src/mesa/state_tracker/st_texture.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   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:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  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.
  25  *
  26  **************************************************************************/
  27
  28 #include "st_context.h"
  29 #include "st_format.h"
  30 #include "st_texture.h"
  31 #include "st_cb_fbo.h"
  32 #include "st_inlines.h"
  33 #include "main/enums.h"
  34
  35 #undef Elements  /* fix re-defined macro warning */
  36
  37 #include "pipe/p_state.h"
  38 #include "pipe/p_context.h"
  39 #include "pipe/p_defines.h"
  40 #include "util/u_inlines.h"
  41 #include "util/u_format.h"
  42 #include "util/u_rect.h"
  43 #include "util/u_math.h"
  44
  45
  46 #define DBG if(0) printf
  47
  48 #if 0
  49 static GLenum
  50 target_to_target(GLenum target)
  51 {
  52    switch (target) {
  53    case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
  54    case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
  55    case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
  56    case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
  57    case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
  58    case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
  59       return GL_TEXTURE_CUBE_MAP_ARB;
  60    default:
  61       return target;
  62    }
  63 }
  64 #endif
  65
  66
  67 /**
  68  * Allocate a new pipe_resource object
  69  * width0, height0, depth0 are the dimensions of the level 0 image
  70  * (the highest resolution).  last_level indicates how many mipmap levels
  71  * to allocate storage for.  For non-mipmapped textures, this will be zero.
  72  */
  73 struct pipe_resource *
  74 st_texture_create(struct st_context *st,
  75                   enum pipe_texture_target target,
  76                   enum pipe_format format,
  77                   GLuint last_level,
  78                   GLuint width0,
  79                   GLuint height0,
  80                   GLuint depth0,
  81                   GLuint bind )
  82 {
  83    struct pipe_resource pt, *newtex;
  84    struct pipe_screen *screen = st->pipe->screen;
  85
  86    assert(target <= PIPE_TEXTURE_CUBE);
  87
  88    DBG("%s target %s format %s last_level %d\n", __FUNCTION__,
  89        _mesa_lookup_enum_by_nr(target),
  90        _mesa_lookup_enum_by_nr(format), last_level);
  91
  92    assert(format);
  93    assert(screen->is_format_supported(screen, format, target,
  94                                       PIPE_BIND_SAMPLER_VIEW, 0));
  95
  96    memset(&pt, 0, sizeof(pt));
  97    pt.target = target;
  98    pt.format = format;
  99    pt.last_level = last_level;
 100    pt.width0 = width0;
 101    pt.height0 = height0;
 102    pt.depth0 = depth0;
 103    pt.usage = PIPE_USAGE_DEFAULT;
 104    pt.bind = bind;
 105    pt.flags = 0;
 106
 107    newtex = screen->resource_create(screen, &pt);
 108
 109    assert(!newtex || pipe_is_referenced(&newtex->reference));
 110
 111    return newtex;
 112 }
 113
 114
 115 /**
 116  * Check if a texture image can be pulled into a unified mipmap texture.
 117  */
 118 GLboolean
 119 st_texture_match_image(const struct pipe_resource *pt,
 120                        const struct gl_texture_image *image,
 121                        GLuint face, GLuint level)
 122 {
 123    /* Images with borders are never pulled into mipmap textures.
 124     */
 125    if (image->Border)
 126       return GL_FALSE;
 127
 128    /* Check if this image's format matches the established texture's format.
 129     */
 130    if (st_mesa_format_to_pipe_format(image->TexFormat) != pt->format)
 131       return GL_FALSE;
 132
 133    /* Test if this image's size matches what's expected in the
 134     * established texture.
 135     */
 136    if (image->Width != u_minify(pt->width0, level) ||
 137        image->Height != u_minify(pt->height0, level) ||
 138        image->Depth != u_minify(pt->depth0, level))
 139       return GL_FALSE;
 140
 141    return GL_TRUE;
 142 }
 143
 144
 145 /**
 146  * Map a teximage in a mipmap texture.
 147  * \param row_stride  returns row stride in bytes
 148  * \param image_stride  returns image stride in bytes (for 3D textures).
 149  * \return address of mapping
 150  */
 151 GLubyte *
 152 st_texture_image_map(struct st_context *st, struct st_texture_image *stImage,
 153                      GLuint zoffset, enum pipe_transfer_usage usage,
 154                      GLuint x, GLuint y, GLuint w, GLuint h)
 155 {
 156    struct pipe_context *pipe = st->pipe;
 157    struct pipe_resource *pt = stImage->pt;
 158
 159    DBG("%s \n", __FUNCTION__);
 160
 161    stImage->transfer = st_no_flush_get_tex_transfer(st, pt, stImage->face,
 162                                                     stImage->level, zoffset,
 163                                                     usage, x, y, w, h);
 164
 165    if (stImage->transfer)
 166       return pipe_transfer_map(pipe, stImage->transfer);
 167    else
 168       return NULL;
 169 }
 170
 171
 172 void
 173 st_texture_image_unmap(struct st_context *st,
 174                        struct st_texture_image *stImage)
 175 {
 176    struct pipe_context *pipe = st->pipe;
 177
 178    DBG("%s\n", __FUNCTION__);
 179
 180    pipe_transfer_unmap(pipe, stImage->transfer);
 181
 182    pipe->transfer_destroy(pipe, stImage->transfer);
 183 }
 184
 185
 186
 187 /**
 188  * Upload data to a rectangular sub-region.  Lots of choices how to do this:
 189  *
 190  * - memcpy by span to current destination
 191  * - upload data as new buffer and blit
 192  *
 193  * Currently always memcpy.
