/* * Copyright 2009 Marek Olšák * * 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_blit.h" #include "r300_context.h" #include "r300_texture.h" #include "util/u_format.h" static void r300_blitter_save_states(struct r300_context* r300) { 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); util_blitter_save_vertex_shader(r300->blitter, r300->vs); } /* Clear currently bound buffers. */ void r300_clear(struct pipe_context* pipe, unsigned buffers, const float* rgba, double depth, unsigned stencil) { /* XXX Implement fastfill. * * If fastfill is enabled, a few facts should be considered: * * 1) Zbuffer must be micro-tiled and whole microtiles must be * written. * * 2) ZB_DEPTHCLEARVALUE is used to clear a zbuffer and Z Mask must be * equal to 0. * * 3) RB3D_COLOR_CLEAR_VALUE is used to clear a colorbuffer and * RB3D_COLOR_CHANNEL_MASK must be equal to 0. * * 4) ZB_CB_CLEAR can be used to make the ZB units help in clearing * the colorbuffer. The color clear value is supplied through both * RB3D_COLOR_CLEAR_VALUE and ZB_DEPTHCLEARVALUE, and the colorbuffer * must be set in ZB_DEPTHOFFSET and ZB_DEPTHPITCH in addition to * RB3D_COLOROFFSET and RB3D_COLORPITCH. It's obvious that the zbuffer * will not be cleared and multiple render targets cannot be cleared * this way either. * * 5) For 16-bit integer buffering, compression causes a hung with one or * two samples and should not be used. * * 6) 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. * (what the hell does that mean and how does it fit in clearing * the buffers?) * * - Marek */ struct r300_context* r300 = r300_context(pipe); struct pipe_framebuffer_state* fb = (struct pipe_framebuffer_state*)r300->fb_state.state; r300_blitter_save_states(r300); util_blitter_clear(r300->blitter, fb->width, fb->height, fb->nr_cbufs, buffers, rgba, depth, stencil); } /* Copy a block of pixels from one surface to another using HW. */ static void r300_hw_copy(struct pipe_context* pipe, struct pipe_surface* dst, unsigned dstx, unsigned dsty, struct pipe_surface* src, unsigned srcx, unsigned srcy, unsigned width, unsigned height) { struct r300_context* r300 = r300_context(pipe); /* Yeah we have to save all those states to ensure this blitter operation * is really transparent. The states will be restored by the blitter once * copying is done. */ r300_blitter_save_states(r300); util_blitter_save_framebuffer(r300->blitter, r300->fb_state.state); util_blitter_save_fragment_sampler_states( r300->blitter, r300->sampler_count, (void**)r300->sampler_states); util_blitter_save_fragment_sampler_views( r300->blitter, r300->fragment_sampler_view_count, r300->fragment_sampler_views); /* Do a copy */ util_blitter_copy(r300->blitter, dst, dstx, dsty, src, srcx, srcy, width, height, TRUE); } /* Copy a block of pixels from one surface to another. */ void r300_surface_copy(struct pipe_context* pipe, struct pipe_surface* dst, unsigned dstx, unsigned dsty, struct pipe_surface* src, unsigned srcx, unsigned srcy, unsigned width, unsigned height) { enum pipe_format old_format = dst->texture->format; enum pipe_format new_format = old_format; assert(dst->texture->format == src->texture->format); if (!pipe->screen->is_format_supported(pipe->screen, old_format, src->texture->target, PIPE_TEXTURE_USAGE_RENDER_TARGET | PIPE_TEXTURE_USAGE_SAMPLER, 0)) { switch (util_format_get_blocksize(old_format)) { case 1: new_format = PIPE_FORMAT_I8_UNORM; break; case 2: new_format = PIPE_FORMAT_A4R4G4B4_UNORM; break; case 4: new_format = PIPE_FORMAT_A8R8G8B8_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_name(old_format)); } } if (old_format != new_format) { dst->format = new_format; src->format = new_format; r300_texture_reinterpret_format(pipe->screen, dst->texture, new_format); r300_texture_reinterpret_format(pipe->screen, src->texture, new_format); } r300_hw_copy(pipe, dst, dstx, dsty, src, srcx, srcy, width, height); if (old_format != new_format) { dst->format = old_format; src->format = old_format; r300_texture_reinterpret_format(pipe->screen, dst->texture, old_format); r300_texture_reinterpret_format(pipe->screen, src->texture, old_format); } } /* Fill a region of a surface with a constant value. */ void r300_surface_fill(struct pipe_context* pipe, struct pipe_surface* dst, unsigned dstx, unsigned dsty, unsigned width, unsigned height, unsigned value) { struct r300_context* r300 = r300_context(pipe); r300_blitter_save_states(r300); util_blitter_save_framebuffer(r300->blitter, r300->fb_state.state); util_blitter_fill(r300->blitter, dst, dstx, dsty, width, height, value); }