/************************************************************************** * * 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 "mtypes.h" //#include "enums.h" //#include "texformat.h" //#include "macros.h" //#include "dri_bufmgr.h" #include "pipe/p_context.h" #include "pipe/p_state.h" #include "pipe/p_util.h" #include "i915_state_inlines.h" #include "i915_context.h" #include "i915_reg.h" #include "i915_state.h" //#include "i915_cache.h" static uint bitcount(uint k) { uint count = 0; while (k) { if (k & 1) count++; k = k >> 1; } return count; } static boolean is_power_of_two_texture(const struct pipe_mipmap_tree *mt) { if (bitcount(mt->width0) == 1 && bitcount(mt->height0) == 1 && bitcount(mt->depth0) == 1) { return 1; } else return 0; } /** * Compute i915 texture sampling state. * * 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. * \param state returns the 3 words of compute state */ static void update_sampler(struct i915_context *i915, uint unit, const struct i915_sampler_state *sampler, const struct pipe_mipmap_tree *mt, unsigned state[3] ) { /* Need to do this after updating the maps, which call the * intel_finalize_mipmap_tree and hence can update firstLevel: */ state[0] = sampler->state[0]; state[1] = sampler->state[1]; state[2] = sampler->state[2]; if (mt->format == PIPE_FORMAT_YCBCR || mt->format == PIPE_FORMAT_YCBCR_REV) state[0] |= SS2_COLORSPACE_CONVERSION; /* 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. * * XXX: Check if this is true on i945. * XXX: Check if this bug got fixed in release silicon. */ #if 0 { const unsigned ws = sampler->templ->wrap_s; const unsigned wt = sampler->templ->wrap_t; const unsigned wr = sampler->templ->wrap_r; if (mt->target == PIPE_TEXTURE_3D && (sampler->templ->min_img_filter != PIPE_TEX_FILTER_NEAREST || sampler->templ->mag_img_filter != PIPE_TEX_FILTER_NEAREST) && (ws == PIPE_TEX_WRAP_CLAMP || wt == PIPE_TEX_WRAP_CLAMP || wr == PIPE_TEX_WRAP_CLAMP || ws == PIPE_TEX_WRAP_CLAMP_TO_BORDER || wt == PIPE_TEX_WRAP_CLAMP_TO_BORDER || wr == PIPE_TEX_WRAP_CLAMP_TO_BORDER)) { if (i915->strict_conformance) { assert(0); /* sampler->fallback = true; */ /* TODO */ } } } #endif state[1] |= (unit << SS3_TEXTUREMAP_INDEX_SHIFT); if (is_power_of_two_texture(mt)) { state[1] |= SS3_NORMALIZED_COORDS; } } void i915_update_samplers( struct i915_context *i915 ) { uint unit; i915->current.sampler_enable_nr = 0; i915->current.sampler_enable_flags = 0x0; for (unit = 0; unit < I915_TEX_UNITS; unit++) { /* determine unit enable/disable by looking for a bound mipmap tree */ /* could also examine the fragment program? */ if (i915->texture[unit]) { update_sampler( i915, unit, i915->sampler[unit], /* sampler state */ i915->texture[unit], /* mipmap tree */ i915->current.sampler[unit] /* the result */ ); i915->current.sampler_enable_nr++; i915->current.sampler_enable_flags |= (1 << unit); } } i915->hardware_dirty |= I915_HW_SAMPLER; } static uint translate_texture_format(uint