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libobs, libobs-opengl: Add memory and identification APIs

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Add graphics APIs to obtain the GPU driver version and renderer
strings, as well as GDDR memory sizes. The GDDR memory sizes
include the dmem (dedicated memory on the GPU) and smem
(shared CPU memory used by the GPU but resides in the CPU DDR).

The version and renderer strings are needed for identification
purposes, for example enhanced broadcasting used by Twitch, to
associate the GPU used by OBS with the PCIe-based identification
values such as device_id and vendor_id.
This commit is contained in:
Alex Luccisano 2024-07-29 14:47:09 -04:00 • committed by Ryan Foster
commit abb8cdf0da
6 changed files with 82 additions and 0 deletions
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4
libobs/graphics/device-exports.h
View file

@ -24,6 +24,10 @@ extern "C" {
#endif
EXPORT const char *device_get_name(void);
EXPORT const char *gpu_get_driver_version(void);
EXPORT const char *gpu_get_renderer(void);
EXPORT uint64_t gpu_get_dmem(void);
EXPORT uint64_t gpu_get_smem(void);
EXPORT int device_get_type(void);
EXPORT bool device_enum_adapters(gs_device_t *device, bool (*callback)(void *param, const char *name, uint32_t id),
void *param);

4
libobs/graphics/graphics-imports.c
View file

@ -42,6 +42,10 @@ bool load_graphics_imports(struct gs_exports *exports, void *module, const char
bool success = true;
GRAPHICS_IMPORT(device_get_name);
GRAPHICS_IMPORT_OPTIONAL(gpu_get_driver_version);
GRAPHICS_IMPORT_OPTIONAL(gpu_get_renderer);
GRAPHICS_IMPORT_OPTIONAL(gpu_get_dmem);
GRAPHICS_IMPORT_OPTIONAL(gpu_get_smem);
GRAPHICS_IMPORT(device_get_type);
GRAPHICS_IMPORT_OPTIONAL(device_enum_adapters);
GRAPHICS_IMPORT(device_preprocessor_name);

4
libobs/graphics/graphics-internal.h
View file

@ -25,6 +25,10 @@
struct gs_exports {
const char *(*device_get_name)(void);
const char *(*gpu_get_driver_version)(void);
const char *(*gpu_get_renderer)(void);
uint64_t (*gpu_get_dmem)(void);
uint64_t (*gpu_get_smem)(void);
int (*device_get_type)(void);
bool (*device_enum_adapters)(gs_device_t *device, bool (*callback)(void *, const char *, uint32_t), void *);
const char *(*device_preprocessor_name)(void);

20
libobs/graphics/graphics.c
View file

@ -297,6 +297,26 @@ const char *gs_get_device_name(void)
return gs_valid("gs_get_device_name") ? thread_graphics->exports.device_get_name() : NULL;
}
const char *gs_get_driver_version(void)
{
return gs_valid("gs_get_driver_version") ? thread_graphics->exports.gpu_get_driver_version() : NULL;
}
const char *gs_get_renderer(void)
{
return gs_valid("gs_get_renderer") ? thread_graphics->exports.gpu_get_renderer() : NULL;
}
uint64_t gs_get_gpu_dmem(void)
{
return gs_valid("gs_get_gpu_dmem") ? thread_graphics->exports.gpu_get_dmem() : 0;
}
uint64_t gs_get_gpu_smem(void)
{
return gs_valid("gs_get_gpu_smem") ? thread_graphics->exports.gpu_get_smem() : 0;
}
int gs_get_device_type(void)
{
return gs_valid("gs_get_device_type") ? thread_graphics->exports.device_get_type() : -1;

4
libobs/graphics/graphics.h
View file

@ -502,6 +502,10 @@ struct gs_init_data {
#define GS_DEVICE_DIRECT3D_11 2
EXPORT const char *gs_get_device_name(void);
EXPORT const char *gs_get_driver_version(void);
EXPORT const char *gs_get_renderer(void);
EXPORT uint64_t gs_get_gpu_dmem(void);
EXPORT uint64_t gs_get_gpu_smem(void);
EXPORT int gs_get_device_type(void);
EXPORT uint32_t gs_get_adapter_count(void);
EXPORT void gs_enum_adapters(bool (*callback)(void *param, const char *name, uint32_t id), void *param);