diff options
Diffstat (limited to 'src/gallium/auxiliary/util')
-rw-r--r-- | src/gallium/auxiliary/util/u_gen_mipmap.c | 495 | ||||
-rw-r--r-- | src/gallium/auxiliary/util/u_gen_mipmap.h | 63 |
2 files changed, 558 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/u_gen_mipmap.c b/src/gallium/auxiliary/util/u_gen_mipmap.c new file mode 100644 index 00000000000..f0b822929ea --- /dev/null +++ b/src/gallium/auxiliary/util/u_gen_mipmap.c @@ -0,0 +1,495 @@ +/************************************************************************** + * + * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * 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, 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 TUNGSTEN GRAPHICS AND/OR ITS 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. + * + **************************************************************************/ + +/** + * @file + * Mipmap generation utility + * + * @author Brian Paul + */ + + +#include "pipe/p_context.h" +#include "pipe/p_defines.h" +#include "pipe/p_inlines.h" +#include "pipe/p_util.h" +#include "pipe/p_winsys.h" +#include "pipe/p_shader_tokens.h" + +#include "util/u_draw_quad.h" +#include "util/u_gen_mipmap.h" + +#include "tgsi/util/tgsi_build.h" +#include "tgsi/util/tgsi_dump.h" +#include "tgsi/util/tgsi_parse.h" + + +/** + * Make simple fragment shader: + * TEX OUT[0], IN[0], SAMP[0], 2D; + * END; + */ +static void +make_fragment_shader(struct gen_mipmap_state *ctx) +{ + struct pipe_context *pipe = ctx->pipe; + uint maxTokens = 100; + struct tgsi_token *tokens; + struct tgsi_header *header; + struct tgsi_processor *processor; + struct tgsi_full_declaration decl; + struct tgsi_full_instruction inst; + const uint procType = TGSI_PROCESSOR_FRAGMENT; + uint ti = 0; + struct pipe_shader_state shader; + + tokens = (struct tgsi_token *) malloc(maxTokens * sizeof(tokens[0])); + + /* shader header + */ + *(struct tgsi_version *) &tokens[0] = tgsi_build_version(); + + header = (struct tgsi_header *) &tokens[1]; + *header = tgsi_build_header(); + + processor = (struct tgsi_processor *) &tokens[2]; + *processor = tgsi_build_processor( procType, header ); + + ti = 3; + + /* declare TEX[0] input */ + decl = tgsi_default_full_declaration(); + decl.Declaration.File = TGSI_FILE_INPUT; + decl.Declaration.Semantic = 1; + decl.Semantic.SemanticName = TGSI_SEMANTIC_GENERIC; + decl.Semantic.SemanticIndex = 0; + /* XXX this could be linear... */ + decl.Declaration.Interpolate = 1; + decl.Interpolation.Interpolate = TGSI_INTERPOLATE_PERSPECTIVE; + decl.u.DeclarationRange.First = + decl.u.DeclarationRange.Last = 0; + ti += tgsi_build_full_declaration(&decl, + &tokens[ti], + header, + maxTokens - ti); + + /* declare color[0] output */ + decl = tgsi_default_full_declaration(); + decl.Declaration.File = TGSI_FILE_OUTPUT; + decl.Declaration.Semantic = 1; + decl.Semantic.SemanticName = TGSI_SEMANTIC_COLOR; + decl.Semantic.SemanticIndex = 0; + decl.u.DeclarationRange.First = + decl.u.DeclarationRange.Last = 0; + ti += tgsi_build_full_declaration(&decl, + &tokens[ti], + header, + maxTokens - ti); + + /* declare sampler */ + decl = tgsi_default_full_declaration(); + decl.Declaration.File = TGSI_FILE_SAMPLER; + decl.u.DeclarationRange.First = + decl.u.DeclarationRange.Last = 0; + ti += tgsi_build_full_declaration(&decl, + &tokens[ti], + header, + maxTokens - ti); + + /* TEX instruction */ + inst = tgsi_default_full_instruction(); + inst.Instruction.Opcode = TGSI_OPCODE_TEX; + inst.Instruction.NumDstRegs = 1; + inst.FullDstRegisters[0].DstRegister.File = TGSI_FILE_OUTPUT; + inst.FullDstRegisters[0].DstRegister.Index = 0; + inst.Instruction.NumSrcRegs = 2; + inst.InstructionExtTexture.Texture = TGSI_TEXTURE_2D; + inst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_INPUT; + inst.FullSrcRegisters[0].SrcRegister.Index = 0; + inst.FullSrcRegisters[1].SrcRegister.File = TGSI_FILE_SAMPLER; + inst.FullSrcRegisters[1].SrcRegister.Index = 0; + ti += tgsi_build_full_instruction(&inst, + &tokens[ti], + header, + maxTokens - ti ); + + /* END instruction */ + inst = tgsi_default_full_instruction(); + inst.Instruction.Opcode = TGSI_OPCODE_END; + inst.Instruction.NumDstRegs = 0; + inst.Instruction.NumSrcRegs = 0; + ti += tgsi_build_full_instruction(&inst, + &tokens[ti], + header, + maxTokens - ti ); + +#if 0 /*debug*/ + tgsi_dump(tokens, 0); +#endif + + shader.tokens = tokens; + ctx->fs = pipe->create_fs_state(pipe, &shader); +} + + +/** + * Make simple fragment shader: + * MOV OUT[0], IN[0]; + * MOV OUT[1], IN[1]; + * END; + * + * XXX eliminate this when vertex passthrough-mode is more solid. + */ +static void +make_vertex_shader(struct gen_mipmap_state *ctx) +{ + struct pipe_context *pipe = ctx->pipe; + uint maxTokens = 100; + struct tgsi_token *tokens; + struct tgsi_header *header; + struct tgsi_processor *processor; + struct tgsi_full_declaration decl; + struct tgsi_full_instruction inst; + const uint procType = TGSI_PROCESSOR_VERTEX; + uint ti = 0; + struct pipe_shader_state shader; + + tokens = (struct tgsi_token *) malloc(maxTokens * sizeof(tokens[0])); + + /* shader header + */ + *(struct tgsi_version *) &tokens[0] = tgsi_build_version(); + + header = (struct tgsi_header *) &tokens[1]; + *header = tgsi_build_header(); + + processor = (struct tgsi_processor *) &tokens[2]; + *processor = tgsi_build_processor( procType, header ); + + ti = 3; + + /* declare POS input */ + decl = tgsi_default_full_declaration(); + decl.Declaration.File = TGSI_FILE_INPUT; + /* + decl.Declaration.Semantic = 1; + decl.Semantic.SemanticName = TGSI_SEMANTIC_POSITION; + decl.Semantic.SemanticIndex = 0; + */ + decl.u.DeclarationRange.First = + decl.u.DeclarationRange.Last = 0; + ti += tgsi_build_full_declaration(&decl, + &tokens[ti], + header, + maxTokens - ti); + /* declare TEX[0] input */ + decl = tgsi_default_full_declaration(); + decl.Declaration.File = TGSI_FILE_INPUT; + /* + decl.Declaration.Semantic = 1; + decl.Semantic.SemanticName = TGSI_SEMANTIC_GENERIC; + decl.Semantic.SemanticIndex = 0; + */ + decl.u.DeclarationRange.First = + decl.u.DeclarationRange.Last = 1; + ti += tgsi_build_full_declaration(&decl, + &tokens[ti], + header, + maxTokens - ti); + + /* declare POS output */ + decl = tgsi_default_full_declaration(); + decl.Declaration.File = TGSI_FILE_OUTPUT; + decl.Declaration.Semantic = 1; + decl.Semantic.SemanticName = TGSI_SEMANTIC_POSITION; + decl.Semantic.SemanticIndex = 0; + decl.u.DeclarationRange.First = + decl.u.DeclarationRange.Last = 0; + ti += tgsi_build_full_declaration(&decl, + &tokens[ti], + header, + maxTokens - ti); + + /* declare TEX[0] output */ + decl = tgsi_default_full_declaration(); + decl.Declaration.File = TGSI_FILE_OUTPUT; + decl.Declaration.Semantic = 1; + decl.Semantic.SemanticName = TGSI_SEMANTIC_GENERIC; + decl.Semantic.SemanticIndex = 0; + decl.u.DeclarationRange.First = + decl.u.DeclarationRange.Last = 1; + ti += tgsi_build_full_declaration(&decl, + &tokens[ti], + header, + maxTokens - ti); + + /* MOVE out[0], in[0]; # POS */ + inst = tgsi_default_full_instruction(); + inst.Instruction.Opcode = TGSI_OPCODE_MOV; + inst.Instruction.NumDstRegs = 1; + inst.FullDstRegisters[0].DstRegister.File = TGSI_FILE_OUTPUT; + inst.FullDstRegisters[0].DstRegister.Index = 0; + inst.Instruction.NumSrcRegs = 1; + inst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_INPUT; + inst.FullSrcRegisters[0].SrcRegister.Index = 0; + ti += tgsi_build_full_instruction(&inst, + &tokens[ti], + header, + maxTokens - ti ); + + /* MOVE out[1], in[1]; # TEX */ + inst = tgsi_default_full_instruction(); + inst.Instruction.Opcode = TGSI_OPCODE_MOV; + inst.Instruction.NumDstRegs = 