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Force OpenGL Core Profile context on macOS

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By default, SDL creates an OpenGL 2.1 context on macOS for an OpenGL
renderer. As a consequence, mipmapping is not supported.

Force to use a core profile context, to get a higher version.

Before:

    INFO: Renderer: opengl
    INFO: OpenGL version: 2.1 NVIDIA-14.0.32 355.11.11.10.10.143
    WARN: Trilinear filtering disabled (OpenGL 3.0+ or ES 2.0+ required)

After:

    INFO: Renderer: opengl
    DEBUG: Creating OpenGL Core Profile context
    INFO: OpenGL version: 4.1 NVIDIA-14.0.32 355.11.11.10.10.143
    INFO: Trilinear filtering enabled

when running with:

    scrcpy --verbosity=debug --render-driver=opengl

Note: Since SDL_CreateRenderer() causes a fallback to OpenGL 2.1, the
profile and version attributes have to be set and the context created
_after_.

PR #3895 <https://github.com/Genymobile/scrcpy/pull/3895>

Signed-off-by: Romain Vimont <rom@rom1v.com>
This commit is contained in:
Yan 2023-04-05 16:04:03 +02:00 committed by Romain Vimont
parent 9eb6591913
commit c083a7cc90
2 changed files with 27 additions and 0 deletions
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19
app/src/display.c
View file

@ -23,6 +23,22 @@ sc_display_init(struct sc_display *display, SDL_Window *window, bool mipmaps) {
// starts with "opengl"
bool use_opengl = renderer_name && !strncmp(renderer_name, "opengl", 6);
if (use_opengl) {
#ifdef SC_DISPLAY_FORCE_OPENGL_CORE_PROFILE
// Persuade macOS to give us something better than OpenGL 2.1.
// If we create a Core Profile context, we get the best OpenGL version.
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK,
SDL_GL_CONTEXT_PROFILE_CORE);
LOGD("Creating OpenGL Core Profile context");
display->gl_context = SDL_GL_CreateContext(window);
if (!display->gl_context) {
LOGE("Could not create OpenGL context: %s", SDL_GetError());
SDL_DestroyRenderer(display->renderer);
return false;
}
#endif
struct sc_opengl *gl = &display->gl;
sc_opengl_init(gl);
@ -51,6 +67,9 @@ sc_display_init(struct sc_display *display, SDL_Window *window, bool mipmaps) {
void
sc_display_destroy(struct sc_display *display) {
#ifdef SC_DISPLAY_FORCE_OPENGL_CORE_PROFILE
SDL_GL_DeleteContext(display->gl_context);
#endif
if (display->texture) {
SDL_DestroyTexture(display->texture);
}

8
app/src/display.h
View file

@ -10,11 +10,19 @@
#include "coords.h"
#include "opengl.h"
#ifdef __APPLE__
# define SC_DISPLAY_FORCE_OPENGL_CORE_PROFILE
#endif
struct sc_display {
SDL_Renderer *renderer;
SDL_Texture *texture;
struct sc_opengl gl;
#ifdef SC_DISPLAY_FORCE_OPENGL_CORE_PROFILE
SDL_GLContext *gl_context;
#endif
bool mipmaps;
};