diff options
author | emersion <contact@emersion.fr> | 2018-01-29 23:24:09 +0100 |
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committer | emersion <contact@emersion.fr> | 2018-01-29 23:24:09 +0100 |
commit | 51c22d39a4a1a3c4ecfe39ee3df90ba7e66633af (patch) | |
tree | b9fd9fd6fddc8a869f3500bf92944b47c01c578c /render | |
parent | 2cc989e09716eed5974dc9a76b7b6dbee9c3d730 (diff) | |
parent | ed5b1fdedd775a7acec3d6814cc2ac007e34fd29 (diff) |
Merge remote-tracking branch 'upstream/master' into output-damage
Diffstat (limited to 'render')
-rw-r--r-- | render/gles2/pixel_format.c | 9 | ||||
-rw-r--r-- | render/gles2/renderer.c | 36 | ||||
-rw-r--r-- | render/wlr_renderer.c | 14 |
3 files changed, 44 insertions, 15 deletions
diff --git a/render/gles2/pixel_format.c b/render/gles2/pixel_format.c index a0b9d09f..a544077b 100644 --- a/render/gles2/pixel_format.c +++ b/render/gles2/pixel_format.c @@ -2,7 +2,10 @@ #include <GLES2/gl2ext.h> #include "render/gles2.h" -// Adapted from weston +/* +* The wayland formats are little endian while the GL formats are big endian, +* so WL_SHM_FORMAT_ARGB8888 is actually compatible with GL_BGRA_EXT. +*/ struct pixel_format formats[] = { { .wl_format = WL_SHM_FORMAT_ARGB8888, @@ -22,12 +25,16 @@ struct pixel_format formats[] = { }, { .wl_format = WL_SHM_FORMAT_XBGR8888, + .depth = 24, + .bpp = 32, .gl_format = GL_RGBA, .gl_type = GL_UNSIGNED_BYTE, .shader = &shaders.rgbx }, { .wl_format = WL_SHM_FORMAT_ABGR8888, + .depth = 32, + .bpp = 32, .gl_format = GL_RGBA, .gl_type = GL_UNSIGNED_BYTE, .shader = &shaders.rgba diff --git a/render/gles2/renderer.c b/render/gles2/renderer.c index b2412f79..bdb62ff3 100644 --- a/render/gles2/renderer.c +++ b/render/gles2/renderer.c @@ -222,20 +222,33 @@ static bool wlr_gles2_buffer_is_drm(struct wlr_renderer *wlr_renderer, EGL_TEXTURE_FORMAT, &format); } -static void rgba_to_argb(uint32_t *data, size_t height, size_t stride) { - size_t n = height*stride/4; - for (size_t i = 0; i < n; ++i) { - uint32_t v = data[i]; - uint32_t rgb = (v & 0xffffff00) >> 8; - uint32_t a = v & 0x000000ff; - data[i] = rgb | (a << 24); +static bool wlr_gles2_read_pixels(struct wlr_renderer *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) { + const struct pixel_format *fmt = gl_format_for_wl_format(wl_fmt); + if (fmt == NULL) { + wlr_log(L_ERROR, "Cannot read pixels: unsupported pixel format"); + return false; + } + + // 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); } + + return true; } -static void wlr_gles2_read_pixels(struct wlr_renderer *wlr_renderer, - int x, int y, int width, int height, void *out_data) { - glReadPixels(x, y, width, height, GL_RGBA, GL_UNSIGNED_BYTE, out_data); - rgba_to_argb(out_data, height, width*4); +static bool wlr_gles2_format_supported(struct wlr_renderer *r, + enum wl_shm_format wl_fmt) { + return gl_format_for_wl_format(wl_fmt); } static struct wlr_renderer_impl wlr_renderer_impl = { @@ -250,6 +263,7 @@ static struct wlr_renderer_impl wlr_renderer_impl = { .formats = wlr_gles2_formats, .buffer_is_drm = wlr_gles2_buffer_is_drm, .read_pixels = wlr_gles2_read_pixels, + .format_supported = wlr_gles2_format_supported, }; struct wlr_renderer *wlr_gles2_renderer_create(struct wlr_backend *backend) { diff --git a/render/wlr_renderer.c b/render/wlr_renderer.c index ba7d4b74..b60a3f73 100644 --- a/render/wlr_renderer.c +++ b/render/wlr_renderer.c @@ -61,7 +61,15 @@ bool wlr_renderer_buffer_is_drm(struct wlr_renderer *r, return r->impl->buffer_is_drm(r, buffer); } -void wlr_renderer_read_pixels(struct wlr_renderer *r, int x, int y, - int width, int height, void *out_data) { - r->impl->read_pixels(r, x, y, width, height, out_data); +bool wlr_renderer_read_pixels(struct wlr_renderer *r, enum wl_shm_format 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) { + return r->impl->read_pixels(r, fmt, stride, width, height, src_x, src_y, + dst_x, dst_y, data); +} + +bool wlr_renderer_format_supported(struct wlr_renderer *r, + enum wl_shm_format fmt) { + return r->impl->format_supported(r, fmt); } |