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                     struct radeon_tex_obj *tobj,
  42                     radeon_texture_image *timg,
  43                     GLint dstx, GLint dsty,
  44                     struct radeon_renderbuffer *rrb,
  45                     GLint x, GLint y,
  46                     GLsizei width, GLsizei height)
  47 {
  48     radeonContextPtr radeon = RADEON_CONTEXT(ctx);
  49     const GLuint face = timg->base.Base.Face;
  50     const GLuint level = timg->base.Base.Level;
  51     unsigned src_bpp;
  52     unsigned dst_bpp;
  53     gl_format src_mesaformat;
  54     gl_format dst_mesaformat;
  55     unsigned flip_y;
  56
  57     if (!radeon->vtbl.blit) {
  58         return GL_FALSE;
  59     }
  60
  61     // This is software renderbuffer, fallback to swrast
  62     if (!rrb) {
  63         return GL_FALSE;
  64     }
  65
  66     if (_mesa_get_format_bits(timg->base.Base.TexFormat, GL_DEPTH_BITS) > 0) {
  67         /* copying depth values */
  68         flip_y = ctx->ReadBuffer->Attachment[BUFFER_DEPTH].Type == GL_NONE;
  69     } else {
  70         /* copying color */
  71         flip_y = ctx->ReadBuffer->Attachment[BUFFER_COLOR0].Type == GL_NONE;
  72     }
  73
  74     if (!timg->mt) {
  75         radeon_validate_texture_miptree(ctx, &tobj->base.Sampler, &tobj->base);
  76     }
  77
  78     assert(rrb->bo);
  79     assert(timg->mt);
  80     assert(timg->mt->bo);
  81     assert(timg->base.Base.Width >= dstx + width);
  82     assert(timg->base.Base.Height >= dsty + height);
  83
  84     intptr_t src_offset = rrb->draw_offset;
  85     intptr_t dst_offset = radeon_miptree_image_offset(timg->mt, face, level);
  86
  87     if (0) {
  88         fprintf(stderr, "%s: copying to face %d, level %d\n",
  89                 __FUNCTION__, face, level);
  90         fprintf(stderr, "to: x %d, y %d, offset %d\n", dstx, dsty, (uint32_t) dst_offset);
  91         fprintf(stderr, "from (%dx%d) width %d, height %d, offset %d, pitch %d\n",
  92                 x, y, rrb->base.Base.Width, rrb->base.Base.Height, (uint32_t) src_offset, rrb->pitch/rrb->cpp);
  93         fprintf(stderr, "src size %d, dst size %d\n", rrb->bo->size, timg->mt->bo->size);
  94
  95     }
  96
  97     src_mesaformat = rrb->base.Base.Format;
  98     dst_mesaformat = timg->base.Base.TexFormat;
  99     src_bpp = _mesa_get_format_bytes(src_mesaformat);
 100     dst_bpp = _mesa_get_format_bytes(dst_mesaformat);
 101     if (!radeon->vtbl.check_blit(dst_mesaformat, rrb->pitch / rrb->cpp)) {
 102             /* depth formats tend to be special */
 103             if (_mesa_get_format_bits(dst_mesaformat, GL_DEPTH_BITS) > 0)
 104                     return GL_FALSE;
 105
 106             if (src_bpp != dst_bpp)
 107                     return GL_FALSE;
 108
 109             switch (dst_bpp) {
 110             case 2:
 111                     src_mesaformat = MESA_FORMAT_RGB565;
 112                     dst_mesaformat = MESA_FORMAT_RGB565;
 113                     break;
 114             case 4:
 115                     src_mesaformat = MESA_FORMAT_ARGB8888;
 116                     dst_mesaformat = MESA_FORMAT_ARGB8888;
 117                     break;
 118             case 1:
 119                     src_mesaformat = MESA_FORMAT_A8;
 120                     dst_mesaformat = MESA_FORMAT_A8;
 121                     break;
 122             default:
 123                     return GL_FALSE;
 124             }
 125     }
 126
 127     /* blit from src buffer to texture */
 128     return radeon->vtbl.blit(ctx, rrb->bo, src_offset, src_mesaformat, rrb->pitch/rrb->cpp,
 129                              rrb->base.Base.Width, rrb->base.Base.Height, x, y,
 130                              timg->mt->bo, dst_offset, dst_mesaformat,
 131                              timg->mt->levels[level].rowstride / dst_bpp,
 132                              timg->base.Base.Width, timg->base.Base.Height,
 133                              dstx, dsty, width, height, flip_y);
 134 }
 135
 136 void
 137 radeonCopyTexSubImage(struct gl_context *ctx, GLuint dims,
 138                       struct gl_texture_image *texImage,
 139                       GLint xoffset, GLint yoffset, GLint zoffset,
 140                       struct gl_renderbuffer *rb,
 141                       GLint x, GLint y,
 142                       GLsizei width, GLsizei height)
 143 {
 144     radeonContextPtr radeon = RADEON_CONTEXT(ctx);
 145     radeon_prepare_render(radeon);
 146
 147     if (dims != 2 || !do_copy_texsubimage(ctx,
 148                              radeon_tex_obj(texImage->TexObject),
 149                              (radeon_texture_image *)texImage,
 150                              xoffset, yoffset,
 151                              radeon_renderbuffer(rb),                                                        x, y, width, height)) {
 152
 153         radeon_print(RADEON_FALLBACKS, RADEON_NORMAL,
 154                      "Falling back to sw for glCopyTexSubImage2D\n");
 155
 156         _mesa_meta_CopyTexSubImage(ctx, dims, texImage,
 157                                    xoffset, yoffset, zoffset,
 158                                      rb, x, y, width, height);
 159     }
 160 }