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[client] egl: add portable texture upload fallback

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This commit is contained in:
Geoffrey McRae
2026-09-12 10:45:04 +10:00
parent 7ea69f3d1c
commit 18541865f0
17 changed files with 1010 additions and 116 deletions
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23
client/renderers/EGL/texture_buffer.c
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@@ -454,14 +454,17 @@ EGL_TexStatus egl_texBufferStreamProcess(EGL_Texture * texture,
this->bufIndex = 0;
buffer->updated = false;
/* With more than one slot the producer can fill the next PBO while this
* upload is queued. A single-slot texture must remain locked until its
* fence exists so the mapped buffer cannot be overwritten concurrently. */
/* With more than one slot the producer can fill the next upload buffer
* while this one is submitted. Keep a single-slot texture locked until the
* upload is issued and, for persistent storage, its fence exists. */
const bool keepLocked = this->texCount == 1;
if (!keepLocked)
LG_UNLOCK(this->copyLock);
egl_stateBindBuffer(GL_PIXEL_UNPACK_BUFFER, buffer->pbo);
const bool persistent =
buffer->mode == EGL_TEX_BUFFER_MODE_PERSISTENT;
egl_stateBindBuffer(GL_PIXEL_UNPACK_BUFFER,
persistent ? buffer->pbo : 0);
egl_stateBindTexture(0, GL_TEXTURE_2D, tex);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
@@ -475,7 +478,7 @@ EGL_TexStatus egl_texBufferStreamProcess(EGL_Texture * texture,
texture->format.height,
texture->format.format,
texture->format.dataType,
(const void *)0);
persistent ? (const void *)0 : buffer->map);
else
for (int i = 0; i < damage->count; ++i)
{
@@ -491,11 +494,19 @@ EGL_TexStatus egl_texBufferStreamProcess(EGL_Texture * texture,
rect->height,
texture->format.format,
texture->format.dataType,
(const void *)offset);
persistent ? (const void *)offset :
(const uint8_t *)buffer->map + offset);
}
/* Keep damage intact until all of its upload commands have been issued. */
egl_texBufferDamageReset(damage);
if (!persistent)
{
if (keepLocked)
LG_UNLOCK(this->copyLock);
return EGL_TEX_STATUS_UPDATED;
}
this->sync[index] = glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0);
if (unlikely(!this->sync[index]))
{