- {
- const GLint width = texImage->Width;
- const GLint height = texImage->Height;
- const GLint depth = texImage->Depth;
- GLint img, row;
- for (img = 0; img < depth; img++) {
- for (row = 0; row < height; row++) {
- /* compute destination address in client memory */
- GLvoid *dest = _mesa_image_address( &ctx->Pack, pixels,
- width, height, format, type,
- img, row, 0);
- assert(dest);
-
- if (format == GL_COLOR_INDEX) {
- GLuint indexRow[MAX_WIDTH];
- GLint col;
- /* Can't use FetchTexel here because that returns RGBA */
- if (texImage->TexFormat->IndexBits == 8) {
- const GLubyte *src = (const GLubyte *) texImage->Data;
- for (col = 0; col < width; col++) {
- indexRow[col] = src[texImage->Width *
- (img * texImage->Height + row) + col];
- }
- }
- else if (texImage->TexFormat->IndexBits == 16) {
- const GLushort *src = (const GLushort *) texImage->Data;
- for (col = 0; col < width; col++) {
- indexRow[col] = src[texImage->Width *
- (img * texImage->Height + row) + col];
- }
- }
- else {
- _mesa_problem(ctx,
- "Color index problem in _mesa_GetTexImage");
- return;
- }
- _mesa_pack_index_span(ctx, width, type, dest,
- indexRow, &ctx->Pack,
- 0 /* no image transfer */);
- }
- else if (format == GL_DEPTH_COMPONENT) {
- GLfloat depthRow[MAX_WIDTH];
- GLint col;
- for (col = 0; col < width; col++) {
- (*texImage->FetchTexelf)(texImage, col, row, img,
- depthRow + col);
- }
- _mesa_pack_depth_span(ctx, width, dest, type,
- depthRow, &ctx->Pack);
- }
- else if (format == GL_YCBCR_MESA) {
- /* No pixel transfer */
- const GLint rowstride = texImage->RowStride;
- MEMCPY(dest,
- (const GLushort *) texImage->Data + row * rowstride,
- width * sizeof(GLushort));
- /* check for byte swapping */
- if ((texImage->TexFormat->MesaFormat == MESA_FORMAT_YCBCR
- && type == GL_UNSIGNED_SHORT_8_8_REV_MESA) ||
- (texImage->TexFormat->MesaFormat == MESA_FORMAT_YCBCR_REV
- && type == GL_UNSIGNED_SHORT_8_8_MESA)) {
- if (!ctx->Pack.SwapBytes)
- _mesa_swap2((GLushort *) dest, width);
- }
- else if (ctx->Pack.SwapBytes) {
- _mesa_swap2((GLushort *) dest, width);
- }
- }
- else {
- /* general case: convert row to RGBA format */
- GLfloat rgba[MAX_WIDTH][4];
- GLint col;
- for (col = 0; col < width; col++) {
- (*texImage->FetchTexelf)(texImage, col, row, img, rgba[col]);
- }
- _mesa_pack_rgba_span_float(ctx, width,
- (const GLfloat (*)[4]) rgba,
- format, type, dest, &ctx->Pack,
- 0 /* no image transfer */);
- } /* format */
- } /* row */
- } /* img */
+
+
+/**
+ * Check if the given texture image is bound to any framebuffer objects
+ * and update/invalidate them.
+ * XXX We're only checking the currently bound framebuffer object for now.
+ * In the future, perhaps struct gl_texture_image should have a pointer (or
+ * list of pointers (yikes)) to the gl_framebuffer(s) which it's bound to.
+ */
+static void
+update_fbo_texture(GLcontext *ctx, struct gl_texture_object *texObj,
+ GLuint face, GLuint level)
+{
+ if (ctx->DrawBuffer->Name) {
+ GLuint i;
+ for (i = 0; i < BUFFER_COUNT; i++) {
+ struct gl_renderbuffer_attachment *att =
+ ctx->DrawBuffer->Attachment + i;
+ if (att->Type == GL_TEXTURE &&
+ att->Texture == texObj &&
+ att->TextureLevel == level &&
+ att->CubeMapFace == face) {
+ ASSERT(att->Texture->Image[att->CubeMapFace][att->TextureLevel]);
+ /* Tell driver about the new renderbuffer texture */
+ ctx->Driver.RenderTexture(ctx, ctx->DrawBuffer, att);
+ }
+ }