1; + inst.FullDstRegisters[0].DstRegister.File = TGSI_FILE_OUTPUT; + inst.FullDstRegisters[0].DstRegister.Index = 1; + inst.Instruction.NumSrcRegs = 1; + inst.FullSrcRegisters[0].SrcRegister.File = TGSI_FILE_INPUT; + inst.FullSrcRegisters[0].SrcRegister.Index = 1; + ti += tgsi_build_full_instruction(&inst, + &tokens[ti], + header, + maxTokens - ti ); + + /* END instruction */ + inst = tgsi_default_full_instruction(); + inst.Instruction.Opcode = TGSI_OPCODE_END; + inst.Instruction.NumDstRegs = 0; + inst.Instruction.NumSrcRegs = 0; + ti += tgsi_build_full_instruction(&inst, + &tokens[ti], + header, + maxTokens - ti ); + +#if 0 /*debug*/ + tgsi_dump(tokens, 0); +#endif + + shader.tokens = tokens; + ctx->vs = pipe->create_vs_state(pipe, &shader); +} + + +/** + * Create a mipmap generation context. + * The idea is to create one of these and re-use it each time we need to + * generate a mipmap. + */ +struct gen_mipmap_state * +util_create_gen_mipmap(struct pipe_context *pipe) +{ + struct pipe_blend_state blend; + struct pipe_depth_stencil_alpha_state depthstencil; + struct pipe_rasterizer_state rasterizer; + struct gen_mipmap_state *ctx; + + ctx = CALLOC_STRUCT(gen_mipmap_state); + if (!ctx) + return NULL; + + ctx->pipe = pipe; + + /* we don't use blending, but need to set valid values */ + memset(&blend, 0, sizeof(blend)); + blend.rgb_src_factor = PIPE_BLENDFACTOR_ONE; + blend.alpha_src_factor = PIPE_BLENDFACTOR_ONE; + blend.rgb_dst_factor = PIPE_BLENDFACTOR_ZERO; + blend.alpha_dst_factor = PIPE_BLENDFACTOR_ZERO; + blend.colormask = PIPE_MASK_RGBA; + ctx->blend = pipe->create_blend_state(pipe, &blend); + + /* depth/stencil/alpha */ + memset(&depthstencil, 0, sizeof(depthstencil)); + ctx->depthstencil = pipe->create_depth_stencil_alpha_state(pipe, &depthstencil); + + /* rasterizer */ + memset(&rasterizer, 0, sizeof(rasterizer)); + rasterizer.front_winding = PIPE_WINDING_CW; + rasterizer.cull_mode = PIPE_WINDING_NONE; + rasterizer.bypass_clipping = 1; /* bypasses viewport too */ + //rasterizer.bypass_vs = 1; + ctx->rasterizer = pipe->create_rasterizer_state(pipe, &rasterizer); + +#if 0 + /* viewport */ + ctx->viewport.scale[0] = 1.0; + ctx->viewport.scale[1] = 1.0; + ctx->viewport.scale[2] = 1.0; + ctx->viewport.scale[3] = 1.0; + ctx->viewport.translate[0] = 0.0; + ctx->viewport.translate[1] = 0.0; + ctx->viewport.translate[2] = 0.0; + ctx->viewport.translate[3] = 0.0; +#endif + + make_vertex_shader(ctx); + make_fragment_shader(ctx); + + return ctx; +} + + +/** + * Destroy a mipmap generation context + */ +void +util_destroy_gen_mipmap(struct gen_mipmap_state *ctx) +{ + struct pipe_context *pipe = ctx->pipe; + + pipe->delete_blend_state(pipe, ctx->blend); + pipe->delete_depth_stencil_alpha_state(pipe, ctx->depthstencil); + pipe->delete_rasterizer_state(pipe, ctx->rasterizer); + pipe->delete_vs_state(pipe, ctx->vs); + pipe->delete_fs_state(pipe, ctx->fs); + + FREE(ctx); +} + + +#if 0 +static void +simple_viewport(struct pipe_context *pipe, uint width, uint height) +{ + struct pipe_viewport_state vp; + + vp.scale[0] = 0.5 * width; + vp.scale[1] = -0.5 * height; + vp.scale[2] = 1.0; + vp.scale[3] = 1.0; + vp.translate[0] = 0.5 * width; + vp.translate[1] = 0.5 * height; + vp.translate[2] = 0.0; + vp.translate[3] = 0.0; + + pipe->set_viewport_state(pipe, &vp); +} +#endif + + +/** + * Generate mipmap images. It's assumed all needed texture memory is + * already allocated. + * + * \param pt the texture to generate mipmap levels for + * \param face which cube face to generate mipmaps for (0 for non-cube maps) + * \param baseLevel the first mipmap level to use as a src + * \param lastLevel the last mipmap level to generate + */ +void +util_gen_mipmap(struct gen_mipmap_state *ctx, + struct pipe_texture *pt, + uint face, uint baseLevel, uint lastLevel) +{ + struct pipe_context *pipe = ctx->pipe; + struct pipe_screen *screen = pipe->screen; + struct pipe_framebuffer_state fb; + struct pipe_sampler_state sampler; + void *sampler_cso; + uint dstLevel; + uint zslice = 0; + + /* check if we can render in the texture's format */ + if (!screen->is_format_supported(screen, pt->format, PIPE_SURFACE)) { +#if 0 + fallback_gen_mipmap(ctx, pt, face, baseLevel, lastLevel); +#endif + return; + } + + /* init framebuffer state */ + memset(&fb, 0, sizeof(fb)); + fb.num_cbufs = 1; + + /* sampler state */ + memset(&sampler, 0, sizeof(sampler)); + sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE; + sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NEAREST; + sampler.min_img_filter = PIPE_TEX_FILTER_LINEAR; + sampler.mag_img_filter = PIPE_TEX_FILTER_LINEAR; + sampler.normalized_coords = 1; + + /* bind our state */ + pipe->bind_blend_state(pipe, ctx->blend); + pipe->bind_depth_stencil_alpha_state(pipe, ctx->depthstencil); + pipe->bind_rasterizer_state(pipe, ctx->rasterizer); + pipe->bind_vs_state(pipe, ctx->vs); + pipe->bind_fs_state(pipe, ctx->fs); +#if 0 + pipe->set_viewport_state(pipe, &ctx->viewport); +#endif + + /* + * XXX for small mipmap levels, it may be faster to use the software + * fallback path... + */ + for (dstLevel = baseLevel + 1; dstLevel <= lastLevel; dstLevel++) { + const uint srcLevel = dstLevel - 1; + + /* + * Setup framebuffer / dest surface + */ + fb.cbufs[0] = screen->get_tex_surface(screen, pt, face, dstLevel, zslice); + pipe->set_framebuffer_state(pipe, &fb); + + /* + * Setup sampler state + * Note: we should only have to set the min/max LOD clamps to ensure + * we grab texels from the right mipmap level. But some hardware + * has trouble with min clamping so we also set the lod_bias to + * try to work around that. + */ + sampler.min_lod = sampler.max_lod = srcLevel; + sampler.lod_bias = srcLevel; + sampler_cso = pipe->create_sampler_state(pipe, &sampler); + pipe->bind_sampler_states(pipe, 1, &sampler_cso); + +#if 0 + simple_viewport(pipe, pt->width[dstLevel], pt->height[dstLevel]); +#endif + + pipe->set_sampler_textures(pipe, 1, &pt); + + /* quad coords in window coords (bypassing clipping, viewport mapping) */ + util_draw_texquad(pipe, + 0.0F, 0.0F, /* x0, y0 */ + (float) pt->width[dstLevel], /* x1 */ + (float) pt->height[dstLevel], /* y1 */ + 0.0F); /* z */ + + + pipe->flush(pipe, PIPE_FLUSH_WAIT); + + /*pipe->texture_update(pipe, pt); not really needed */ + + pipe->delete_sampler_state(pipe, sampler_cso); + } + + /* Note: caller must restore pipe/gallium state at this time */ +} diff --git a/src/gallium/auxiliary/util/u_gen_mipmap.h b/src/gallium/auxiliary/util/u_gen_mipmap.h new file mode 100644 index 00000000000..6ee909f0a6f --- /dev/null +++ b/src/gallium/auxiliary/util/u_gen_mipmap.h @@ -0,0 +1,63 @@ +/************************************************************************** + * + * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * 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, 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 TUNGSTEN GRAPHICS AND/OR ITS 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. + * + **************************************************************************/ + +#ifndef U_GENMIPMAP_H +#define U_GENMIPMAP_H + +#include "pipe/p_state.h" + + +struct gen_mipmap_state +{ + struct pipe_context *pipe; + + void *blend; + void *depthstencil; + void *rasterizer; + /*struct pipe_viewport_state viewport;*/ + struct pipe_sampler_state *vs; + struct pipe_sampler_state *fs; +}; + + + +extern struct gen_mipmap_state * +util_create_gen_mipmap(struct pipe_context *pipe); + + +extern void +util_destroy_gen_mipmap(struct gen_mipmap_state *ctx); + + + +extern void +util_gen_mipmap(struct gen_mipmap_state *ctx, + struct pipe_texture *pt, + uint face, uint baseLevel, uint lastLevel); + + +#endif |