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wayland: Use existing EGL_TEXTURE_FORMAT for querying wl_buffer texture format

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We also reuse EGL_TEXTURE_RGBA and EGL_TEXTURE_RGB, adding only the new
planar YUV texture formats: EGL_TEXTURE_Y_U_V_WL, EGL_TEXTURE_Y_UV_WL and
EGL_TEXTURE_Y_XUXV_WL.

Signed-off-by: Kristian Høgsberg <krh@bitplanet.net>
This commit is contained in:
Kristian Høgsberg
2012-07-19 08:54:05 -04:00
parent e1b45a3c06
commit e23bfdb329
4 changed files with 46 additions and 55 deletions
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59
docs/WL_bind_wayland_display.spec
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@@ -70,18 +70,11 @@ New Tokens
EGL_WAYLAND_PLANE_WL 0x31D6
Possible values for EGL_TEXTURE_FORMAT:
Accepted as a eglQueryWaylandBufferWL attribute:
EGL_WAYLAND_BUFFER_COMPONENTS_WL 0x31D7
Possible values for EGL_WAYLAND_BUFFER_COMPONENTS_WL:
EGL_WAYLAND_BUFFER_RGB_WL 0x31D8
EGL_WAYLAND_BUFFER_RGBA_WL 0x31D9
EGL_WAYLAND_BUFFER_Y_U_V_WL 0x31Da
EGL_WAYLAND_BUFFER_Y_UV_WL 0x31Db
EGL_WAYLAND_BUFFER_Y_XUXV_WL 0x31Dc
EGL_TEXTURE_Y_U_V_WL 0x31D7
EGL_TEXTURE_Y_UV_WL 0x31D8
EGL_TEXTURE_Y_XUXV_WL 0x31D9
Additions to the EGL 1.4 Specification:
@@ -106,48 +99,47 @@ Additions to the EGL 1.4 Specification:
YUV formats. Depending on the exact YUV format in use, the
compositor will have to create one or more EGLImages for the
various planes. The eglQueryWaylandBufferWL function should be
used to first query the wl_buffer components using
EGL_WAYLAND_BUFFER_COMPONENTS_WL as the attribute. If the
wl_buffer object is not an EGL wl_buffer (wl_shm and other wayland
extensions can create wl_buffer objects), this query will return
EGL_FALSE. In that case the wl_buffer can not be used with EGL
and the compositor should have another way to get the buffer
used to first query the wl_buffer texture format using
EGL_TEXTURE_FORMAT as the attribute. If the wl_buffer object is
not an EGL wl_buffer (wl_shm and other wayland extensions can
create wl_buffer objects of different types), this query will
return EGL_FALSE. In that case the wl_buffer can not be used with
EGL and the compositor should have another way to get the buffer
contents.
If eglQueryWaylandBufferWL succeeds, the returned value will be
one of EGL_WAYLAND_BUFFER_RGB_WL, EGL_WAYLAND_BUFFER_RGBA_WL,
EGL_WAYLAND_BUFFER_Y_U_V_WL, EGL_WAYLAND_BUFFER_Y_UV_WL,
EGL_WAYLAND_BUFFER_Y_XUXV_WL. The value returned describes how
many EGLImages must be used, which components will be sampled from
each EGLImage and how they map to rgba components in the shader.
The naming conventions separates planes by _ and within each
plane, the order or R, G, B, A, Y, U, and V indicates how those
components map to the rgba value returned by the sampler. X
indicates that the corresponding component in the rgba value isn't
used.
one of EGL_TEXTURE_RGB, EGL_TEXTURE_RGBA, EGL_TEXTURE_Y_U_V_WL,
EGL_TEXTURE_Y_UV_WL, EGL_TEXTURE_Y_XUXV_WL. The value returned
describes how many EGLImages must be used, which components will
be sampled from each EGLImage and how they map to rgba components
in the shader. The naming conventions separates planes by _ and
within each plane, the order or R, G, B, A, Y, U, and V indicates
how those components map to the rgba value returned by the
sampler. X indicates that the corresponding component in the rgba
value isn't used.
RGB and RGBA buffer types:
EGL_WAYLAND_BUFFER_RGB_WL
EGL_TEXTURE_RGB
One plane, samples RGB from the texture to rgb in the
shader. Alpha channel is not valid.
EGL_WAYLAND_BUFFER_RGBA_WL 0x31D9
EGL_TEXTURE_RGBA
One plane, samples RGBA from the texture to rgba in the
shader.
YUV buffer types:
EGL_WAYLAND_BUFFER_Y_U_V_WL 0x31Da
EGL_TEXTURE_Y_U_V_WL
Three planes, samples Y from the first plane to r in
the shader, U from the second plane to r, and V from
the third plane to r.
EGL_WAYLAND_BUFFER_Y_UV_WL 0x31Db
EGL_TEXTURE_Y_UV_WL
Two planes, samples Y from the first plane to r in
the shader, U and V from the second plane to rg.
EGL_WAYLAND_BUFFER_Y_XUXV_WL 0x31Dc
EGL_TEXTURE_Y_XUXV_WL
Two planes, samples Y from the first plane to r in
the shader, U and V from the second plane to g and a.
@@ -174,3 +166,6 @@ Revision History
Version 3, July 10, 2012
Add eglQueryWaylandBufferWL and the various buffer
formats. (Kristian Høgsberg)
Version 4, July 19, 2012
Use EGL_TEXTURE_FORMAT, EGL_TEXTURE_RGB, and EGL_TEXTURE_RGBA,
and just define the new YUV texture formats. (Kristian Høgsberg)

