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GPU: Add Image Load Store extension support

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This wraps the functionality used to speedup EEVEE volumetrics.

This touches the rendering code of EEVEE as it should fix a mis-usage of
the GL barrier. The barrier changed type and location, removing an
unused barrier.
This commit is contained in:
Clément Foucault
2020-09-12 06:10:11 +02:00
parent a442da62dc
commit 136bdb561b
22 changed files with 278 additions and 34 deletions
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15
source/blender/gpu/opengl/gl_backend.cc
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@@ -210,6 +210,7 @@ static void detect_workarounds(void)
GLContext::debug_layer_workaround = true;
GLContext::unused_fb_slot_workaround = true;
/* Turn off extensions. */
GCaps.shader_image_load_store_support = false;
GLContext::base_instance_support = false;
GLContext::clear_texture_support = false;
GLContext::copy_image_support = false;
@@ -250,17 +251,20 @@ static void detect_workarounds(void)
(strstr(version, "4.5.13399") || strstr(version, "4.5.13417") ||
strstr(version, "4.5.13422"))) {
GLContext::unused_fb_slot_workaround = true;
GCaps.shader_image_load_store_support = false;
GCaps.broken_amd_driver = true;
}
/* We have issues with this specific renderer. (see T74024) */
if (GPU_type_matches(GPU_DEVICE_ATI, GPU_OS_UNIX, GPU_DRIVER_OPENSOURCE) &&
strstr(renderer, "AMD VERDE")) {
GLContext::unused_fb_slot_workaround = true;
GCaps.shader_image_load_store_support = false;
GCaps.broken_amd_driver = true;
}
/* Fix slowdown on this particular driver. (see T77641) */
if (GPU_type_matches(GPU_DEVICE_ATI, GPU_OS_UNIX, GPU_DRIVER_OPENSOURCE) &&
strstr(version, "Mesa 19.3.4")) {
GCaps.shader_image_load_store_support = false;
GCaps.broken_amd_driver = true;
}
/* There is an issue with the #glBlitFramebuffer on MacOS with radeon pro graphics.
@@ -349,10 +353,10 @@ static void detect_workarounds(void)
}
/** Internal capabilities. */
GLint GLContext::max_texture_3d_size;
GLint GLContext::max_cubemap_size;
GLint GLContext::max_ubo_size;
GLint GLContext::max_ubo_binds;
GLint GLContext::max_cubemap_size = 0;
GLint GLContext::max_texture_3d_size = 0;
GLint GLContext::max_ubo_binds = 0;
GLint GLContext::max_ubo_size = 0;
/** Extensions. */
bool GLContext::base_instance_support = false;
bool GLContext::clear_texture_support = false;
@@ -383,6 +387,7 @@ void GLBackend::capabilities_init(void)
glGetIntegerv(GL_MAX_GEOMETRY_TEXTURE_IMAGE_UNITS, &GCaps.max_textures_geom);
glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &GCaps.max_textures);
GCaps.mem_stats_support = GLEW_NVX_gpu_memory_info || GLEW_ATI_meminfo;
GCaps.shader_image_load_store_support = GLEW_ARB_shader_image_load_store;
/* GL specific capabilities. */
glGetIntegerv(GL_MAX_3D_TEXTURE_SIZE, &GLContext::max_texture_3d_size);
glGetIntegerv(GL_MAX_CUBE_MAP_TEXTURE_SIZE, &GLContext::max_cubemap_size);
@@ -413,4 +418,4 @@ void GLBackend::capabilities_init(void)
/** \} */
} // namespace blender::gpu
} // namespace blender::gpu