 194  */
 195 static void
 196 st_surface_data(struct pipe_context *pipe,
 197                 struct pipe_transfer *dst,
 198                 unsigned dstx, unsigned dsty,
 199                 const void *src, unsigned src_stride,
 200                 unsigned srcx, unsigned srcy, unsigned width, unsigned height)
 201 {
 202    void *map = pipe_transfer_map(pipe, dst);
 203
 204    assert(dst->resource);
 205    util_copy_rect(map,
 206                   dst->resource->format,
 207                   dst->stride,
 208                   dstx, dsty,
 209                   width, height,
 210                   src, src_stride,
 211                   srcx, srcy);
 212
 213    pipe_transfer_unmap(pipe, dst);
 214 }
 215
 216
 217 /* Upload data for a particular image.
 218  */
 219 void
 220 st_texture_image_data(struct st_context *st,
 221                       struct pipe_resource *dst,
 222                       GLuint face,
 223                       GLuint level,
 224                       void *src,
 225                       GLuint src_row_stride, GLuint src_image_stride)
 226 {
 227    struct pipe_context *pipe = st->pipe;
 228    GLuint depth = u_minify(dst->depth0, level);
 229    GLuint i;
 230    const GLubyte *srcUB = src;
 231    struct pipe_transfer *dst_transfer;
 232
 233    DBG("%s\n", __FUNCTION__);
 234
 235    for (i = 0; i < depth; i++) {
 236       dst_transfer = st_no_flush_get_tex_transfer(st, dst, face, level, i,
 237                                                   PIPE_TRANSFER_WRITE, 0, 0,
 238                                                   u_minify(dst->width0, level),
 239                                                   u_minify(dst->height0, level));
 240
 241       st_surface_data(pipe, dst_transfer,
 242                       0, 0,                             /* dstx, dsty */
 243                       srcUB,
 244                       src_row_stride,
 245                       0, 0,                             /* source x, y */
 246                       u_minify(dst->width0, level),
 247                       u_minify(dst->height0, level));      /* width, height */
 248
 249       pipe->transfer_destroy(pipe, dst_transfer);
 250
 251       srcUB += src_image_stride;
 252    }
 253 }
 254
 255
 256 /* Copy mipmap image between textures
 257  */
 258 void
 259 st_texture_image_copy(struct pipe_context *pipe,
 260                       struct pipe_resource *dst, GLuint dstLevel,
 261                       struct pipe_resource *src,
 262                       GLuint face)
 263 {
 264    struct pipe_screen *screen = pipe->screen;
 265    GLuint width = u_minify(dst->width0, dstLevel);
 266    GLuint height = u_minify(dst->height0, dstLevel);
 267    GLuint depth = u_minify(dst->depth0, dstLevel);
 268    struct pipe_surface *src_surface;
 269    struct pipe_surface *dst_surface;
 270    GLuint i;
 271
 272    assert(src->width0 == dst->width0);
 273    assert(src->height0 == dst->height0);
 274
 275    for (i = 0; i < depth; i++) {
 276       GLuint srcLevel;
 277
 278       /* find src texture level of needed size */
 279       for (srcLevel = 0; srcLevel <= src->last_level; srcLevel++) {
 280          if (u_minify(src->width0, srcLevel) == width &&
 281              u_minify(src->height0, srcLevel) == height) {
 282             break;
 283          }
 284       }
 285       assert(u_minify(src->width0, srcLevel) == width);
 286       assert(u_minify(src->height0, srcLevel) == height);
 287
 288 #if 0
 289       {
 290          src_surface = screen->get_tex_surface(screen, src, face, srcLevel, i,
 291                                                PIPE_BUFFER_USAGE_CPU_READ);
 292          ubyte *map = screen->surface_map(screen, src_surface, PIPE_BUFFER_USAGE_CPU_READ);
 293          map += src_surface->width * src_surface->height * 4 / 2;
 294          printf("%s center pixel: %d %d %d %d (pt %p[%d] -> %p[%d])\n",
 295                 __FUNCTION__,
 296                 map[0], map[1], map[2], map[3],
 297                 src, srcLevel, dst, dstLevel);
 298
 299          screen->surface_unmap(screen, src_surface);
 300          pipe_surface_reference(&src_surface, NULL);
 301       }
 302 #endif
 303
 304       dst_surface = screen->get_tex_surface(screen, dst, face, dstLevel, i,
 305                                             PIPE_BIND_BLIT_DESTINATION);
 306
 307       src_surface = screen->get_tex_surface(screen, src, face, srcLevel, i,
 308                                             PIPE_BIND_BLIT_SOURCE);
 309
 310       pipe->surface_copy(pipe,
 311                          dst_surface,
 312                          0, 0, /* destX, Y */
 313                          src_surface,
 314                          0, 0, /* srcX, Y */
 315                          width, height);
 316
 317       pipe_surface_reference(&src_surface, NULL);
 318       pipe_surface_reference(&dst_surface, NULL);
 319    }
 320 }
 321
 322
 323 void
 324 st_teximage_flush_before_map(struct st_context *st,
 325                              struct pipe_resource *pt,
 326                              unsigned int face,
 327                              unsigned int level,
 328                              enum pipe_transfer_usage usage)
 329 {
 330    struct pipe_context *pipe = st->pipe;
 331    unsigned referenced =
 332       pipe->is_resource_referenced(pipe, pt, face, level);
 333
 334    if (referenced && ((referenced & PIPE_REFERENCED_FOR_WRITE) ||
 335                       (usage & PIPE_TRANSFER_WRITE)))
 336       st->pipe->flush(st->pipe, PIPE_FLUSH_RENDER_CACHE, NULL);
 337 }