static GLboolean initialize_texture_fields(struct gl_context *ctx, struct gl_texture_object *texObj, GLint levels, GLsizei width, GLsizei height, GLsizei depth, GLenum internalFormat, gl_format texFormat) { const GLenum target = texObj->Target; const GLuint numFaces = _mesa_num_tex_faces(target); GLint level, levelWidth = width, levelHeight = height, levelDepth = depth; GLuint face; /* Set up all the texture object's gl_texture_images */ for (level = 0; level < levels; level++) { for (face = 0; face < numFaces; face++) { struct gl_texture_image *texImage = get_tex_image(ctx, texObj, face, level); if (!texImage) { _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexStorage"); return GL_FALSE; } _mesa_init_teximage_fields(ctx, texImage, levelWidth, levelHeight, levelDepth, 0, internalFormat, texFormat); } next_mipmap_level_size(target, &levelWidth, &levelHeight, &levelDepth); } return GL_TRUE; }
/** * Do actual memory allocation for glTexStorage1/2/3D(). */ static void setup_texstorage(struct gl_context *ctx, struct gl_texture_object *texObj, GLuint dims, GLsizei levels, GLenum internalFormat, GLsizei width, GLsizei height, GLsizei depth) { const GLenum target = texObj->Target; const GLuint numFaces = (target == GL_TEXTURE_CUBE_MAP) ? 6 : 1; gl_format texFormat; GLint level, levelWidth = width, levelHeight = height, levelDepth = depth; GLuint face; assert(levels > 0); assert(width > 0); assert(height > 0); assert(depth > 0); texFormat = _mesa_choose_texture_format(ctx, texObj, target, 0, internalFormat, GL_NONE, GL_NONE); /* Set up all the texture object's gl_texture_images */ for (level = 0; level < levels; level++) { for (face = 0; face < numFaces; face++) { const GLenum faceTarget = (target == GL_TEXTURE_CUBE_MAP) ? GL_TEXTURE_CUBE_MAP_POSITIVE_X + face : target; struct gl_texture_image *texImage = _mesa_get_tex_image(ctx, texObj, faceTarget, level); if (!texImage) { _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims); return; } _mesa_init_teximage_fields(ctx, target, texImage, levelWidth, levelHeight, levelDepth, 0, internalFormat, texFormat); } next_mipmap_level_size(target, &levelWidth, &levelHeight, &levelDepth); } assert(levelWidth > 0); assert(levelHeight > 0); assert(levelDepth > 0); if (!_mesa_is_proxy_texture(texObj->Target)) { /* Do actual texture memory allocation */ if (!ctx->Driver.AllocTextureStorage(ctx, texObj, levels, width, height, depth)) { /* Reset the texture images' info to zeros. * Strictly speaking, we probably don't have to do this since * generating GL_OUT_OF_MEMORY can leave things in an undefined * state but this puts things in a consistent state. */ for (level = 0; level < levels; level++) { for (face = 0; face < numFaces; face++) { struct gl_texture_image *texImage = texObj->Image[face][level]; if (texImage) { _mesa_init_teximage_fields(ctx, target, texImage, 0, 0, 0, 0, GL_NONE, MESA_FORMAT_NONE); } } } _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexStorage%uD", dims); return; } } texObj->Immutable = GL_TRUE; }