth, |
| unsigned stencil) |
| { |
| /* My notes about fastfill: |
| * |
| * 1) Only the zbuffer is cleared. |
| * |
| * 2) The zbuffer must be micro-tiled and whole microtiles must be |
| * written. If microtiling is disabled, it locks up. |
| * |
| * 3) There is Z Mask RAM which contains a compressed zbuffer and |
| * it interacts with fastfill. We should figure out how to use it |
| * to get more performance. |
| * This is what we know about the Z Mask: |
| * |
| * Each dword of the Z Mask contains compression information |
| * for 16 4x4 pixel blocks, that is 2 bits for each block. |
| * On chips with 2 Z pipes, every other dword maps to a different |
| * pipe. |
| * |
| * 4) ZB_DEPTHCLEARVALUE is used to clear the zbuffer and the Z Mask must |
| * be equal to 0. (clear the Z Mask RAM with zeros) |
| * |
| * 5) For 16-bit zbuffer, compression causes a hung with one or |
| * two samples and should not be used. |
| * |
| * 6) FORCE_COMPRESSED_STENCIL_VALUE should be enabled for stencil clears |
| * to avoid needless decompression. |
| * |
| * 7) Fastfill must not be used if reading of compressed Z data is disabled |
| * and writing of compressed Z data is enabled (RD/WR_COMP_ENABLE), |
| * i.e. it cannot be used to compress the zbuffer. |
| * |
| * 8) ZB_CB_CLEAR does not interact with fastfill in any way. |
| * |
| * - Marek |
| */ |
| |
| struct r300_context* r300 = r300_context(pipe); |
| struct pipe_framebuffer_state* fb = |
| (struct pipe_framebuffer_state*)r300->fb_state.state; |
| |
| r300_blitter_begin(r300, R300_CLEAR); |
| util_blitter_clear(r300->blitter, |
| fb->width, |
| fb->height, |
| fb->nr_cbufs, |
| buffers, rgba, depth, stencil); |
| r300_blitter_end(r300); |
| } |
| |
| /* Clear a region of a color surface to a constant value. */ |
| static void r300_clear_render_target(struct pipe_context *pipe, |
| struct pipe_surface *dst, |
| const float *rgba, |
| unsigned dstx, unsigned dsty, |
| unsigned width, unsigned height) |
| { |
| struct r300_context *r300 = r300_context(pipe); |
| |
| r300_blitter_begin(r300, R300_CLEAR_SURFACE); |
| util_blitter_clear_render_target(r300->blitter, dst, rgba, |
| dstx, dsty, width, height); |
| r300_blitter_end(r300); |
| } |
| |
| /* Clear a region of a depth stencil surface. */ |
| static void r300_clear_depth_stencil(struct pipe_context *pipe, |
| struct pipe_surface *dst, |
| unsigned clear_flags, |
| double depth, |
| unsigned stencil, |
| unsigned dstx, unsigned dsty, |
| unsigned width, unsigned height) |
| { |
| struct r300_context *r300 = r300_context(pipe); |
| |
| r300_blitter_begin(r300, R300_CLEAR_SURFACE); |
| util_blitter_clear_depth_stencil(r300->blitter, dst, clear_flags, depth, stencil, |
| dstx, dsty, width, height); |
| r300_blitter_end(r300); |
| } |
| |
| /* Copy a block of pixels from one surface to another using HW. */ |
| static void r300_hw_copy_region(struct pipe_context* pipe, |
| struct pipe_resource *dst, |
| struct pipe_subresource subdst, |
| unsigned dstx, unsigned dsty, unsigned dstz, |
| struct pipe_resource *src, |
| struct pipe_subresource subsrc, |
| unsigned srcx, unsigned srcy, unsigned srcz, |
| unsigned width, unsigned height) |
| { |
| struct r300_context* r300 = r300_context(pipe); |
| |
| r300_blitter_begin(r300, R300_COPY); |
| util_blitter_copy_region(r300->blitter, dst, subdst, dstx, dsty, dstz, |
| src, subsrc, srcx, srcy, srcz, width, height, |
| TRUE); |
| r300_blitter_end(r300); |
| } |
| |
| /* Copy a block of pixels from one surface to another. */ |
| static void r300_resource_copy_region(struct pipe_context *pipe, |
| struct pipe_resource *dst, |
| struct pipe_subresource subdst, |
| unsigned dstx, unsigned dsty, unsigned dstz, |
| struct pipe_resource *src, |
| struct pipe_subresource subsrc, |
| unsigned srcx, unsigned srcy, unsigned srcz, |
| unsigned width, unsigned height) |
| { |
| enum pipe_format old_format = dst->format; |
| enum pipe_format new_format = old_format; |
| |
| if (!pipe->screen->is_format_supported(pipe->screen, |
| old_format, src->target, |
| src->nr_samples, |
| PIPE_BIND_RENDER_TARGET | |
| PIPE_BIND_SAMPLER_VIEW, 0) && |
| util_format_is_plain(old_format)) { |
| switch (util_format_get_blocksize(old_format)) { |
| case 1: |
| new_format = PIPE_FORMAT_I8_UNORM; |
| break; |
| case 2: |
| new_format = PIPE_FORMAT_B4G4R4A4_UNORM; |
| break; |
| case 4: |
| new_format = PIPE_FORMAT_B8G8R8A8_UNORM; |
| break; |
| case 8: |
| new_format = PIPE_FORMAT_R16G16B16A16_UNORM; |
| break; |
| default: |
| debug_printf("r300: surface_copy: Unhandled format: %s. Falling back to software.\n" |
| "r300: surface_copy: Software fallback doesn't work for tiled textures.\n", |
| util_format_short_name(old_format)); |
| } |
| } |
| |
| if (old_format != new_format) { |
| dst->format = new_format; |
| src->format = new_format; |
| |
| r300_texture_reinterpret_format(pipe->screen, |
| dst, new_format); |
| r300_texture_reinterpret_format(pipe->screen, |
| src, new_format); |
| } |
| |
| r300_hw_copy_region(pipe, dst, subdst, dstx, dsty, dstz, |
| src, subsrc, srcx, srcy, srcz, width, height); |
| |
| if (old_format != new_format) { |
| dst->format = old_format; |
| src->format = old_format; |
| |
| r300_texture_reinterpret_format(pipe->screen, |
| dst, old_format); |
| r300_texture_reinterpret_format(pipe->screen, |
| src, old_format); |
| } |
| } |
| |
| void r300_init_blit_functions(struct r300_context *r300) |
| { |
| r300->context.clear = r300_clear; |
| r300->context.clear_render_target = r300_clear_render_target; |
| r300->context.clear_depth_stencil = r300_clear_depth_stencil; |
| r300->context.resource_copy_region = r300_resource_copy_region; |
| } |