/************************************************************************** * * Copyright 2003 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. * **************************************************************************/ #include "main/mtypes.h" #include "main/enums.h" #include "main/macros.h" #include "main/colormac.h" #include "main/samplerobj.h" #include "intel_mipmap_tree.h" #include "intel_tex.h" #include "i915_context.h" #include "i915_reg.h" static GLuint translate_texture_format(gl_format mesa_format, GLenum DepthMode) { switch (mesa_format) { case MESA_FORMAT_L8: return MAPSURF_8BIT | MT_8BIT_L8; case MESA_FORMAT_I8: return MAPSURF_8BIT | MT_8BIT_I8; case MESA_FORMAT_A8: return MAPSURF_8BIT | MT_8BIT_A8; case MESA_FORMAT_AL88: return MAPSURF_16BIT | MT_16BIT_AY88; case MESA_FORMAT_RGB565: return MAPSURF_16BIT | MT_16BIT_RGB565; case MESA_FORMAT_ARGB1555: return MAPSURF_16BIT | MT_16BIT_ARGB1555; case MESA_FORMAT_ARGB4444: return MAPSURF_16BIT | MT_16BIT_ARGB4444; case MESA_FORMAT_ARGB8888: return MAPSURF_32BIT | MT_32BIT_ARGB8888; case MESA_FORMAT_XRGB8888: return MAPSURF_32BIT | MT_32BIT_XRGB8888; case MESA_FORMAT_RGBA8888_REV: return MAPSURF_32BIT | MT_32BIT_ABGR8888; case MESA_FORMAT_YCBCR_REV: return (MAPSURF_422 | MT_422_YCRCB_NORMAL); case MESA_FORMAT_YCBCR: return (MAPSURF_422 | MT_422_YCRCB_SWAPY); case MESA_FORMAT_RGB_FXT1: case MESA_FORMAT_RGBA_FXT1: return (MAPSURF_COMPRESSED | MT_COMPRESS_FXT1); case MESA_FORMAT_Z16: if (DepthMode == GL_ALPHA) return (MAPSURF_16BIT | MT_16BIT_A16); else if (DepthMode == GL_INTENSITY) return (MAPSURF_16BIT | MT_16BIT_I16); else return (MAPSURF_16BIT | MT_16BIT_L16); case MESA_FORMAT_RGBA_DXT1: case MESA_FORMAT_RGB_DXT1: return (MAPSURF_COMPRESSED | MT_COMPRESS_DXT1); case MESA_FORMAT_RGBA_DXT3: return (MAPSURF_COMPRESSED | MT_COMPRESS_DXT2_3); case MESA_FORMAT_RGBA_DXT5: return (MAPSURF_COMPRESSED | MT_COMPRESS_DXT4_5); case MESA_FORMAT_S8_Z24: case MESA_FORMAT_X8_Z24: if (DepthMode == GL_ALPHA) return (MAPSURF_32BIT | MT_32BIT_x8A24); else if (DepthMode == GL_INTENSITY) return (MAPSURF_32BIT | MT_32BIT_x8I24); else return (MAPSURF_32BIT | MT_32BIT_x8L24); default: fprintf(stderr, "%s: bad image format %s\n", __FUNCTION__, _mesa_get_format_name(mesa_format)); abort(); return 0; } } /* The i915 (and related graphics cores) do not support GL_CLAMP. The * Intel drivers for "other operating systems" implement GL_CLAMP as * GL_CLAMP_TO_EDGE, so the same is done here. */ static GLuint translate_wrap_mode(GLenum wrap) { switch (wrap) { case GL_REPEAT: return TEXCOORDMODE_WRAP; case GL_CLAMP: return TEXCOORDMODE_CLAMP_EDGE; /* not quite correct */ case GL_CLAMP_TO_EDGE: return TEXCOORDMODE_CLAMP_EDGE; case GL_CLAMP_TO_BORDER: return TEXCOORDMODE_CLAMP_BORDER; case GL_MIRRORED_REPEAT: return TEXCOORDMODE_MIRROR; default: return TEXCOORDMODE_WRAP; } } /* Recalculate