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renderer-gl: Support more shm RGB formats

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Some applications, e.g. Chromium browser, may provide ABGR format buf.

Tested with gstreamer 1.22.8:
gst-launch-1.0 videotestsrc ! 'video/x-raw,format=RGB' ! waylandsink
gst-launch-1.0 videotestsrc ! 'video/x-raw,format=BGR' ! waylandsink
gst-launch-1.0 videotestsrc ! 'video/x-raw,format=ARGB' ! waylandsink
gst-launch-1.0 videotestsrc ! 'video/x-raw,format=xRGB' ! waylandsink
gst-launch-1.0 videotestsrc ! 'video/x-raw,format=ABGR' ! waylandsink
gst-launch-1.0 videotestsrc ! 'video/x-raw,format=xBGR' ! waylandsink
gst-launch-1.0 videotestsrc ! 'video/x-raw,format=RGBA' ! waylandsink
gst-launch-1.0 videotestsrc ! 'video/x-raw,format=RGBx' ! waylandsink
gst-launch-1.0 videotestsrc ! 'video/x-raw,format=BGRA' ! waylandsink
gst-launch-1.0 videotestsrc ! 'video/x-raw,format=BGRx' ! waylandsink

Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
This commit is contained in:
Jeffy Chen 2022-07-07 11:09:23 +08:00
parent be43297679
commit 3b7cfdb561
6 changed files with 95 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
libweston/pixel-formats.c
View File

@ -53,11 +53,14 @@
#define GL_INTERNALFORMAT(fmt) .gl_internalformat = (fmt)
#define GL_FORMAT(fmt) .gl_format = (fmt)
#define GL_TYPE(type) .gl_type = (type)
#define GL_CHANNEL_ORDER(order) \
.gl_channel_order = (SHADER_CHANNEL_ORDER_ ## order)
#define SAMPLER_TYPE(type) .sampler_type = (type)
#else
#define GL_INTERNALFORMAT(fmt) .gl_internalformat = 0
#define GL_FORMAT(fmt) .gl_format = 0
#define GL_TYPE(type) .gl_type = 0
#define GL_CHANNEL_ORDER(order) .gl_channel_order = 0
#define SAMPLER_TYPE(type) .sampler_type = 0
#endif
@ -226,6 +229,9 @@ static const struct pixel_format_info pixel_format_table[] = {
DRM_FORMAT(RGB888),
BITS_RGBA_FIXED(8, 8, 8, 0),
.bpp = 24,
GL_FORMAT(GL_RGB),
GL_TYPE(GL_UNSIGNED_BYTE),
GL_CHANNEL_ORDER(BGRA),
},
{
DRM_FORMAT(BGR888),
@ -292,6 +298,9 @@ static const struct pixel_format_info pixel_format_table[] = {
DRM_FORMAT(RGBX8888),
BITS_RGBA_FIXED(8, 8, 8, 0),
.bpp = 32,
GL_FORMAT(GL_RGBA),
GL_TYPE(GL_UNSIGNED_BYTE),
GL_CHANNEL_ORDER(ABGR),
#if __BYTE_ORDER == __LITTLE_ENDIAN
PIXMAN_FMT(r8g8b8x8),
#else
@ -303,6 +312,9 @@ static const struct pixel_format_info pixel_format_table[] = {
BITS_RGBA_FIXED(8, 8, 8, 8),
.bpp = 32,
.opaque_substitute = DRM_FORMAT_RGBX8888,
GL_FORMAT(GL_RGBA),
GL_TYPE(GL_UNSIGNED_BYTE),
GL_CHANNEL_ORDER(ABGR),
#if __BYTE_ORDER == __LITTLE_ENDIAN
PIXMAN_FMT(r8g8b8a8),
#else
@ -313,6 +325,9 @@ static const struct pixel_format_info pixel_format_table[] = {
DRM_FORMAT(BGRX8888),
BITS_RGBA_FIXED(8, 8, 8, 0),
.bpp = 32,
GL_FORMAT(GL_RGBA),
GL_TYPE(GL_UNSIGNED_BYTE),
GL_CHANNEL_ORDER(ARGB),
#if __BYTE_ORDER == __LITTLE_ENDIAN
PIXMAN_FMT(b8g8r8x8),
#else
@ -324,6 +339,9 @@ static const struct pixel_format_info pixel_format_table[] = {
BITS_RGBA_FIXED(8, 8, 8, 8),
.bpp = 32,
.opaque_substitute = DRM_FORMAT_BGRX8888,
GL_FORMAT(GL_RGBA),
GL_TYPE(GL_UNSIGNED_BYTE),
GL_CHANNEL_ORDER(ARGB),
#if __BYTE_ORDER == __LITTLE_ENDIAN
PIXMAN_FMT(b8g8r8a8),
#else