14
include/EGL/eglmesaext.h
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@@ -112,16 +112,12 @@ typedef EGLDisplay (EGLAPIENTRYP PFNEGLGETDRMDISPLAYMESA) (int fd);
#ifndef EGL_WL_bind_wayland_display
#define EGL_WL_bind_wayland_display 1
#define EGL_WAYLAND_BUFFER_WL 0x31D5 /* eglCreateImageKHR target */
#define EGL_WAYLAND_PLANE_WL 0x31D6 /* eglCreateImageKHR target */
#define EGL_WAYLAND_BUFFER_WL 0x31D5 /* eglCreateImageKHR target */
#define EGL_WAYLAND_PLANE_WL 0x31D6 /* eglCreateImageKHR target */
#define EGL_WAYLAND_BUFFER_COMPONENTS_WL 0x31D7 /* eglQueryWaylandBufferWL attribute */
#define EGL_WAYLAND_BUFFER_RGB_WL 0x31D8
#define EGL_WAYLAND_BUFFER_RGBA_WL 0x31D9
#define EGL_WAYLAND_BUFFER_Y_U_V_WL 0x31Da
#define EGL_WAYLAND_BUFFER_Y_UV_WL 0x31Db
#define EGL_WAYLAND_BUFFER_Y_XUXV_WL 0x31Dc
#define EGL_TEXTURE_Y_U_V_WL 0x31D7
#define EGL_TEXTURE_Y_UV_WL 0x31D8
#define EGL_TEXTURE_Y_XUXV_WL 0x31D9
struct wl_display;
struct wl_buffer;

