/************************************************************************** * * Copyright © 2010 Jakob Bornecrantz * * 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 * the rights to use, copy, modify, merge, publish, distribute, sublicense, * 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 NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS 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 "i915_reg.h" #include "i915_context.h" #include "i915_state.h" #include "i915_resource.h" #include "i915_screen.h" /*********************************************************************** * Update framebuffer state */ static unsigned translate_format(enum pipe_format format) { switch (format) { case PIPE_FORMAT_B8G8R8A8_UNORM: case PIPE_FORMAT_B8G8R8X8_UNORM: case PIPE_FORMAT_R8G8B8A8_UNORM: case PIPE_FORMAT_R8G8B8X8_UNORM: return COLOR_BUF_ARGB8888; case PIPE_FORMAT_B5G6R5_UNORM: return COLOR_BUF_RGB565; case PIPE_FORMAT_B5G5R5A1_UNORM: return COLOR_BUF_ARGB1555; case PIPE_FORMAT_B4G4R4A4_UNORM: return COLOR_BUF_ARGB4444; case PIPE_FORMAT_B10G10R10A2_UNORM: return COLOR_BUF_ARGB2101010; case PIPE_FORMAT_L8_UNORM: case PIPE_FORMAT_A8_UNORM: case PIPE_FORMAT_I8_UNORM: return COLOR_BUF_8BIT; default: assert(0); return 0; } } static unsigned translate_depth_format(enum pipe_format zformat) { switch (zformat) { case PIPE_FORMAT_Z24X8_UNORM: case PIPE_FORMAT_Z24_UNORM_S8_UINT: return DEPTH_FRMT_24_FIXED_8_OTHER; case PIPE_FORMAT_Z16_UNORM: return DEPTH_FRMT_16_FIXED; default: assert(0); return 0; } } static inline uint32_t buf_3d_tiling_bits(enum i915_winsys_buffer_tile tiling) { uint32_t tiling_bits = 0; switch (tiling) { case I915_TILE_Y: tiling_bits |= BUF_3D_TILE_WALK_Y; case I915_TILE_X: tiling_bits |= BUF_3D_TILED_SURFACE; case I915_TILE_NONE: break; } return tiling_bits; } static void update_framebuffer(struct i915_context *i915) { struct pipe_surface *cbuf_surface = i915->framebuffer.cbufs[0]; struct pipe_surface *depth_surface = i915->framebuffer.zsbuf; unsigned x, y; int layer; uint32_t draw_offset, draw_size; if (cbuf_surface) { struct i915_texture *tex = i915_texture(cbuf_surface->texture); assert(tex); i915->current.cbuf_bo = tex->buffer; i915->current.cbuf_flags = BUF_3D_ID_COLOR_BACK | BUF_3D_PITCH(tex->stride) | /* pitch in bytes */ buf_3d_tiling_bits(tex->tiling); layer = cbuf_surface->u.tex.first_layer; x = tex->image_offset[cbuf_surface->u.tex.level][layer].nblocksx; y = tex->image_offset[cbuf_surface->u.tex.level][layer].nblocksy; } else { i915->current.cbuf_bo = NULL; x = y = 0; } i915->static_dirty |= I915_DST_BUF_COLOR; /* What happens if no zbuf?? */ if (depth_surface) { struct i915_texture *tex = i915_texture(depth_surface->texture); unsigned offset = i915_texture_offset(tex, depth_surface->u.tex.level, depth_surface->u.tex.first_layer); assert(tex); if (offset != 0) debug_printf("Depth offset is %d\n",offset); i915->current.depth_bo = tex->buffer; i915->current.depth_flags = BUF_3D_ID_DEPTH | BUF_3D_PITCH(tex->stride) | /* pitch in bytes */ buf_3d_tiling_bits(tex->tiling); } else i915->current.depth_bo = NULL; i915->static_dirty |= I915_DST_BUF_DEPTH; /* drawing rect