13
libweston/pixel-formats.h
View File

@ -28,6 +28,14 @@
#include <stdbool.h>
#include <pixman.h>
/* Keep the following in sync with fragment.glsl. */
enum gl_channel_order {
SHADER_CHANNEL_ORDER_RGBA = 0,
SHADER_CHANNEL_ORDER_BGRA,
SHADER_CHANNEL_ORDER_ARGB,
SHADER_CHANNEL_ORDER_ABGR,
};
/**
* Contains information about pixel formats, mapping format codes from
* wl_shm and drm_fourcc.h (which are deliberately identical, but for the
@ -78,6 +86,11 @@ struct pixel_format_info {
/** GL data type, if data can be natively/directly uploaded. */
int gl_type;
/** This enumeration tells the resulting order of the color channels
* when the DRM formatted pixel data is read with the given gl_format
* and gl_type. */
enum gl_channel_order gl_channel_order;
/** Pixman data type, if it agrees exactly with the wl_shm format */
pixman_format_code_t pixman_format;

29
libweston/renderer-gl/fragment.glsl
View File

@ -54,6 +54,12 @@
#define SHADER_COLOR_MAPPING_3DLUT 1
#define SHADER_COLOR_MAPPING_MATRIX 2
/* enum gl_channel_order */
#define SHADER_CHANNEL_ORDER_RGBA 0
#define SHADER_CHANNEL_ORDER_BGRA 1
#define SHADER_CHANNEL_ORDER_ARGB 2
#define SHADER_CHANNEL_ORDER_ABGR 3
#if DEF_VARIANT == SHADER_VARIANT_EXTERNAL
#extension GL_OES_EGL_image_external : require
#endif
@ -78,6 +84,7 @@ compile_const int c_variant = DEF_VARIANT;
compile_const int c_color_pre_curve = DEF_COLOR_PRE_CURVE;
compile_const int c_color_mapping = DEF_COLOR_MAPPING;
compile_const int c_color_post_curve = DEF_COLOR_POST_CURVE;
compile_const int c_color_channel_order = DEF_COLOR_CHANNEL_ORDER;
compile_const bool c_input_is_premult = DEF_INPUT_IS_PREMULT;
compile_const bool c_green_tint = DEF_GREEN_TINT;
@ -158,13 +165,27 @@ sample_input_texture()
if (c_variant == SHADER_VARIANT_SOLID)
return unicolor;
if (c_variant == SHADER_VARIANT_RGBA ||
c_variant == SHADER_VARIANT_EXTERNAL) {
if (c_variant == SHADER_VARIANT_EXTERNAL)
return texture2D(tex, v_texcoord);
}
if (c_variant == SHADER_VARIANT_RGBA ||
c_variant == SHADER_VARIANT_RGBX) {
vec4 color;
if (c_color_channel_order == SHADER_CHANNEL_ORDER_BGRA)
color = texture2D(tex, v_texcoord).bgra;
else if (c_color_channel_order == SHADER_CHANNEL_ORDER_ARGB)
color = texture2D(tex, v_texcoord).gbar;
else if (c_color_channel_order == SHADER_CHANNEL_ORDER_ABGR)
color = texture2D(tex, v_texcoord).abgr;
else
color = texture2D(tex, v_texcoord);
if (c_variant == SHADER_VARIANT_RGBX)
return vec4(texture2D(tex, v_texcoord).rgb, 1.0);
color.a = 1.0;
return color;
}
/* Requires conversion to RGBA */

4
libweston/renderer-gl/gl-renderer-internal.h
View File

@ -99,11 +99,13 @@ struct gl_shader_requirements
unsigned color_pre_curve:2; /* enum gl_shader_color_curve */
unsigned color_mapping:2; /* enum gl_shader_color_mapping */
unsigned color_post_curve:2; /* enum gl_shader_color_curve */
unsigned color_channel_order:2; /* enum gl_channel_order */
/*
* The total size of all bitfields plus pad_bits_ must fill up exactly
* how many bytes the compiler allocates for them together.
*/
unsigned pad_bits_:18;
unsigned pad_bits_:16;
};
static_assert(sizeof(struct gl_shader_requirements) ==
4 /* total bitfield size in bytes */,