22
src/egl/drivers/dri2/egl_dri2.c
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@@ -1071,42 +1071,42 @@ static const struct wl_drm_format_descriptor {
int cpp;
} planes[3];
} wl_drm_formats[] = {
{ WL_DRM_FORMAT_ARGB8888, EGL_WAYLAND_BUFFER_RGBA_WL, 1,
{ WL_DRM_FORMAT_ARGB8888, EGL_TEXTURE_RGBA, 1,
{ { 0, 0, 0, __DRI_IMAGE_FORMAT_ARGB8888, 4 }, } },
{ WL_DRM_FORMAT_XRGB8888, EGL_WAYLAND_BUFFER_RGB_WL, 1,
{ WL_DRM_FORMAT_XRGB8888, EGL_TEXTURE_RGB, 1,
{ { 0, 0, 0, __DRI_IMAGE_FORMAT_XRGB8888, 4 }, } },
{ WL_DRM_FORMAT_YUV410, EGL_WAYLAND_BUFFER_Y_U_V_WL, 3,
{ WL_DRM_FORMAT_YUV410, EGL_TEXTURE_Y_U_V_WL, 3,
{ { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
{ 1, 2, 2, __DRI_IMAGE_FORMAT_R8, 1 },
{ 2, 2, 2, __DRI_IMAGE_FORMAT_R8, 1 } } },
{ WL_DRM_FORMAT_YUV411, EGL_WAYLAND_BUFFER_Y_U_V_WL, 3,
{ WL_DRM_FORMAT_YUV411, EGL_TEXTURE_Y_U_V_WL, 3,
{ { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
{ 1, 2, 0, __DRI_IMAGE_FORMAT_R8, 1 },
{ 2, 2, 0, __DRI_IMAGE_FORMAT_R8, 1 } } },
{ WL_DRM_FORMAT_YUV420, EGL_WAYLAND_BUFFER_Y_U_V_WL, 3,
{ WL_DRM_FORMAT_YUV420, EGL_TEXTURE_Y_U_V_WL, 3,
{ { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
{ 1, 1, 1, __DRI_IMAGE_FORMAT_R8, 1 },
{ 2, 1, 1, __DRI_IMAGE_FORMAT_R8, 1 } } },
{ WL_DRM_FORMAT_YUV422, EGL_WAYLAND_BUFFER_Y_U_V_WL, 3,
{ WL_DRM_FORMAT_YUV422, EGL_TEXTURE_Y_U_V_WL, 3,
{ { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
{ 1, 1, 0, __DRI_IMAGE_FORMAT_R8, 1 },
{ 2, 1, 0, __DRI_IMAGE_FORMAT_R8, 1 } } },
{ WL_DRM_FORMAT_YUV444, EGL_WAYLAND_BUFFER_Y_U_V_WL, 3,
{ WL_DRM_FORMAT_YUV444, EGL_TEXTURE_Y_U_V_WL, 3,
{ { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
{ 1, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
{ 2, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 } } },
{ WL_DRM_FORMAT_NV12, EGL_WAYLAND_BUFFER_Y_UV_WL, 2,
{ WL_DRM_FORMAT_NV12, EGL_TEXTURE_Y_UV_WL, 2,
{ { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
{ 1, 1, 1, __DRI_IMAGE_FORMAT_GR88, 2 } } },
{ WL_DRM_FORMAT_NV16, EGL_WAYLAND_BUFFER_Y_UV_WL, 2,
{ WL_DRM_FORMAT_NV16, EGL_TEXTURE_Y_UV_WL, 2,
{ { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
{ 1, 1, 0, __DRI_IMAGE_FORMAT_GR88, 2 } } },
@@ -1118,7 +1118,7 @@ static const struct wl_drm_format_descriptor {
* texture sampler interpolate the Y components correctly when
* sampling from plane 0, and interpolate U and V correctly when
* sampling from plane 1. */
{ WL_DRM_FORMAT_YUYV, EGL_WAYLAND_BUFFER_Y_XUXV_WL, 2,
{ WL_DRM_FORMAT_YUYV, EGL_TEXTURE_Y_XUXV_WL, 2,
{ { 0, 0, 0, __DRI_IMAGE_FORMAT_GR88, 2 },
{ 0, 1, 0, __DRI_IMAGE_FORMAT_ARGB8888, 4 } } }
};
@@ -1414,7 +1414,7 @@ dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
return EGL_FALSE;
format = buffer->driver_format;
if (attribute == EGL_WAYLAND_BUFFER_COMPONENTS_WL) {
if (attribute == EGL_TEXTURE_FORMAT) {
*value = format->components;
return EGL_TRUE;
}

6
src/gallium/state_trackers/egl/common/egl_g3d_api.c
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@@ -888,13 +888,13 @@ egl_g3d_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *dpy,
if (!wayland_buffer_is_drm(&buffer->buffer))
return EGL_FALSE;
if (attribute == EGL_WAYLAND_BUFFER_COMPONENTS_WL) {
if (attribute == EGL_TEXTURE_FORMAT) {
switch (resource->format) {
case PIPE_FORMAT_B8G8R8A8_UNORM:
*value = EGL_WAYLAND_BUFFER_RGBA_WL;
*value = EGL_TEXTURE_RGBA;
return EGL_TRUE;
case PIPE_FORMAT_B8G8R8X8_UNORM:
*value = EGL_WAYLAND_BUFFER_RGB_WL;
*value = EGL_TEXTURE_RGB;
return EGL_TRUE;
default:
return EGL_FALSE;