1 /**************************************************************************
3 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
28 #include "main/mtypes.h"
29 #include "main/enums.h"
30 #include "main/colormac.h"
31 #include "main/macros.h"
32 #include "main/samplerobj.h"
34 #include "intel_mipmap_tree.h"
35 #include "intel_tex.h"
37 #include "i830_context.h"
39 #include "intel_chipset.h"
43 translate_texture_format(GLuint mesa_format)
45 switch (mesa_format) {
47 return MAPSURF_8BIT | MT_8BIT_L8;
49 return MAPSURF_8BIT | MT_8BIT_I8;
51 return MAPSURF_8BIT | MT_8BIT_I8; /* Kludge! */
52 case MESA_FORMAT_AL88:
53 return MAPSURF_16BIT | MT_16BIT_AY88;
54 case MESA_FORMAT_RGB565:
55 return MAPSURF_16BIT | MT_16BIT_RGB565;
56 case MESA_FORMAT_ARGB1555:
57 return MAPSURF_16BIT | MT_16BIT_ARGB1555;
58 case MESA_FORMAT_ARGB4444:
59 return MAPSURF_16BIT | MT_16BIT_ARGB4444;
60 case MESA_FORMAT_ARGB8888:
61 return MAPSURF_32BIT | MT_32BIT_ARGB8888;
62 case MESA_FORMAT_XRGB8888:
63 return MAPSURF_32BIT | MT_32BIT_XRGB8888;
64 case MESA_FORMAT_YCBCR_REV:
65 return (MAPSURF_422 | MT_422_YCRCB_NORMAL);
66 case MESA_FORMAT_YCBCR:
67 return (MAPSURF_422 | MT_422_YCRCB_SWAPY);
68 case MESA_FORMAT_RGB_FXT1:
69 case MESA_FORMAT_RGBA_FXT1:
70 return (MAPSURF_COMPRESSED | MT_COMPRESS_FXT1);
71 case MESA_FORMAT_RGBA_DXT1:
72 case MESA_FORMAT_RGB_DXT1:
73 return (MAPSURF_COMPRESSED | MT_COMPRESS_DXT1);
74 case MESA_FORMAT_RGBA_DXT3:
75 return (MAPSURF_COMPRESSED | MT_COMPRESS_DXT2_3);
76 case MESA_FORMAT_RGBA_DXT5:
77 return (MAPSURF_COMPRESSED | MT_COMPRESS_DXT4_5);
79 fprintf(stderr, "%s: bad image format %x\n", __FUNCTION__, mesa_format);
88 /* The i915 (and related graphics cores) do not support GL_CLAMP. The
89 * Intel drivers for "other operating systems" implement GL_CLAMP as
90 * GL_CLAMP_TO_EDGE, so the same is done here.
93 translate_wrap_mode(GLenum wrap)
97 return TEXCOORDMODE_WRAP;
99 case GL_CLAMP_TO_EDGE:
100 return TEXCOORDMODE_CLAMP; /* not really correct */
101 case GL_CLAMP_TO_BORDER:
102 return TEXCOORDMODE_CLAMP_BORDER;
103 case GL_MIRRORED_REPEAT:
104 return TEXCOORDMODE_MIRROR;
106 return TEXCOORDMODE_WRAP;
111 /* Recalculate all state from scratch. Perhaps not the most
112 * efficient, but this has gotten complex enough that we need
113 * something which is understandable and reliable.
116 i830_update_tex_unit(struct intel_context *intel, GLuint unit, GLuint ss3)
118 struct gl_context *ctx = &intel->ctx;
119 struct i830_context *i830 = i830_context(ctx);
120 struct gl_texture_unit *tUnit = &ctx->Texture.Unit[unit];
121 struct gl_texture_object *tObj = tUnit->_Current;
122 struct intel_texture_object *intelObj = intel_texture_object(tObj);
123 struct gl_texture_image *firstImage;
124 struct gl_sampler_object *sampler = _mesa_get_samplerobj(ctx, unit);
125 GLuint *state = i830->state.Tex[unit], format, pitch;
130 memset(state, 0, sizeof(state));
132 /*We need to refcount these. */
134 if (i830->state.tex_buffer[unit] != NULL) {
135 drm_intel_bo_unreference(i830->state.tex_buffer[unit]);
136 i830->state.tex_buffer[unit] = NULL;
139 if (!intel_finalize_mipmap_tree(intel, unit))
142 /* Get first image here, since intelObj->firstLevel will get set in
143 * the intel_finalize_mipmap_tree() call above.