11
libweston/renderer-gl/gl-renderer.c
View File

@ -180,6 +180,7 @@ struct gl_buffer_state {
int pitch; /* plane 0 pitch in pixels */
GLenum gl_pixel_type;
GLenum gl_format[3];
enum gl_channel_order gl_channel_order;
int offset[3]; /* per-plane pitch in bytes */
EGLImageKHR images[3];
@ -1134,6 +1135,7 @@ gl_shader_config_set_input_textures(struct gl_shader_config *sconf,
int i;
sconf->req.variant = gb->shader_variant;
sconf->req.color_channel_order = gb->gl_channel_order;
sconf->req.input_is_premult =
gl_shader_texture_variant_can_be_premult(gb->shader_variant);
@ -2697,6 +2699,7 @@ gl_renderer_attach_shm(struct weston_surface *es, struct weston_buffer *buffer)
gb->shader_variant = shader_variant;
ARRAY_COPY(gb->offset, offset);
ARRAY_COPY(gb->gl_format, gl_format);
gb->gl_channel_order = buffer->pixel_format->gl_channel_order;
gb->gl_pixel_type = gl_pixel_type;
gb->needs_full_upload = true;
@ -4271,6 +4274,14 @@ gl_renderer_display_create(struct weston_compositor *ec,
if (gl_renderer_setup(ec) < 0)
goto fail_with_error;
wl_display_add_shm_format(ec->wl_display, WL_SHM_FORMAT_XBGR8888);
wl_display_add_shm_format(ec->wl_display, WL_SHM_FORMAT_ABGR8888);
wl_display_add_shm_format(ec->wl_display, WL_SHM_FORMAT_RGBX8888);
wl_display_add_shm_format(ec->wl_display, WL_SHM_FORMAT_RGBA8888);
wl_display_add_shm_format(ec->wl_display, WL_SHM_FORMAT_BGRX8888);
wl_display_add_shm_format(ec->wl_display, WL_SHM_FORMAT_BGRA8888);
wl_display_add_shm_format(ec->wl_display, WL_SHM_FORMAT_RGB888);
wl_display_add_shm_format(ec->wl_display, WL_SHM_FORMAT_BGR888);
wl_display_add_shm_format(ec->wl_display, WL_SHM_FORMAT_RGB565);
wl_display_add_shm_format(ec->wl_display, WL_SHM_FORMAT_YUV420);
wl_display_add_shm_format(ec->wl_display, WL_SHM_FORMAT_YUV444);

25
libweston/renderer-gl/gl-shaders.c
View File

@ -42,6 +42,7 @@
#include "gl-renderer.h"
#include "gl-renderer-internal.h"
#include "pixel-formats.h"
#include "shared/helpers.h"
#include "shared/timespec-util.h"
@ -153,6 +154,21 @@ gl_shader_color_mapping_to_string(enum gl_shader_color_mapping kind)
return "!?!?"; /* never reached */
}
static const char *
gl_shader_color_order_to_string(enum gl_channel_order kind)
{
switch (kind) {
#define CASERET(x) case x: return #x;
CASERET(SHADER_CHANNEL_ORDER_RGBA)
CASERET(SHADER_CHANNEL_ORDER_BGRA)
CASERET(SHADER_CHANNEL_ORDER_ARGB)
CASERET(SHADER_CHANNEL_ORDER_ABGR)
#undef CASERET
}
return "!?!?"; /* never reached */
}
static void
dump_program_with_line_numbers(int count, const char **sources)
{
@ -218,12 +234,13 @@ create_shader_description_string(const struct gl_shader_requirements *req)
int size;
char *str;
size = asprintf(&str, "%s %s %s %s %s %cinput_is_premult %cgreen",
size = asprintf(&str, "%s %s %s %s %s %s %cinput_is_premult %cgreen",
gl_shader_texcoord_input_to_string(req->texcoord_input),
gl_shader_texture_variant_to_string(req->variant),
gl_shader_color_curve_to_string(req->color_pre_curve),
gl_shader_color_mapping_to_string(req->color_mapping),
gl_shader_color_curve_to_string(req->color_post_curve),
gl_shader_color_order_to_string(req->color_channel_order),
req->input_is_premult ? '+' : '-',
req->green_tint ? '+' : '-');
if (size < 0)
@ -254,6 +271,10 @@ create_fragment_shader_config_string(const struct gl_shader_requirements *req)
int size;
char *str;
/* EXTERNAL can only be used with identity swizzle */
assert(req->variant != SHADER_VARIANT_EXTERNAL ||
req->color_channel_order == SHADER_CHANNEL_ORDER_RGBA);
size = asprintf(&str,
"#define DEF_GREEN_TINT %s\n"
"#define DEF_INPUT_IS_PREMULT %s\n"
@ -261,6 +282,7 @@ create_fragment_shader_config_string(const struct gl_shader_requirements *req)
"#define DEF_COLOR_PRE_CURVE %s\n"
"#define DEF_COLOR_MAPPING %s\n"
"#define DEF_COLOR_POST_CURVE %s\n"
"#define DEF_COLOR_CHANNEL_ORDER %s\n"
"#define DEF_VARIANT %s\n",
req->green_tint ? "true" : "false",
req->input_is_premult ? "true" : "false",
@ -268,6 +290,7 @@ create_fragment_shader_config_string(const struct gl_shader_requirements *req)
gl_shader_color_curve_to_string(req->color_pre_curve),
gl_shader_color_mapping_to_string(req->color_mapping),
gl_shader_color_curve_to_string(req->color_post_curve),
gl_shader_color_order_to_string(req->color_channel_order),
gl_shader_texture_variant_to_string(req->variant));
if (size < 0)
return NULL;