mirrors/monado
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/monado/monado.git synced 2025-01-01 04:36:07 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

a/ogl: Add helper to import native images

Browse source
This commit is contained in:
Jakob Bornecrantz 2023-09-12 15:23:44 +01:00
parent 1a543cb0c0
commit 95e1c9c8dd
2 changed files with 115 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

83
src/xrt/auxiliary/ogl/ogl_helpers.c
View file

@ -7,6 +7,7 @@
* @ingroup aux_ogl
*/
#include "util/u_handles.h"
#include "util/u_logging.h"
#include "ogl_helpers.h"
@ -14,6 +15,25 @@
#include <inttypes.h>
/*!
* Check for OpenGL errors, context needs to be current.
*
* @ingroup sdl_test
*/
#define CHECK_GL() \
do { \
GLint err = glGetError(); \
if (err != 0) { \
U_LOG_RAW("%s:%u: error: 0x%04x", __func__, __LINE__, err); \
} \
} while (false)
/*
*
* 'Exported' functions.
*
*/
void
ogl_texture_target_for_swapchain_info(const struct xrt_swapchain_create_info *info,
@ -72,3 +92,66 @@ ogl_vk_format_to_gl(int64_t vk_format)
default: U_LOG_W("Cannot convert VK format %" PRIu64 " to GL format!", vk_format); return 0;
}
}
XRT_CHECK_RESULT bool
ogl_import_from_native(struct xrt_image_native *natives,
uint32_t native_count,
const struct xrt_swapchain_create_info *info,
struct ogl_import_results *results)
{
// Setup fields.
results->width = info->width;
results->height = info->height;
results->image_count = native_count;
GLuint binding_enum = 0;
GLuint tex_target = 0;
ogl_texture_target_for_swapchain_info(info, &tex_target, &binding_enum);
GLuint gl_format = ogl_vk_format_to_gl(info->format);
glCreateTextures(tex_target, native_count, results->textures);
CHECK_GL();
glCreateMemoryObjectsEXT(native_count, results->memories);
CHECK_GL();
for (uint32_t i = 0; i < native_count; i++) {
GLint dedicated = natives[i].use_dedicated_allocation ? GL_TRUE : GL_FALSE;
glMemoryObjectParameterivEXT(results->memories[i], GL_DEDICATED_MEMORY_OBJECT_EXT, &dedicated);
CHECK_GL();
// The below function consumes the handle, need to reference it.
xrt_graphics_buffer_handle_t handle = u_graphics_buffer_ref(natives[i].handle);
glImportMemoryFdEXT( //
results->memories[i], //
natives[i].size, //
GL_HANDLE_TYPE_OPAQUE_FD_EXT, //
(GLint)handle); //
CHECK_GL();
if (info->array_size == 1) {
glTextureStorageMem2DEXT( //
results->textures[i], //
info->mip_count, //
gl_format, //
info->width, //
info->height, //
results->memories[i], //
0); //
} else {
glTextureStorageMem3DEXT( //
results->textures[i], //
info->mip_count, //
gl_format, //
info->width, //
info->height, //
info->array_size, //
results->memories[i], //
0); //
}
CHECK_GL();
}
return true;
}

32
src/xrt/auxiliary/ogl/ogl_helpers.h
View file

@ -16,6 +16,27 @@
extern "C" {
#endif
/*!
* Results from a import, nicer then having to pass in multiple arrays.
*
* @ingroup aux_ogl
*/
struct ogl_import_results
{
//! Imported textures.
uint32_t textures[XRT_MAX_SWAPCHAIN_IMAGES];
//! Memory objects for imported textures.
uint32_t memories[XRT_MAX_SWAPCHAIN_IMAGES];
//! The count of textures and memories.
uint32_t image_count;
//! Dimensions.
uint32_t width, height;
};
/*!
* Determine the texture target and the texture binding parameter to
* save/restore for creation/use of an OpenGL texture from the given info.
@ -36,6 +57,17 @@ ogl_texture_target_for_swapchain_info(const struct xrt_swapchain_create_info *in
XRT_CHECK_RESULT uint32_t
ogl_vk_format_to_gl(int64_t vk_format);
/*!
* Import native images, a context needs to be current when called.
*
* @ingroup aux_ogl
*/
XRT_CHECK_RESULT bool
ogl_import_from_native(struct xrt_image_native *natives,
uint32_t native_count,
const struct xrt_swapchain_create_info *info,
struct ogl_import_results *results);
#ifdef __cplusplus
}