145 firstImage = tObj->Image[0][tObj->BaseLevel];
147 intel_miptree_get_image_offset(intelObj->mt, tObj->BaseLevel, 0, 0,
150 drm_intel_bo_reference(intelObj->mt->region->buffer);
151 i830->state.tex_buffer[unit] = intelObj->mt->region->buffer;
152 pitch = intelObj->mt->region->pitch * intelObj->mt->cpp;
154 /* XXX: This calculation is probably broken for tiled images with
155 * a non-page-aligned offset.
157 i830->state.tex_offset[unit] = dst_x * intelObj->mt->cpp + dst_y * pitch;
159 format = translate_texture_format(firstImage->TexFormat);
161 state[I830_TEXREG_TM0LI] = (_3DSTATE_LOAD_STATE_IMMEDIATE_2 |
162 (LOAD_TEXTURE_MAP0 << unit) | 4);
164 state[I830_TEXREG_TM0S1] =
165 (((firstImage->Height - 1) << TM0S1_HEIGHT_SHIFT) |
166 ((firstImage->Width - 1) << TM0S1_WIDTH_SHIFT) | format);
168 if (intelObj->mt->region->tiling != I915_TILING_NONE) {
169 state[I830_TEXREG_TM0S1] |= TM0S1_TILED_SURFACE;
170 if (intelObj->mt->region->tiling == I915_TILING_Y)
171 state[I830_TEXREG_TM0S1] |= TM0S1_TILE_WALK;
174 state[I830_TEXREG_TM0S2] =
175 ((((pitch / 4) - 1) << TM0S2_PITCH_SHIFT) | TM0S2_CUBE_FACE_ENA_MASK);
178 if (tObj->Target == GL_TEXTURE_CUBE_MAP)
179 state[I830_TEXREG_CUBE] = (_3DSTATE_MAP_CUBE | MAP_UNIT(unit) |
184 CUBE_NEGZ_ENABLE | CUBE_POSZ_ENABLE);
186 state[I830_TEXREG_CUBE] = (_3DSTATE_MAP_CUBE | MAP_UNIT(unit));
193 GLuint minFilt, mipFilt, magFilt;
195 uint32_t minlod_fixed, maxlod_fixed;
197 switch (sampler->MinFilter) {
199 minFilt = FILTER_NEAREST;
200 mipFilt = MIPFILTER_NONE;
203 minFilt = FILTER_LINEAR;
204 mipFilt = MIPFILTER_NONE;
206 case GL_NEAREST_MIPMAP_NEAREST:
207 minFilt = FILTER_NEAREST;
208 mipFilt = MIPFILTER_NEAREST;
210 case GL_LINEAR_MIPMAP_NEAREST:
211 minFilt = FILTER_LINEAR;
212 mipFilt = MIPFILTER_NEAREST;
214 case GL_NEAREST_MIPMAP_LINEAR:
215 minFilt = FILTER_NEAREST;
216 mipFilt = MIPFILTER_LINEAR;
218 case GL_LINEAR_MIPMAP_LINEAR:
219 minFilt = FILTER_LINEAR;
220 mipFilt = MIPFILTER_LINEAR;
226 if (sampler->MaxAnisotropy > 1.0) {
227 minFilt = FILTER_ANISOTROPIC;
228 magFilt = FILTER_ANISOTROPIC;
231 switch (sampler->MagFilter) {
233 magFilt = FILTER_NEAREST;
236 magFilt = FILTER_LINEAR;
243 lodbias = (int) ((tUnit->LodBias + sampler->LodBias) * 16.0);
249 state[I830_TEXREG_TM0S3] = ((lodbias << TM0S3_LOD_BIAS_SHIFT) &
250 TM0S3_LOD_BIAS_MASK);
254 if (firstImage->TexFormat->MesaFormat == MESA_FORMAT_YCBCR ||
255 firstImage->TexFormat->MesaFormat == MESA_FORMAT_YCBCR_REV)
256 state[I830_TEXREG_TM0S3] |= SS2_COLORSPACE_CONVERSION;
259 /* We get one field with fraction bits for the maximum
260 * addressable (smallest resolution) LOD. Use it to cover both
261 * MAX_LEVEL and MAX_LOD.