calculations */ draw_offset = x | (y << 16); draw_size = (i915->framebuffer.width - 1 + x) | ((i915->framebuffer.height - 1 + y) << 16); if (i915->current.draw_offset != draw_offset) { i915->current.draw_offset = draw_offset; i915_set_flush_dirty(i915, I915_PIPELINE_FLUSH); i915->static_dirty |= I915_DST_RECT; } if (i915->current.draw_size != draw_size) { i915->current.draw_size = draw_size; i915->static_dirty |= I915_DST_RECT; } /* we also send a new program to make sure the fixup for RGBA surfaces happens */ i915->hardware_dirty |= I915_HW_STATIC | I915_HW_PROGRAM; /* flush the cache in case we sample from the old renderbuffers */ i915_set_flush_dirty(i915, I915_FLUSH_CACHE); } struct i915_tracked_state i915_hw_framebuffer = { "framebuffer", update_framebuffer, I915_NEW_FRAMEBUFFER }; static const struct { enum pipe_format format; uint hw_swizzle; } fixup_formats[] = { { PIPE_FORMAT_R8G8B8A8_UNORM, 0x21030000 /* BGRA */}, { PIPE_FORMAT_R8G8B8X8_UNORM, 0x21030000 /* BGRX */}, { PIPE_FORMAT_L8_UNORM, 0x00030000 /* RRRA */}, { PIPE_FORMAT_I8_UNORM, 0x00030000 /* RRRA */}, { PIPE_FORMAT_A8_UNORM, 0x33330000 /* AAAA */}, { PIPE_FORMAT_NONE, 0x00000000}, }; static uint32_t need_target_fixup(struct pipe_surface* p, uint32_t *fixup) { enum pipe_format f; /* if we don't have a surface bound yet, we don't need to fixup the shader */ if (!p) return 0; f = p->format; for(int i=0; fixup_formats[i].format != PIPE_FORMAT_NONE; i++) if (fixup_formats[i].format == f) { *fixup = fixup_formats[i].hw_swizzle; return f; } *fixup = 0; return 0; } static void update_dst_buf_vars(struct i915_context *i915) { struct pipe_surface *cbuf_surface = i915->framebuffer.cbufs[0]; struct pipe_surface *depth_surface = i915->framebuffer.zsbuf; uint32_t dst_buf_vars, cformat, zformat; uint32_t early_z = 0; uint32_t fixup = 0; int need_fixup; if (cbuf_surface) cformat = cbuf_surface->format; else cformat = PIPE_FORMAT_B8G8R8A8_UNORM; /* arbitrary */ cformat = translate_format(cformat); if (depth_surface) { struct i915_texture *tex = i915_texture(depth_surface->texture); struct i915_screen *is = i915_screen(i915->base.screen); zformat = translate_depth_format(depth_surface->format); if (is->is_i945 && tex->tiling != I915_TILE_NONE && !i915->fs->info.writes_z) early_z = CLASSIC_EARLY_DEPTH; } else zformat = 0; dst_buf_vars = DSTORG_HORT_BIAS(0x8) | /* .5 */ DSTORG_VERT_BIAS(0x8) | /* .5 */ LOD_PRECLAMP_OGL | TEX_DEFAULT_COLOR_OGL | cformat | zformat | early_z; if (i915->current.dst_buf_vars != dst_buf_vars) { if (early_z != (i915->current.dst_buf_vars & CLASSIC_EARLY_DEPTH)) i915_set_flush_dirty(i915, I915_PIPELINE_FLUSH); i915->current.dst_buf_vars = dst_buf_vars; i915->static_dirty |= I915_DST_VARS; i915->hardware_dirty |= I915_HW_STATIC; } need_fixup = need_target_fixup(cbuf_surface, &fixup); if (i915->current.target_fixup_format != need_fixup || i915->current.fixup_swizzle != fixup) { i915->current.target_fixup_format = need_fixup; i915->current.fixup_swizzle = fixup; i915->hardware_dirty |= I915_HW_PROGRAM; } } struct i915_tracked_state i915_hw_dst_buf_vars = { "dst buf vars", update_dst_buf_vars, I915_NEW_FRAMEBUFFER | I915_NEW_FS };