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Fix texture sharing between GPUs

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Bastien
2018-09-22 14:54:39 +02:00
parent db8564e12b
commit b1febba24e
5 changed files with 30 additions and 10 deletions
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4
examples/opengl/context.inl
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@@ -1,11 +1,11 @@
#include <EGL/egl.h>
#include <stdbool.h>
static inline bool create_context(EGLNativeDisplayType nativeDisplay, EGLNativeWindowType nativeWindow, const EGLint * config_attribs, const EGLint * context_attribs, const EGLint * surface_attribs, EGLDisplay * outDisplay, EGLContext * outContext, EGLSurface * outSurface)
static inline bool create_context(EGLenum platform, EGLNativeDisplayType nativeDisplay, EGLNativeWindowType nativeWindow, const EGLint * config_attribs, const EGLint * context_attribs, const EGLint * surface_attribs, EGLDisplay * outDisplay, EGLContext * outContext, EGLSurface * outSurface)
{
//
// get an EGL display connection
EGLDisplay display = eglGetDisplay(nativeDisplay);
EGLDisplay display = eglGetPlatformDisplay(platform, nativeDisplay, (EGLAttrib*)0);
if (EGL_NO_DISPLAY == display)
{

9
examples/opengl/gl.c
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@@ -143,7 +143,7 @@ void init_gl(gl_ctx* ctx, int w, int h)
ctx->h = h;
ctx->is_fullscreen = 0;
bool bContextCreated = create_context(EGL_DEFAULT_DISPLAY, ctx->x_window, egl_config_attribs, egl_context_attribs, egl_surface_attribs, &ctx->egl_display, &ctx->egl_context, &ctx->egl_surface);
bool bContextCreated = create_context(EGL_PLATFORM_X11_KHR, EGL_DEFAULT_DISPLAY, ctx->x_window, egl_config_attribs, egl_context_attribs, egl_surface_attribs, &ctx->egl_display, &ctx->egl_context, &ctx->egl_surface);
if(!bContextCreated || ctx->egl_context == EGL_NO_CONTEXT)
{
@@ -289,14 +289,19 @@ GLuint compile_shader(const char* vertex, const char* fragment)
return programShader;
}
void create_fbo(int eye_width, int eye_height, GLuint* fbo, GLuint* color_tex, GLuint* depth_tex)
void create_fbo(int eye_width, int eye_height, GLuint* fbo, GLuint* color_tex, GLuint* depth_tex, EGLImage image)
{
glGenTextures(1, color_tex);
glGenTextures(1, depth_tex);
glGenFramebuffers(1, fbo);
glBindTexture(GL_TEXTURE_2D, *color_tex);
#if 0
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, eye_width, eye_height, 0, GL_RGBA, GL_UNSIGNED_INT, NULL);
#else
PFNGLEGLIMAGETARGETTEXTURE2DOESPROC glEGLImageTargetTexture2DOES = (PFNGLEGLIMAGETARGETTEXTURE2DOESPROC) eglGetProcAddress ("glEGLImageTargetTexture2DOES");
glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, image);
#endif // 0
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);

2
examples/opengl/gl.h
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@@ -37,7 +37,7 @@ void perspective(gl_ctx* ctx);
void init_gl(gl_ctx* ctx, int w, int h);
void draw_cube();
GLuint compile_shader(const char* vertex, const char* fragment);
void create_fbo(int eye_width, int eye_height, GLuint* fbo, GLuint* color_tex, GLuint* depth_tex);
void create_fbo(int eye_width, int eye_height, GLuint* fbo, GLuint* color_tex, GLuint* depth_tex, EGLImage image);
#endif

23
examples/opengl/main.c
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@@ -171,19 +171,34 @@ int main(int argc, char** argv)
GLuint list = gen_cubes();
int eye_w = hmd_w/2*OVERSAMPLE_SCALE;
int eye_h = hmd_h*OVERSAMPLE_SCALE;
EGLint imageAttribs[] = {
EGL_WIDTH, eye_w,
EGL_HEIGHT, eye_h,
EGL_DRM_BUFFER_FORMAT_MESA, EGL_DRM_BUFFER_FORMAT_ARGB32_MESA,
EGL_DRM_BUFFER_USE_MESA, EGL_DRM_BUFFER_USE_SHARE_MESA,
EGL_NONE
};
PFNEGLCREATEDRMIMAGEMESAPROC eglCreateDRMImage = (PFNEGLCREATEDRMIMAGEMESAPROC) eglGetProcAddress("eglCreateDRMImageMESA");
EGLImage left_image = eglCreateDRMImage(gl.egl_display, imageAttribs);
EGLImage right_image = eglCreateDRMImage(gl.egl_display, imageAttribs);
GLuint left_color_tex = 0, left_depth_tex = 0, left_fbo = 0;
create_fbo(eye_w, eye_h, &left_fbo, &left_color_tex, &left_depth_tex);
create_fbo(eye_w, eye_h, &left_fbo, &left_color_tex, &left_depth_tex, left_image);
GLuint right_color_tex = 0, right_depth_tex = 0, right_fbo = 0;
create_fbo(eye_w, eye_h, &right_fbo, &right_color_tex, &right_depth_tex);
create_fbo(eye_w, eye_h, &right_fbo, &right_color_tex, &right_depth_tex, right_image);
PFNEGLEXPORTDMABUFIMAGEMESAPROC eglExportDMABUFImage = (PFNEGLEXPORTDMABUFIMAGEMESAPROC) eglGetProcAddress("eglExportDMABUFImageMESA");
PFNEGLEXPORTDMABUFIMAGEQUERYMESAPROC eglExportDMABUFImageQuery = (PFNEGLEXPORTDMABUFIMAGEQUERYMESAPROC) eglGetProcAddress("eglExportDMABUFImageQueryMESA");
#if 1
EGLImage left_image = eglCreateImage(gl.egl_display, gl.egl_context, EGL_GL_TEXTURE_2D, (EGLClientBuffer)(left_color_tex), NULL);
//EGLImage left_image = eglCreateImage(gl.egl_display, gl.egl_context, EGL_GL_TEXTURE_2D, (EGLClientBuffer)(left_color_tex), NULL);
dma_texture_params left_texture_params;
left_texture_params.width = eye_w;
@@ -193,7 +208,7 @@ int main(int argc, char** argv)
#endif // 0
#if 1
EGLImage right_image = eglCreateImage(gl.egl_display, gl.egl_context, EGL_GL_TEXTURE_2D, (EGLClientBuffer)(right_color_tex), NULL);
//EGLImage right_image = eglCreateImage(gl.egl_display, gl.egl_context, EGL_GL_TEXTURE_2D, (EGLClientBuffer)(right_color_tex), NULL);
dma_texture_params right_texture_params;
right_texture_params.width = eye_w;

2
examples/opengl/vr_context.c
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@@ -67,7 +67,7 @@ void init_vr_context(struct lvrcInstance * compositor, dma_texture_params * left
exit(-1);
}
bool bContextCreated = create_context(nativeDisplay, nativeWindow, attribs, context_attributes, NULL, &display, &context, &surface);
bool bContextCreated = create_context(EGL_PLATFORM_GBM_KHR, nativeDisplay, nativeWindow, attribs, context_attributes, NULL, &display, &context, &surface);
if (!bContextCreated)
{