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render/gles: add support for some 16-bpc unsigned shm formats

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These formats require EXT_texture_norm16, which in turn needs OpenGL
ES 3.1. The EXT_texture_norm16 extension does not support passing
gl_internalformat = GL_RGBA to glTexImage2D, as can be done for
formats available in OpenGL ES 2.0, so this commit adds a field to
wlr_gles2_pixel_format to provide a more specific internalformat
parameter to glTexImage2D.
This commit is contained in:
Manuel Stoeckl 2022-04-30 22:43:49 -04:00 • committed by Simon Ser
parent cb012c5cb5
commit 7ad67e0f1d
5 changed files with 42 additions and 1 deletions
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7
render/gles2/texture.c
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@ -210,6 +210,11 @@ static struct wlr_texture *gles2_texture_from_pixels(
texture->has_alpha = fmt->has_alpha;
texture->drm_format = fmt->drm_format;
GLint internal_format = fmt->gl_internalformat;
if (!internal_format) {
internal_format = fmt->gl_format;
}
struct wlr_egl_context prev_ctx;
wlr_egl_save_context(&prev_ctx);
wlr_egl_make_current(renderer->egl);
@ -222,7 +227,7 @@ static struct wlr_texture *gles2_texture_from_pixels(
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT, stride / (drm_fmt->bpp / 8));
glTexImage2D(GL_TEXTURE_2D, 0, fmt->gl_format, width, height, 0,
glTexImage2D(GL_TEXTURE_2D, 0, internal_format, width, height, 0,
fmt->gl_format, fmt->gl_type, data);
glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT, 0);