263 minlod_fixed = U_FIXED(CLAMP(sampler->MinLod, 0.0, 11), 4);
264 maxlod = MIN2(sampler->MaxLod, tObj->_MaxLevel - tObj->BaseLevel);
265 if (intel->intelScreen->deviceID == PCI_CHIP_I855_GM ||
266 intel->intelScreen->deviceID == PCI_CHIP_I865_G) {
267 maxlod_fixed = U_FIXED(CLAMP(maxlod, 0.0, 11.75), 2);
268 maxlod_fixed = MAX2(maxlod_fixed, (minlod_fixed + 3) >> 2);
269 state[I830_TEXREG_TM0S3] |= maxlod_fixed << TM0S3_MIN_MIP_SHIFT;
270 state[I830_TEXREG_TM0S2] |= TM0S2_LOD_PRECLAMP;
272 maxlod_fixed = U_FIXED(CLAMP(maxlod, 0.0, 11), 0);
273 maxlod_fixed = MAX2(maxlod_fixed, (minlod_fixed + 15) >> 4);
274 state[I830_TEXREG_TM0S3] |= maxlod_fixed << TM0S3_MIN_MIP_SHIFT_830;
276 state[I830_TEXREG_TM0S3] |= minlod_fixed << TM0S3_MAX_MIP_SHIFT;
277 state[I830_TEXREG_TM0S3] |= ((minFilt << TM0S3_MIN_FILTER_SHIFT) |
278 (mipFilt << TM0S3_MIP_FILTER_SHIFT) |
279 (magFilt << TM0S3_MAG_FILTER_SHIFT));
283 GLenum ws = sampler->WrapS;
284 GLenum wt = sampler->WrapT;
287 /* 3D textures not available on i830
289 if (tObj->Target == GL_TEXTURE_3D)
292 state[I830_TEXREG_MCS] = (_3DSTATE_MAP_COORD_SET_CMD |
294 ENABLE_TEXCOORD_PARAMS |
297 TEXCOORD_ADDR_V_MODE(translate_wrap_mode(wt))
298 | ENABLE_ADDR_U_CNTL |
299 TEXCOORD_ADDR_U_MODE(translate_wrap_mode
303 /* convert border color from float to ubyte */
304 CLAMPED_FLOAT_TO_UBYTE(border[0], sampler->BorderColor.f[0]);
305 CLAMPED_FLOAT_TO_UBYTE(border[1], sampler->BorderColor.f[1]);
306 CLAMPED_FLOAT_TO_UBYTE(border[2], sampler->BorderColor.f[2]);
307 CLAMPED_FLOAT_TO_UBYTE(border[3], sampler->BorderColor.f[3]);
309 state[I830_TEXREG_TM0S4] = PACK_COLOR_8888(border[3],
314 I830_ACTIVESTATE(i830, I830_UPLOAD_TEX(unit), GL_TRUE);
315 /* memcmp was already disabled, but definitely won't work as the
316 * region might now change and that wouldn't be detected:
318 I830_STATECHANGE(i830, I830_UPLOAD_TEX(unit));
326 i830UpdateTextureState(struct intel_context *intel)
328 struct i830_context *i830 = i830_context(&intel->ctx);
329 GLboolean ok = GL_TRUE;
332 for (i = 0; i < I830_TEX_UNITS && ok; i++) {
333 switch (intel->ctx.Texture.Unit[i]._ReallyEnabled) {
336 case TEXTURE_CUBE_BIT:
337 ok = i830_update_tex_unit(intel, i, TEXCOORDS_ARE_NORMAL);
339 case TEXTURE_RECT_BIT:
340 ok = i830_update_tex_unit(intel, i, TEXCOORDS_ARE_IN_TEXELUNITS);
343 struct i830_context *i830 = i830_context(&intel->ctx);
344 if (i830->state.active & I830_UPLOAD_TEX(i))
345 I830_ACTIVESTATE(i830, I830_UPLOAD_TEX(i), GL_FALSE);
347 if (i830->state.tex_buffer[i] != NULL) {
348 drm_intel_bo_unreference(i830->state.tex_buffer[i]);
349 i830->state.tex_buffer[i] = NULL;
360 FALLBACK(intel, I830_FALLBACK_TEXTURE, !ok);
363 i830EmitTextureBlend(i830);