diff options
| author | emersion <contact@emersion.fr> | 2018-06-23 14:02:43 +0100 |
|---|---|---|
| committer | emersion <contact@emersion.fr> | 2018-06-30 22:18:03 +0100 |
| commit | 2b9cbaddf3d285ce439bd5da9f19995a0ddbac3a (patch) | |
| tree | 19ef4f0d3f1acf4f863e311e561dad3de0520195 /render/gles2 | |
| parent | bd8be19b792797925f5cca14049a5ab2d0f6d06c (diff) | |
screencopy: add support for frame flags
Diffstat (limited to 'render/gles2')
| -rw-r--r-- | render/gles2/renderer.c | 28 |
1 files changed, 20 insertions, 8 deletions
diff --git a/render/gles2/renderer.c b/render/gles2/renderer.c index 05426fa9..0c57bfa1 100644 --- a/render/gles2/renderer.c +++ b/render/gles2/renderer.c @@ -250,9 +250,9 @@ static int gles2_get_dmabuf_modifiers(struct wlr_renderer *wlr_renderer, } static bool gles2_read_pixels(struct wlr_renderer *wlr_renderer, - enum wl_shm_format wl_fmt, uint32_t stride, uint32_t width, - uint32_t height, uint32_t src_x, uint32_t src_y, uint32_t dst_x, - uint32_t dst_y, void *data) { + enum wl_shm_format wl_fmt, uint32_t *flags, uint32_t stride, + uint32_t width, uint32_t height, uint32_t src_x, uint32_t src_y, + uint32_t dst_x, uint32_t dst_y, void *data) { gles2_get_renderer_in_context(wlr_renderer); const struct wlr_gles2_pixel_format *fmt = get_gles2_format_from_wl(wl_fmt); @@ -266,12 +266,24 @@ static bool gles2_read_pixels(struct wlr_renderer *wlr_renderer, // Make sure any pending drawing is finished before we try to read it glFinish(); - // Unfortunately GLES2 doesn't support GL_PACK_*, so we have to read - // the lines out row by row unsigned char *p = data + dst_y * stride; - for (size_t i = src_y; i < src_y + height; ++i) { - glReadPixels(src_x, src_y + height - i - 1, width, 1, fmt->gl_format, - fmt->gl_type, p + i * stride + dst_x * fmt->bpp / 8); + uint32_t pack_stride = width * fmt->bpp / 8; + if (pack_stride == stride && dst_x == 0 && flags != NULL) { + // Under these particular conditions, we can read the pixels with only + // one glReadPixels call + glReadPixels(src_x, src_y, width, height, fmt->gl_format, + fmt->gl_type, p); + *flags = WLR_RENDERER_READ_PIXELS_Y_INVERT; + } else { + // Unfortunately GLES2 doesn't support GL_PACK_*, so we have to read + // the lines out row by row + for (size_t i = src_y; i < src_y + height; ++i) { + glReadPixels(src_x, src_y + height - i - 1, width, 1, fmt->gl_format, + fmt->gl_type, p + i * stride + dst_x * fmt->bpp / 8); + } + if (flags != NULL) { + *flags = 0; + } } POP_GLES2_DEBUG; |