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[client] egl: use glCopyTexSubImage2D to copy when using DMA

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This removes the need for the driver to allocate texture storage and deleting
the previous allocation on every frame update.
This commit is contained in:
Quantum
2021-07-15 21:53:29 -04:00
committed by Geoffrey McRae
parent e32494f684
commit eb357fa58a
1 changed files with 6 additions and 1 deletions
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7
client/renderers/EGL/texture.c
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@@ -272,6 +272,11 @@ bool egl_texture_setup(EGL_Texture * texture, enum EGL_PixelFormat pixFmt, size_
glGenFramebuffers(1, &texture->dmaFBO);
glGenTextures(1, &texture->dmaTex);
glBindTexture(GL_TEXTURE_2D, texture->tex[0]);
glTexImage2D(GL_TEXTURE_2D, 0, texture->intFormat, texture->width,
texture->height, 0, texture->format, texture->dataType, NULL);
glBindTexture(GL_TEXTURE_2D, 0);
for (size_t i = 0; i < texture->dmaImageUsed; ++i)
eglDestroyImage(texture->display, texture->dmaImages[i].image);
texture->dmaImageUsed = 0;
@@ -465,7 +470,7 @@ bool egl_texture_update_from_dma(EGL_Texture * texture, const FrameBuffer * fram
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, texture->dmaTex, 0);
glBindTexture(GL_TEXTURE_2D, texture->tex[0]);
glCopyTexImage2D(GL_TEXTURE_2D, 0, texture->intFormat, 0, 0, texture->width, texture->height, 0);
glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, texture->width, texture->height);
GLsync fence = glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0);
glFlush();