all state from scratch. Perhaps not the most * efficient, but this has gotten complex enough that we need * something which is understandable and reliable. */ static bool i915_update_tex_unit(struct intel_context *intel, GLuint unit, GLuint ss3) { struct gl_context *ctx = &intel->ctx; struct i915_context *i915 = i915_context(ctx); struct gl_texture_unit *tUnit = &ctx->Texture.Unit[unit]; struct gl_texture_object *tObj = tUnit->_Current; struct intel_texture_object *intelObj = intel_texture_object(tObj); struct gl_texture_image *firstImage; struct gl_sampler_object *sampler = _mesa_get_samplerobj(ctx, unit); GLuint *state = i915->state.Tex[unit], format, pitch; GLint lodbias, aniso = 0; GLubyte border[4]; GLfloat maxlod; memset(state, 0, sizeof(state)); /*We need to refcount these. */ if (i915->state.tex_buffer[unit] != NULL) { drm_intel_bo_unreference(i915->state.tex_buffer[unit]); i915->state.tex_buffer[unit] = NULL; } if (!intel_finalize_mipmap_tree(intel, unit)) return false; /* Get first image here, since intelObj->firstLevel will get set in * the intel_finalize_mipmap_tree() call above. */ firstImage = tObj->Image[0][tObj->BaseLevel]; drm_intel_bo_reference(intelObj->mt->region->bo); i915->state.tex_buffer[unit] = intelObj->mt->region->bo; i915->state.tex_offset[unit] = intelObj->mt->offset; format = translate_texture_format(firstImage->TexFormat, tObj->DepthMode); pitch = intelObj->mt->region->pitch * intelObj->mt->cpp; state[I915_TEXREG_MS3] = (((firstImage->Height - 1) << MS3_HEIGHT_SHIFT) | ((firstImage->Width - 1) << MS3_WIDTH_SHIFT) | format); if (intelObj->mt->region->tiling != I915_TILING_NONE) { state[I915_TEXREG_MS3] |= MS3_TILED_SURFACE; if (intelObj->mt->region->tiling == I915_TILING_Y) state[I915_TEXREG_MS3] |= MS3_TILE_WALK; } /* We get one field with fraction bits for the maximum addressable * (lowest resolution) LOD. Use it to cover both MAX_LEVEL and * MAX_LOD. */ maxlod = MIN2(sampler->MaxLod, tObj->_MaxLevel - tObj->BaseLevel); state[I915_TEXREG_MS4] = ((((pitch / 4) - 1) << MS4_PITCH_SHIFT) | MS4_CUBE_FACE_ENA_MASK | (U_FIXED(CLAMP(maxlod, 0.0, 11.0), 2) << MS4_MAX_LOD_SHIFT) | ((firstImage->Depth - 1) << MS4_VOLUME_DEPTH_SHIFT)); { GLuint minFilt, mipFilt, magFilt; switch (sampler->MinFilter) { case GL_NEAREST: minFilt = FILTER_NEAREST; mipFilt = MIPFILTER_NONE; break; case GL_LINEAR: minFilt = FILTER_LINEAR; mipFilt = MIPFILTER_NONE; break; case GL_NEAREST_MIPMAP_NEAREST: minFilt = FILTER_NEAREST; mipFilt = MIPFILTER_NEAREST; break; case GL_LINEAR_MIPMAP_NEAREST: minFilt = FILTER_LINEAR; mipFilt = MIPFILTER_NEAREST; break; case GL_NEAREST_MIPMAP_LINEAR: minFilt = FILTER_NEAREST; mipFilt = MIPFILTER_LINEAR; break; case GL_LINEAR_MIPMAP_LINEAR: minFilt = FILTER_LINEAR; mipFilt = MIPFILTER_LINEAR; break; default: return false; } if (sampler->MaxAnisotropy > 