src/mesa/drivers/dri/intel/intel_tex_subimage.c

   1
   2 /**************************************************************************
   3  *
   4  * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
   5  * All Rights Reserved.
   6  *
   7  * Permission is hereby granted, free of charge, to any person obtaining a
   8  * copy of this software and associated documentation files (the
   9  * "Software"), to deal in the Software without restriction, including
  10  * without limitation the rights to use, copy, modify, merge, publish,
  11  * distribute, sub license, and/or sell copies of the Software, and to
  12  * permit persons to whom the Software is furnished to do so, subject to
  13  * the following conditions:
  14  *
  15  * The above copyright notice and this permission notice (including the
  16  * next paragraph) shall be included in all copies or substantial portions
  17  * of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  21  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  22  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  23  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  24  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  25  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  26  *
  27  **************************************************************************/
  28
  29 #include "main/mtypes.h"
  30 #include "main/pbo.h"
  31 #include "main/texobj.h"
  32 #include "main/texstore.h"
  33 #include "main/texcompress.h"
  34 #include "main/enums.h"
  35
  36 #include "intel_context.h"
  37 #include "intel_tex.h"
  38 #include "intel_mipmap_tree.h"
  39 #include "intel_blit.h"
  40
  41 #define FILE_DEBUG_FLAG DEBUG_TEXTURE
  42
  43 static bool
  44 intel_blit_texsubimage(struct gl_context * ctx,
  45                        GLenum target, GLint level,
  46                        GLint xoffset, GLint yoffset,
  47                        GLint width, GLint height,
  48                        GLenum format, GLenum type, const void *pixels,
  49                        const struct gl_pixelstore_attrib *packing,
  50                        struct gl_texture_object *texObj,
  51                        struct gl_texture_image *texImage)
  52 {
  53    struct intel_context *intel = intel_context(ctx);
  54    struct intel_texture_image *intelImage = intel_texture_image(texImage);
  55    GLuint dstRowStride = 0;
  56    drm_intel_bo *temp_bo = NULL;
  57    unsigned int blit_x = 0, blit_y = 0;
  58    unsigned long pitch;
  59    uint32_t tiling_mode = I915_TILING_NONE;
  60    GLubyte *dstMap;
  61
  62    /* Try to do a blit upload of the subimage if the texture is
  63     * currently busy.
  64     */
  65    if (!intelImage->mt)
  66       return false;
  67
  68    /* The blitter can't handle Y tiling */
  69    if (intelImage->mt->region->tiling == I915_TILING_Y)
  70       return false;
  71
  72    if (target != GL_TEXTURE_2D)
  73       return false;
  74
  75    /* On gen6, it's probably not worth swapping to the blit ring to do
  76     * this because of all the overhead involved.
  77     */
  78    if (intel->gen >= 6)
  79       return false;
  80
  81    if (!drm_intel_bo_busy(intelImage->mt->region->bo))
  82       return false;
  83
  84    DBG("BLT subimage %s target %s level %d offset %d,%d %dx%d\n",
  85        __FUNCTION__,
  86        _mesa_lookup_enum_by_nr(target),
  87        level, xoffset, yoffset, width, height);
  88
  89    pixels = _mesa_validate_pbo_teximage(ctx, 2, width, height, 1,
  90                                         format, type, pixels, packing,
  91                                         "glTexSubImage");
  92    if (!pixels)
  93       return false;
  94
  95    temp_bo = drm_intel_bo_alloc_tiled(intel->bufmgr,
  96                                       "subimage blit bo",
  97                                       width, height,
  98                                       intelImage->mt->cpp,
  99                                       &tiling_mode,
 100                                       &pitch,
 101                                       0);
 102    if (temp_bo == NULL) {
 103       _mesa_error(ctx, GL_OUT_OF_MEMORY, "intelTexSubImage");
 104       return false;
 105    }
 106
 107    if (drm_intel_gem_bo_map_gtt(temp_bo)) {
 108       _mesa_error(ctx, GL_OUT_OF_MEMORY, "intelTexSubImage");
 109       return false;
 110    }
 111
 112    dstMap = temp_bo->virtual;
 113    dstRowStride = pitch;
 114
 115    intel_miptree_get_image_offset(intelImage->mt, level,
 116                                   intelImage->base.Base.Face, 0,
 117                                   &blit_x, &blit_y);
 118    blit_x += xoffset;
 119    blit_y += yoffset;
 120    xoffset = 0;
 121    yoffset = 0;
 122
 123    if (!_mesa_texstore(ctx, 2, texImage->_BaseFormat,
 124                        texImage->TexFormat,
 125                        xoffset, yoffset, 0,
 126                        dstRowStride,
 127                        &dstMap,
 128                        width, height, 1,
 129                        format, type, pixels, packing)) {
 130       _mesa_error(ctx, GL_OUT_OF_MEMORY, "intelTexSubImage");
 131    }
 132
 133    bool ret;
 134    unsigned int dst_pitch = intelImage->mt->region->pitch *
 135       intelImage->mt->cpp;
 136
 137    drm_intel_gem_bo_unmap_gtt(temp_bo);
 138
 139    ret = intelEmitCopyBlit(intel,
 140                            intelImage->mt->cpp,
 141                            dstRowStride / intelImage->mt->cpp,
 142                            temp_bo, 0, false,
 143                            dst_pitch / intelImage->mt->cpp,
 144                            intelImage->mt->region->bo, 0,
 145                            intelImage->mt->region->tiling,
 146                            0, 0, blit_x, blit_y, width, height,
 147                            GL_COPY);
 148    assert(ret);
 149
 150    drm_intel_bo_unreference(temp_bo);
 151    _mesa_unmap_teximage_pbo(ctx, packing);
 152
 153    return true;
 154 }
 155
 156 static void
 157 intelTexSubImage2D(struct gl_context * ctx,
 158                    GLenum target,
 159                    GLint level,
 160                    GLint xoffset, GLint yoffset,
 161                    GLsizei width, GLsizei height,
 162                    GLenum format, GLenum type,
 163                    const GLvoid * pixels,
 164                    const struct gl_pixelstore_attrib *packing,
 165                    struct gl_texture_object *texObj,
 166                    struct gl_texture_image *texImage)
 167 {
 168    if (!intel_blit_texsubimage(ctx, target, level,
 169                                xoffset, yoffset,
 170                                width, height,
 171                                format, type, pixels, packing,
 172                                texObj, texImage)) {
 173       _mesa_store_texsubimage2d(ctx, target, level,
 174                                 xoffset, yoffset,
 175                                 width, height,
 176                                 format, type, pixels,
 177                                 packing, texObj, texImage);
 178    }
 179 }
 180
 181 void
 182 intelInitTextureSubImageFuncs(struct dd_function_table *functions)
 183 {
 184    functions->TexSubImage2D = intelTexSubImage2D;
 185 }