diff options
Diffstat (limited to 'src/mesa/swrast/s_readpix.c')
| -rw-r--r-- | src/mesa/swrast/s_readpix.c | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/src/mesa/swrast/s_readpix.c b/src/mesa/swrast/s_readpix.c index 4637bfb829f..5d79a20644d 100644 --- a/src/mesa/swrast/s_readpix.c +++ b/src/mesa/swrast/s_readpix.c @@ -103,8 +103,10 @@ read_depth_pixels( struct gl_context *ctx, const struct gl_pixelstore_attrib *packing ) { struct gl_framebuffer *fb = ctx->ReadBuffer; - struct gl_renderbuffer *rb = fb->_DepthBuffer; + struct gl_renderbuffer *rb = fb->Attachment[BUFFER_DEPTH].Renderbuffer; GLint j; + GLubyte *dst, *map; + int dstStride, stride; if (!rb) return; @@ -120,14 +122,24 @@ read_depth_pixels( struct gl_context *ctx, if (fast_read_depth_pixels(ctx, x, y, width, height, type, pixels, packing)) return; + dstStride = _mesa_image_row_stride(packing, width, GL_DEPTH_COMPONENT, type); + dst = (GLubyte *) _mesa_image_address2d(packing, pixels, width, height, + GL_DEPTH_COMPONENT, type, 0, 0); + + ctx->Driver.MapRenderbuffer(ctx, rb, x, y, width, height, GL_MAP_READ_BIT, + &map, &stride); + /* General case (slower) */ for (j = 0; j < height; j++, y++) { GLfloat depthValues[MAX_WIDTH]; - GLvoid *dest = _mesa_image_address2d(packing, pixels, width, height, - GL_DEPTH_COMPONENT, type, j, 0); - _swrast_read_depth_span_float(ctx, rb, width, x, y, depthValues); - _mesa_pack_depth_span(ctx, width, dest, type, depthValues, packing); + _mesa_unpack_float_z_row(rb->Format, width, map, depthValues); + _mesa_pack_depth_span(ctx, width, dst, type, depthValues, packing); + + dst += dstStride; + map += stride; } + + ctx->Driver.UnmapRenderbuffer(ctx, rb); } |