1.0) { minFilt = FILTER_ANISOTROPIC; magFilt = FILTER_ANISOTROPIC; if (sampler->MaxAnisotropy > 2.0) aniso = SS2_MAX_ANISO_4; else aniso = SS2_MAX_ANISO_2; } else { switch (sampler->MagFilter) { case GL_NEAREST: magFilt = FILTER_NEAREST; break; case GL_LINEAR: magFilt = FILTER_LINEAR; break; default: return false; } } lodbias = (int) ((tUnit->LodBias + sampler->LodBias) * 16.0); if (lodbias < -256) lodbias = -256; if (lodbias > 255) lodbias = 255; state[I915_TEXREG_SS2] = ((lodbias << SS2_LOD_BIAS_SHIFT) & SS2_LOD_BIAS_MASK); /* YUV conversion: */ if (firstImage->TexFormat == MESA_FORMAT_YCBCR || firstImage->TexFormat == MESA_FORMAT_YCBCR_REV) state[I915_TEXREG_SS2] |= SS2_COLORSPACE_CONVERSION; /* Shadow: */ if (sampler->CompareMode == GL_COMPARE_R_TO_TEXTURE_ARB && tObj->Target != GL_TEXTURE_3D) { if (tObj->Target == GL_TEXTURE_1D) return false; state[I915_TEXREG_SS2] |= (SS2_SHADOW_ENABLE | intel_translate_shadow_compare_func(sampler->CompareFunc)); minFilt = FILTER_4X4_FLAT; magFilt = FILTER_4X4_FLAT; } state[I915_TEXREG_SS2] |= ((minFilt << SS2_MIN_FILTER_SHIFT) | (mipFilt << SS2_MIP_FILTER_SHIFT) | (magFilt << SS2_MAG_FILTER_SHIFT) | aniso); } { GLenum ws = sampler->WrapS; GLenum wt = sampler->WrapT; GLenum wr = sampler->WrapR; float minlod; /* We program 1D textures as 2D textures, so the 2D texcoord could * result in sampling border values if we don't set the T wrap to * repeat. */ if (tObj->Target == GL_TEXTURE_1D) wt = GL_REPEAT; /* 3D textures don't seem to respect the border color. * Fallback if there's ever a danger that they might refer to * it. * * Effectively this means fallback on 3D clamp or * clamp_to_border. */ if (tObj->Target == GL_TEXTURE_3D && (sampler->MinFilter != GL_NEAREST || sampler->MagFilter != GL_NEAREST) && (ws == GL_CLAMP || wt == GL_CLAMP || wr == GL_CLAMP || ws == GL_CLAMP_TO_BORDER || wt == GL_CLAMP_TO_BORDER || wr == GL_CLAMP_TO_BORDER)) return false; /* Only support TEXCOORDMODE_CLAMP_EDGE and TEXCOORDMODE_CUBE (not * used) when using cube map texture coordinates */ if (tObj->Target == GL_TEXTURE_CUBE_MAP_ARB && (((ws != GL_CLAMP) && (ws != GL_CLAMP_TO_EDGE)) || ((wt != GL_CLAMP) && (wt != GL_CLAMP_TO_EDGE)))) return false; /* * According to 3DSTATE_MAP_STATE at page of 104 in Bspec * Vol3d 3D Instructions: * [DevGDG and DevAlv]: Must be a power of 2 for cube maps. * [DevLPT, DevCST and DevBLB]: If not a power of 2, cube maps * must have all faces enabled. * * But, as I tested on pineview(DevBLB derived), the rendering is * bad(you will find the color isn't samplered right in some * fragments). After checking, it seems that the texture layout is * wrong: making the width and height align of 4(although this * doesn't make much sense) will fix this issue and also broke some * others. Well, Bspec mentioned nothing about the layout alignment * and layout for NPOT cube