gl/mesa/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                        struct gl_texture_image *texImage,
  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 {
  51    struct intel_context *intel = intel_context(ctx);
  52    struct intel_texture_image *intelImage = intel_texture_image(texImage);
  53    GLuint dstRowStride = 0;
  54    drm_intel_bo *temp_bo = NULL;
  55    unsigned int blit_x = 0, blit_y = 0;
  56    unsigned long pitch;
  57    uint32_t tiling_mode = I915_TILING_NONE;
  58    GLubyte *dstMap;
  59
  60    /* Try to do a blit upload of the subimage if the texture is
  61     * currently busy.
  62     */
  63    if (!intelImage->mt)
  64       return false;
  65
  66    /* The blitter can't handle Y tiling */
  67    if (intelImage->mt->region->tiling == I915_TILING_Y)
  68       return false;
  69
  70    if (texImage->TexObject->Target != GL_TEXTURE_2D)
  71       return false;
  72
  73    /* On gen6, it's probably not worth swapping to the blit ring to do
  74     * this because of all the overhead involved.
  75     */
  76    if (intel->gen >= 6)
  77       return false;
  78
  79    if (!drm_intel_bo_busy(intelImage->mt->region->bo))
  80       return false;
  81
  82    DBG("BLT subimage %s target %s level %d offset %d,%d %dx%d\n",
  83        __FUNCTION__,
  84        _mesa_lookup_enum_by_nr(texImage->TexObject->Target),
  85        texImage->Level, xoffset, yoffset, width, height);
  86
  87    pixels = _mesa_validate_pbo_teximage(ctx, 2, width, height, 1,
  88                                         format, type, pixels, packing,
  89                                         "glTexSubImage");
  90    if (!pixels)
  91       return false;
  92
  93    temp_bo = drm_intel_bo_alloc_tiled(intel->bufmgr,
  94                                       "subimage blit bo",
  95                                       width, height,
  96                                       intelImage->mt->cpp,
  97                                       &tiling_mode,
  98                                       &pitch,
  99                                       0);
 100    if (temp_bo == NULL) {
 101       _mesa_error(ctx, GL_OUT_OF_MEMORY, "intelTexSubImage");
 102       return false;
 103    }
 104
 105    if (drm_intel_gem_bo_map_gtt(temp_bo)) {
 106       _mesa_error(ctx, GL_OUT_OF_MEMORY, "intelTexSubImage");
 107       return false;
 108    }
 109
 110    dstMap = temp_bo->virtual;
 111    dstRowStride = pitch;
 112
 113    intel_miptree_get_image_offset(intelImage->mt, texImage->Level,
 114                                   intelImage->base.Base.Face, 0,
 115                                   &blit_x, &blit_y);
 116    blit_x += xoffset;
 117    blit_y += yoffset;
 118
 119    if (!_mesa_texstore(ctx, 2, texImage->_BaseFormat,
 120                        texImage->TexFormat,
 121                        dstRowStride,
 122                        &dstMap,
 123                        width, height, 1,
 124                        format, type, pixels, packing)) {
 125       _mesa_error(ctx, GL_OUT_OF_MEMORY, "intelTexSubImage");
 126    }
 127
 128    bool ret;
 129    unsigned int dst_pitch = intelImage->mt->region->pitch *
 130       intelImage->mt->cpp;
 131
 132    drm_intel_gem_bo_unmap_gtt(temp_bo);
 133
 134    ret = intelEmitCopyBlit(intel,
 135                            intelImage->mt->cpp,
 136                            dstRowStride / intelImage->mt->cpp,
 137                            temp_bo, 0, false,
 138                            dst_pitch / intelImage->mt->cpp,
 139                            intelImage->mt->region->bo, 0,
 140                            intelImage->mt->region->tiling,
 141                            0, 0, blit_x, blit_y, width, height,
 142                            GL_COPY);
 143    assert(ret);
 144
 145    drm_intel_bo_unreference(temp_bo);
 146    _mesa_unmap_teximage_pbo(ctx, packing);
 147
 148    return true;
 149 }
 150
 151 static void
 152 intelTexSubImage2D(struct gl_context * ctx,
 153                    struct gl_texture_image *texImage,
 154                    GLint xoffset, GLint yoffset,
 155                    GLsizei width, GLsizei height,
 156                    GLenum format, GLenum type,
 157                    const GLvoid * pixels,
 158                    const struct gl_pixelstore_attrib *packing)
 159 {
 160    if (!intel_blit_texsubimage(ctx, texImage,
 161                                xoffset, yoffset,
 162                                width, height,
 163                                format, type, pixels, packing)) {
 164       _mesa_store_texsubimage2d(ctx, texImage,
 165                                 xoffset, yoffset,
 166                                 width, height,
 167                                 format, type, pixels, packing);
 168    }
 169 }
 170
 171 void
 172 intelInitTextureSubImageFuncs(struct dd_function_table *functions)
 173 {
 174    functions->TexSubImage2D = intelTexSubImage2D;
 175 }