pipeFormat) { switch (pipeFormat) { case PIPE_FORMAT_U_L8: return MAPSURF_8BIT | MT_8BIT_L8; case PIPE_FORMAT_U_I8: return MAPSURF_8BIT | MT_8BIT_I8; case PIPE_FORMAT_U_A8: return MAPSURF_8BIT | MT_8BIT_A8; case PIPE_FORMAT_U_A8_L8: return MAPSURF_16BIT | MT_16BIT_AY88; case PIPE_FORMAT_U_R5_G6_B5: return MAPSURF_16BIT | MT_16BIT_RGB565; case PIPE_FORMAT_U_A1_R5_G5_B5: return MAPSURF_16BIT | MT_16BIT_ARGB1555; case PIPE_FORMAT_U_A4_R4_G4_B4: return MAPSURF_16BIT | MT_16BIT_ARGB4444; case PIPE_FORMAT_U_A8_R8_G8_B8: return MAPSURF_32BIT | MT_32BIT_ARGB8888; case PIPE_FORMAT_YCBCR_REV: return (MAPSURF_422 | MT_422_YCRCB_NORMAL); case PIPE_FORMAT_YCBCR: return (MAPSURF_422 | MT_422_YCRCB_SWAPY); #if 0 case PIPE_FORMAT_RGB_FXT1: case PIPE_FORMAT_RGBA_FXT1: return (MAPSURF_COMPRESSED | MT_COMPRESS_FXT1); #endif case PIPE_FORMAT_U_Z16: return (MAPSURF_16BIT | MT_16BIT_L16); #if 0 case PIPE_FORMAT_RGBA_DXT1: case PIPE_FORMAT_RGB_DXT1: return (MAPSURF_COMPRESSED | MT_COMPRESS_DXT1); case PIPE_FORMAT_RGBA_DXT3: return (MAPSURF_COMPRESSED | MT_COMPRESS_DXT2_3); case PIPE_FORMAT_RGBA_DXT5: return (MAPSURF_COMPRESSED | MT_COMPRESS_DXT4_5); #endif case PIPE_FORMAT_S8_Z24: return (MAPSURF_32BIT | MT_32BIT_xL824); default: fprintf(stderr, "i915: translate_texture_format() bad image format %x\n", pipeFormat); assert(0); return 0; } } #define I915_TEXREG_MS3 1 #define I915_TEXREG_MS4 2 static void i915_update_texture(struct i915_context *i915, uint unit, uint state[6]) { const struct pipe_mipmap_tree *mt = i915->texture[unit]; uint format, pitch; const uint width = mt->width0, height = mt->height0, depth = mt->depth0; const uint num_levels = mt->last_level - mt->first_level; assert(mt); assert(width); assert(height); assert(depth); #if 0 if (i915->state.tex_buffer[unit] != NULL) { driBOUnReference(i915->state.tex_buffer[unit]); i915->state.tex_buffer[unit] = NULL; } #endif { struct pipe_buffer_handle *p = driBOReference(mt->region->buffer); } #if 0 i915->state.tex_buffer[unit] = driBOReference(intelObj->mt->region-> buffer); i915->state.tex_offset[unit] = intel_miptree_image_offset(intelObj->mt, 0, intelObj-> firstLevel); #endif format = translate_texture_format(mt->format); pitch = mt->pitch * mt->cpp; assert(format); assert(pitch); printf("texture format = 0x%x\n", format); /* MS3 state */ state[0] = (((height - 1) << MS3_HEIGHT_SHIFT) | ((width - 1) << MS3_WIDTH_SHIFT) | format | MS3_USE_FENCE_REGS); /* MS4 state */ state[1] = ((((pitch / 4) - 1) << MS4_PITCH_SHIFT) | MS4_CUBE_FACE_ENA_MASK | ((num_levels * 4) << MS4_MAX_LOD_SHIFT) | ((depth - 1) << MS4_VOLUME_DEPTH_SHIFT)); } void i915_update_textures(struct i915_context *i915) { uint unit; for (unit = 0; unit < I915_TEX_UNITS; unit++) { /* determine unit enable/disable by looking for a bound mipmap tree */ /* could also examine the fragment program? */ if (i915->texture[unit]) { i915_update_texture(i915, unit, i915->current.texbuffer[unit]); } } i915->hardware_dirty |= I915_HW_MAP; }