map. I guess the Bspec just assume it's * a POT cube map. * * Thus, I guess we need do this for other platforms as well. */ if (tObj->Target == GL_TEXTURE_CUBE_MAP_ARB && !is_power_of_two(firstImage->Height)) return false; state[I915_TEXREG_SS3] = ss3; /* SS3_NORMALIZED_COORDS */ state[I915_TEXREG_SS3] |= ((translate_wrap_mode(ws) << SS3_TCX_ADDR_MODE_SHIFT) | (translate_wrap_mode(wt) << SS3_TCY_ADDR_MODE_SHIFT) | (translate_wrap_mode(wr) << SS3_TCZ_ADDR_MODE_SHIFT)); minlod = MIN2(sampler->MinLod, tObj->_MaxLevel - tObj->BaseLevel); state[I915_TEXREG_SS3] |= (unit << SS3_TEXTUREMAP_INDEX_SHIFT); state[I915_TEXREG_SS3] |= (U_FIXED(CLAMP(minlod, 0.0, 11.0), 4) << SS3_MIN_LOD_SHIFT); } /* convert border color from float to ubyte */ CLAMPED_FLOAT_TO_UBYTE(border[0], sampler->BorderColor.f[0]); CLAMPED_FLOAT_TO_UBYTE(border[1], sampler->BorderColor.f[1]); CLAMPED_FLOAT_TO_UBYTE(border[2], sampler->BorderColor.f[2]); CLAMPED_FLOAT_TO_UBYTE(border[3], sampler->BorderColor.f[3]); if (firstImage->_BaseFormat == GL_DEPTH_COMPONENT) { /* GL specs that border color for depth textures is taken from the * R channel, while the hardware uses A. Spam R into all the channels * for safety. */ state[I915_TEXREG_SS4] = PACK_COLOR_8888(border[0], border[0], border[0], border[0]); } else { state[I915_TEXREG_SS4] = PACK_COLOR_8888(border[3], border[0], border[1], border[2]); } I915_ACTIVESTATE(i915, I915_UPLOAD_TEX(unit), true); /* memcmp was already disabled, but definitely won't work as the * region might now change and that wouldn't be detected: */ I915_STATECHANGE(i915, I915_UPLOAD_TEX(unit)); #if 0 DBG(TEXTURE, "state[I915_TEXREG_SS2] = 0x%x\n", state[I915_TEXREG_SS2]); DBG(TEXTURE, "state[I915_TEXREG_SS3] = 0x%x\n", state[I915_TEXREG_SS3]); DBG(TEXTURE, "state[I915_TEXREG_SS4] = 0x%x\n", state[I915_TEXREG_SS4]); DBG(TEXTURE, "state[I915_TEXREG_MS2] = 0x%x\n", state[I915_TEXREG_MS2]); DBG(TEXTURE, "state[I915_TEXREG_MS3] = 0x%x\n", state[I915_TEXREG_MS3]); DBG(TEXTURE, "state[I915_TEXREG_MS4] = 0x%x\n", state[I915_TEXREG_MS4]); #endif return true; } void i915UpdateTextureState(struct intel_context *intel) { bool ok = true; GLuint i; for (i = 0; i < I915_TEX_UNITS && ok; i++) { switch (intel->ctx.Texture.Unit[i]._ReallyEnabled) { case TEXTURE_1D_BIT: case TEXTURE_2D_BIT: case TEXTURE_CUBE_BIT: case TEXTURE_3D_BIT: ok = i915_update_tex_unit(intel, i, SS3_NORMALIZED_COORDS); break; case TEXTURE_RECT_BIT: ok = i915_update_tex_unit(intel, i, 0); break; case 0:{ struct i915_context *i915 = i915_context(&intel->ctx); if (i915->state.active & I915_UPLOAD_TEX(i)) I915_ACTIVESTATE(i915, I915_UPLOAD_TEX(i), false); if (i915->state.tex_buffer[i] != NULL) { drm_intel_bo_unreference(i915->state.tex_buffer[i]); i915->state.tex_buffer[i] = NULL; } break; } default: ok = false; break; } } FALLBACK(intel, I915_FALLBACK_TEXTURE, !ok); }