i965/vs: Move the flag for whether to use the new backend to the context.

[mesa.git] / src / mesa / drivers / dri / intel / intel_tex_subimage.c

/**************************************************************************
 * 
 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
 * All Rights Reserved.
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sub license, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 * 
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 * 
 **************************************************************************/

#include "main/mtypes.h"
#include "main/pbo.h"
#include "main/texobj.h"
#include "main/texstore.h"
#include "main/texcompress.h"
#include "main/enums.h"

#include "intel_context.h"
#include "intel_tex.h"
#include "intel_mipmap_tree.h"
#include "intel_blit.h"

#define FILE_DEBUG_FLAG DEBUG_TEXTURE

static void
intelTexSubimage(struct gl_context * ctx,
                 GLint dims,
                 GLenum target, GLint level,
                 GLint xoffset, GLint yoffset, GLint zoffset,
                 GLint width, GLint height, GLint depth,
                 GLsizei imageSize,
                 GLenum format, GLenum type, const void *pixels,
                 const struct gl_pixelstore_attrib *packing,
                 struct gl_texture_object *texObj,
                 struct gl_texture_image *texImage)
{
   struct intel_context *intel = intel_context(ctx);
   struct intel_texture_image *intelImage = intel_texture_image(texImage);
   GLuint dstRowStride = 0;
   drm_intel_bo *temp_bo = NULL, *dst_bo = NULL;
   unsigned int blit_x = 0, blit_y = 0;

   /* Try to do a blit upload of the subimage if the texture is
    * currently busy.
    */
   if (intelImage->mt &&
       intelImage->mt->region->tiling != I915_TILING_Y &&
       intel->gen < 6 && target == GL_TEXTURE_2D &&
       drm_intel_bo_busy(dst_bo)) {
      unsigned long pitch;
      uint32_t tiling_mode = I915_TILING_NONE;

      DBG("BLT subimage %s target %s level %d offset %d,%d %dx%d\n",
          __FUNCTION__,
          _mesa_lookup_enum_by_nr(target),
          level, xoffset, yoffset, width, height);

      pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, depth,
                                           format, type, pixels, packing,
                                           "glTexSubImage");
      if (!pixels)
         return;

      temp_bo = drm_intel_bo_alloc_tiled(intel->bufmgr,
                                         "subimage blit bo",
                                         width, height,
                                         intelImage->mt->cpp,
                                         &tiling_mode,
                                         &pitch,
                                         0);
      if (temp_bo == NULL) {
         _mesa_error(ctx, GL_OUT_OF_MEMORY, "intelTexSubImage");
         return;
      }

      if (drm_intel_gem_bo_map_gtt(temp_bo)) {
         _mesa_error(ctx, GL_OUT_OF_MEMORY, "intelTexSubImage");
         return;
      }

      texImage->Data = temp_bo->virtual;
      texImage->ImageOffsets[0] = 0;
      dstRowStride = pitch;

      intel_miptree_get_image_offset(intelImage->mt, level,
                                     intelImage->base.Face, 0,
                                     &blit_x, &blit_y);
      blit_x += xoffset;
      blit_y += yoffset;
      xoffset = 0;
      yoffset = 0;

      if (!_mesa_texstore(ctx, dims, texImage->_BaseFormat,
                          texImage->TexFormat,
                          texImage->Data,
                          xoffset, yoffset, zoffset,
                          dstRowStride,
                          texImage->ImageOffsets,
                          width, height, depth,
                          format, type, pixels, packing)) {
         _mesa_error(ctx, GL_OUT_OF_MEMORY, "intelTexSubImage");
      }

      GLboolean ret;
      unsigned int dst_pitch = intelImage->mt->region->pitch *
         intelImage->mt->cpp;

      drm_intel_gem_bo_unmap_gtt(temp_bo);
      texImage->Data = NULL;

      ret = intelEmitCopyBlit(intel,
                              intelImage->mt->cpp,
                              dstRowStride / intelImage->mt->cpp,
                              temp_bo, 0, GL_FALSE,
                              dst_pitch / intelImage->mt->cpp, dst_bo, 0,
                              intelImage->mt->region->tiling,
                              0, 0, blit_x, blit_y, width, height,
                              GL_COPY);
      assert(ret);

      drm_intel_bo_unreference(temp_bo);
      _mesa_unmap_teximage_pbo(ctx, packing);
      return;
   }

   _mesa_store_texsubimage3d(ctx, target, level,
                             xoffset, yoffset, zoffset,
                             width, height, depth,
                             format, type, pixels,
                             packing, texObj, texImage);
}


static void
intelTexSubImage3D(struct gl_context * ctx,
                   GLenum target,
                   GLint level,
                   GLint xoffset, GLint yoffset, GLint zoffset,
                   GLsizei width, GLsizei height, GLsizei depth,
                   GLenum format, GLenum type,
                   const GLvoid * pixels,
                   const struct gl_pixelstore_attrib *packing,
                   struct gl_texture_object *texObj,
                   struct gl_texture_image *texImage)
{
   intelTexSubimage(ctx, 3,
                    target, level,
                    xoffset, yoffset, zoffset,
                    width, height, depth, 0,
                    format, type, pixels, packing, texObj, texImage);
}


static void
intelTexSubImage2D(struct gl_context * ctx,
                   GLenum target,
                   GLint level,
                   GLint xoffset, GLint yoffset,
                   GLsizei width, GLsizei height,
                   GLenum format, GLenum type,
                   const GLvoid * pixels,
                   const struct gl_pixelstore_attrib *packing,
                   struct gl_texture_object *texObj,
                   struct gl_texture_image *texImage)
{
   intelTexSubimage(ctx, 2,
                    target, level,
                    xoffset, yoffset, 0,
                    width, height, 1, 0,
                    format, type, pixels, packing, texObj, texImage);
}


static void
intelTexSubImage1D(struct gl_context * ctx,
                   GLenum target,
                   GLint level,
                   GLint xoffset,
                   GLsizei width,
                   GLenum format, GLenum type,
                   const GLvoid * pixels,
                   const struct gl_pixelstore_attrib *packing,
                   struct gl_texture_object *texObj,
                   struct gl_texture_image *texImage)
{
   intelTexSubimage(ctx, 1,
                    target, level,
                    xoffset, 0, 0,
                    width, 1, 1, 0,
                    format, type, pixels, packing, texObj, texImage);
}

void
intelInitTextureSubImageFuncs(struct dd_function_table *functions)
{
   functions->TexSubImage1D = intelTexSubImage1D;
   functions->TexSubImage2D = intelTexSubImage2D;
   functions->TexSubImage3D = intelTexSubImage3D;
}