src/mesa/drivers/dri/radeon/radeon_tex_copy.c

   1 /*
   2  * Copyright (C) 2009 Maciej Cencora <m.cencora@gmail.com>
   3  *
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining
   7  * a 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, sublicense, 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
  16  * portions of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  19  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
  21  * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
  22  * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  23  * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  24  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  */
  27
  28 #include "radeon_common.h"
  29 #include "radeon_texture.h"
  30
  31 #include "main/enums.h"
  32 #include "main/image.h"
  33 #include "main/teximage.h"
  34 #include "main/texstate.h"
  35 #include "drivers/common/meta.h"
  36
  37 #include "radeon_mipmap_tree.h"
  38
  39 static GLboolean
  40 do_copy_texsubimage(struct gl_context *ctx,
  41                     GLenum target, GLint level,
  42                     struct radeon_tex_obj *tobj,
  43                     radeon_texture_image *timg,
  44                     GLint dstx, GLint dsty,
  45                     GLint x, GLint y,
  46                     GLsizei width, GLsizei height)
  47 {
  48     radeonContextPtr radeon = RADEON_CONTEXT(ctx);
  49     struct radeon_renderbuffer *rrb;
  50     unsigned src_bpp;
  51     unsigned dst_bpp;
  52     gl_format src_mesaformat;
  53     gl_format dst_mesaformat;
  54     unsigned flip_y;
  55
  56     if (!radeon->vtbl.blit) {
  57         return GL_FALSE;
  58     }
  59
  60     if (_mesa_get_format_bits(timg->base.Base.TexFormat, GL_DEPTH_BITS) > 0) {
  61         if (ctx->ReadBuffer->_DepthBuffer && ctx->ReadBuffer->_DepthBuffer->Wrapped) {
  62             rrb = radeon_renderbuffer(ctx->ReadBuffer->_DepthBuffer->Wrapped);
  63         } else {
  64             rrb = radeon_renderbuffer(ctx->ReadBuffer->_DepthBuffer);
  65         }
  66         flip_y = ctx->ReadBuffer->Attachment[BUFFER_DEPTH].Type == GL_NONE;
  67     } else {
  68         rrb = radeon_renderbuffer(ctx->ReadBuffer->_ColorReadBuffer);
  69         flip_y = ctx->ReadBuffer->Attachment[BUFFER_COLOR0].Type == GL_NONE;
  70     }
  71
  72     // This is software renderbuffer, fallback to swrast
  73     if (!rrb) {
  74         return GL_FALSE;
  75     }
  76
  77     if (!timg->mt) {
  78         radeon_validate_texture_miptree(ctx, &tobj->base);
  79     }
  80
  81     assert(rrb->bo);
  82     assert(timg->mt);
  83     assert(timg->mt->bo);
  84     assert(timg->base.Base.Width >= dstx + width);
  85     assert(timg->base.Base.Height >= dsty + height);
  86
  87     intptr_t src_offset = rrb->draw_offset;
  88     intptr_t dst_offset = radeon_miptree_image_offset(timg->mt, _mesa_tex_target_to_face(target), level);
  89
  90     if (0) {
  91         fprintf(stderr, "%s: copying to face %d, level %d\n",
  92                 __FUNCTION__, _mesa_tex_target_to_face(target), level);
  93         fprintf(stderr, "to: x %d, y %d, offset %d\n", dstx, dsty, (uint32_t) dst_offset);
  94         fprintf(stderr, "from (%dx%d) width %d, height %d, offset %d, pitch %d\n",
  95                 x, y, rrb->base.Width, rrb->base.Height, (uint32_t) src_offset, rrb->pitch/rrb->cpp);
  96         fprintf(stderr, "src size %d, dst size %d\n", rrb->bo->size, timg->mt->bo->size);
  97
  98     }
  99
 100     src_mesaformat = rrb->base.Format;
 101     dst_mesaformat = timg->base.Base.TexFormat;
 102     src_bpp = _mesa_get_format_bytes(src_mesaformat);
 103     dst_bpp = _mesa_get_format_bytes(dst_mesaformat);
 104     if (!radeon->vtbl.check_blit(dst_mesaformat, rrb->pitch / rrb->cpp)) {
 105             /* depth formats tend to be special */
 106             if (_mesa_get_format_bits(dst_mesaformat, GL_DEPTH_BITS) > 0)
 107                     return GL_FALSE;
 108
 109             if (src_bpp != dst_bpp)
 110                     return GL_FALSE;
 111
 112             switch (dst_bpp) {
 113             case 2:
 114                     src_mesaformat = MESA_FORMAT_RGB565;
 115                     dst_mesaformat = MESA_FORMAT_RGB565;
 116                     break;
 117             case 4:
 118                     src_mesaformat = MESA_FORMAT_ARGB8888;
 119                     dst_mesaformat = MESA_FORMAT_ARGB8888;
 120                     break;
 121             case 1:
 122                     src_mesaformat = MESA_FORMAT_A8;
 123                     dst_mesaformat = MESA_FORMAT_A8;
 124                     break;
 125             default:
 126                     return GL_FALSE;
 127             }
 128     }
 129
 130     /* blit from src buffer to texture */
 131     return radeon->vtbl.blit(ctx, rrb->bo, src_offset, src_mesaformat, rrb->pitch/rrb->cpp,
 132                              rrb->base.Width, rrb->base.Height, x, y,
 133                              timg->mt->bo, dst_offset, dst_mesaformat,
 134                              timg->mt->levels[level].rowstride / dst_bpp,
 135                              timg->base.Base.Width, timg->base.Base.Height,
 136                              dstx, dsty, width, height, flip_y);
 137 }
 138
 139 void
 140 radeonCopyTexSubImage2D(struct gl_context *ctx, GLenum target, GLint level,
 141                         GLint xoffset, GLint yoffset,
 142                         GLint x, GLint y,
 143                         GLsizei width, GLsizei height)
 144 {
 145     struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
 146     struct gl_texture_object *texObj = _mesa_select_tex_object(ctx, texUnit, target);
 147     struct gl_texture_image *texImage = _mesa_select_tex_image(ctx, texObj, target, level);
 148
 149     radeonContextPtr radeon = RADEON_CONTEXT(ctx);
 150     radeon_prepare_render(radeon);
 151
 152     if (!do_copy_texsubimage(ctx, target, level,
 153                              radeon_tex_obj(texObj), (radeon_texture_image *)texImage,
 154                              xoffset, yoffset, x, y, width, height)) {
 155
 156         radeon_print(RADEON_FALLBACKS, RADEON_NORMAL,
 157                      "Falling back to sw for glCopyTexSubImage2D\n");
 158
 159         _mesa_meta_CopyTexSubImage2D(ctx, target, level,
 160                                      xoffset, yoffset, x, y, width, height);
 161     }
 162 }