src/mesa/drivers/dri/r300/r300_texcopy.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 "r300_context.h"
  30
  31 #include "main/image.h"
  32 #include "main/teximage.h"
  33 #include "main/texstate.h"
  34 #include "drivers/common/meta.h"
  35
  36 #include "radeon_mipmap_tree.h"
  37 #include "r300_blit.h"
  38 #include <main/debug.h>
  39
  40 static GLboolean
  41 do_copy_texsubimage(GLcontext *ctx,
  42                     GLenum target, GLint level,
  43                     struct radeon_tex_obj *tobj,
  44                     radeon_texture_image *timg,
  45                     GLint dstx, GLint dsty,
  46                     GLint x, GLint y,
  47                     GLsizei width, GLsizei height)
  48 {
  49     struct r300_context *r300 = R300_CONTEXT(ctx);
  50     struct radeon_renderbuffer *rrb;
  51
  52     if (_mesa_get_format_bits(timg->base.TexFormat, GL_DEPTH_BITS) ||
  53         _mesa_get_format_bits(timg->base.TexFormat, GL_STENCIL_BITS)) {
  54         rrb = radeon_get_depthbuffer(&r300->radeon);
  55         return GL_FALSE;
  56     } else {
  57         rrb = radeon_get_colorbuffer(&r300->radeon);
  58     }
  59
  60     assert(rrb && rrb->bo);
  61     assert(timg->mt && timg->mt->bo);
  62     assert(timg->base.Width >= dstx + width);
  63     assert(timg->base.Height >= dsty + height);
  64     assert(tobj->mt == timg->mt);
  65
  66     intptr_t src_offset = rrb->draw_offset + x * rrb->cpp + y * rrb->pitch;
  67     intptr_t dst_offset = radeon_miptree_image_offset(timg->mt, _mesa_tex_target_to_face(target), level);
  68     dst_offset += dstx * _mesa_get_format_bytes(timg->base.TexFormat) +
  69                   dsty * _mesa_format_row_stride(timg->base.TexFormat, timg->base.Width);
  70
  71     if (0) {
  72         fprintf(stderr, "%s: copying to face %d, level %d\n",
  73                 __FUNCTION__, _mesa_tex_target_to_face(target), level);
  74         fprintf(stderr, "to: x %d, y %d, offset %d\n", dstx, dsty, (uint32_t) dst_offset);
  75         fprintf(stderr, "from (%dx%d) width %d, height %d, offset %d, pitch %d, width %d\n",
  76                 x, y, width, height, (uint32_t) src_offset, rrb->pitch, rrb->pitch/rrb->cpp);
  77
  78     }
  79
  80     /* blit from src buffer to texture */
  81     return r300_blit(r300, rrb->bo, src_offset, rrb->base.Format, rrb->pitch,
  82                      width, height, timg->mt->bo, dst_offset,
  83                      timg->base.TexFormat, width, height);
  84 }
  85
  86 static void
  87 r300CopyTexImage2D(GLcontext *ctx, GLenum target, GLint level,
  88                    GLenum internalFormat,
  89                    GLint x, GLint y, GLsizei width, GLsizei height,
  90                    GLint border)
  91 {
  92     struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
  93     struct gl_texture_object *texObj =
  94         _mesa_select_tex_object(ctx, texUnit, target);
  95     struct gl_texture_image *texImage =
  96         _mesa_select_tex_image(ctx, texObj, target, level);
  97     int srcx, srcy, dstx, dsty;
  98
  99     if (border)
 100         goto fail;
 101
 102     /* Setup or redefine the texture object, mipmap tree and texture
 103      * image.  Don't populate yet.
 104      */
 105     ctx->Driver.TexImage2D(ctx, target, level, internalFormat,
 106                            width, height, border,
 107                            GL_RGBA, GL_UNSIGNED_BYTE, NULL,
 108                            &ctx->DefaultPacking, texObj, texImage);
 109
 110     srcx = x;
 111     srcy = y;
 112     dstx = 0;
 113     dsty = 0;
 114     if (!_mesa_clip_copytexsubimage(ctx,
 115                                     &dstx, &dsty,
 116                                     &srcx, &srcy,
 117                                     &width, &height)) {
 118         return;
 119     }
 120
 121     if (!do_copy_texsubimage(ctx, target, level,
 122                              radeon_tex_obj(texObj), (radeon_texture_image *)texImage,
 123                              0, 0, x, y, width, height)) {
 124         goto fail;
 125     }
 126
 127     return;
 128
 129 fail:
 130     _mesa_meta_CopyTexImage2D(ctx, target, level, internalFormat, x, y,
 131                               width, height, border);
 132 }
 133
 134 static void
 135 r300CopyTexSubImage2D(GLcontext *ctx, GLenum target, GLint level,
 136                       GLint xoffset, GLint yoffset,
 137                       GLint x, GLint y,
 138                       GLsizei width, GLsizei height)
 139 {
 140     struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
 141     struct gl_texture_object *texObj = _mesa_select_tex_object(ctx, texUnit, target);
 142     struct gl_texture_image *texImage = _mesa_select_tex_image(ctx, texObj, target, level);
 143
 144     assert(target == GL_TEXTURE_2D);
 145
 146     if (!do_copy_texsubimage(ctx, target, level,
 147                              radeon_tex_obj(texObj), (radeon_texture_image *)texImage,
 148                              xoffset, yoffset, x, y, width, height)) {
 149
 150        //DEBUG_FALLBACKS
 151
 152         _mesa_meta_CopyTexSubImage2D(ctx, target, level,
 153                                      xoffset, yoffset, x, y, width, height);
 154     }
 155 }
 156
 157
 158 void r300_init_texcopy_functions(struct dd_function_table *table)
 159 {
 160     table->CopyTexImage2D = r300CopyTexImage2D;
 161     table->CopyTexSubImage2D = r300CopyTexSubImage2D;
 162 }