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EGL: separate config and context code

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git-svn-id: https://svn.code.sf.net/p/freeglut/code/trunk@1173 7f0cb862-5218-0410-a997-914c9d46530a
This commit is contained in:
beuc 2012-03-17 10:09:19 +00:00
parent 8b779d66dd
commit 40db28bb94
5 changed files with 43 additions and 37 deletions
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13
freeglut/freeglut/src/android/fg_window_android.c
View File

@ -52,6 +52,7 @@ void fgPlatformOpenWindow( SFG_Window* window, const char* title,
return;
}
fghChooseConfigEGL(&window->Window.pContext.egl.Config);
fghCreateNewContextEGL(window);
/* Wait until window is available and OpenGL context is created */
@ -67,8 +68,16 @@ void fgPlatformOpenWindow( SFG_Window* window, const char* title,
}
EGLDisplay display = fgDisplay.pDisplay.egl.Display;
EGLint format = fgDisplay.pDisplay.single_window->Window.pContext.egl.ContextFormat;
ANativeWindow_setBuffersGeometry(window->Window.Handle, 0, 0, format);
/* EGL_NATIVE_VISUAL_ID is an attribute of the EGLConfig that is
* guaranteed to be accepted by ANativeWindow_setBuffersGeometry().
* As soon as we picked a EGLConfig, we can safely reconfigure the
* ANativeWindow buffers to match, using EGL_NATIVE_VISUAL_ID. */
EGLint vid;
eglGetConfigAttrib(display, window->Window.pContext.egl.Config,
EGL_NATIVE_VISUAL_ID, &vid);
ANativeWindow_setBuffersGeometry(window->Window.Handle, 0, 0, vid);
fghPlatformOpenWindowEGL(window);
window->State.Visible = GL_TRUE;

6
freeglut/freeglut/src/egl/fg_init_egl.c
View File

@ -47,6 +47,12 @@ void fgPlatformInitialize( const char* displayName )
if (!eglInitialize(fgDisplay.pDisplay.egl.Display, NULL, NULL))
fgError("eglInitialize: error %x\n", eglGetError());
# ifdef GL_VERSION_1_1 /* or later */
eglBindAPI(EGL_OPENGL_API);
# else
eglBindAPI(EGL_OPENGL_ES_API);
# endif
// fgDisplay.ScreenWidth = ...;
// fgDisplay.ScreenHeight = ...;
// fgDisplay.ScreenWidthMM = ...;

3
freeglut/freeglut/src/egl/fg_internal_egl.h
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@ -47,8 +47,7 @@ typedef EGLContext SFG_WindowContextType ;
struct tagSFG_PlatformContextEGL
{
EGLSurface Surface;
EGLConfig ContextConfig;
EGLint ContextFormat;
EGLConfig Config;
};

2
freeglut/freeglut/src/egl/fg_structure_egl.c
View File

@ -31,5 +31,5 @@ extern SFG_Structure fgStructure;
void fgPlatformCreateWindow ( SFG_Window *window )
{
window->Window.pContext.egl.Surface = EGL_NO_SURFACE;
window->Window.pContext.egl.ContextConfig = NULL;
window->Window.pContext.egl.Config = NULL;
}

56
freeglut/freeglut/src/egl/fg_window_egl.c
View File

@ -26,20 +26,16 @@
#include <GL/freeglut.h>
#include "fg_internal.h"
/**
* Initialize an EGL context for the current display.
*/
void fghCreateNewContextEGL( SFG_Window* window ) {
/*
* Here specify the attributes of the desired configuration.
* Below, we select an EGLConfig with at least 8 bits per color
* component compatible with on-screen windows
*/
/* Ensure OpenGLES 2.0 context */
printf("DisplayMode: %d (DEPTH %d)\n", fgState.DisplayMode, (fgState.DisplayMode & GLUT_DEPTH));
void fghChooseConfigEGL(EGLConfig* config) {
const EGLint attribs[] = {
EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
#ifdef GL_ES_VERSION_2_0
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
#elif GL_VERSION_ES_CM_1_0 || GL_VERSION_ES_CL_1_0 || GL_VERSION_ES_CM_1_1 || GL_VERSION_ES_CL_1_1
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES_BIT,
#else
EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
#endif
EGL_BLUE_SIZE, 1,
EGL_GREEN_SIZE, 1,
EGL_RED_SIZE, 1,
@ -50,34 +46,32 @@ void fghCreateNewContextEGL( SFG_Window* window ) {
EGL_SAMPLES, (fgState.DisplayMode & GLUT_MULTISAMPLE) ? fgState.SampleNumber : 0,
EGL_NONE
};
EGLint num_config;
if (!eglChooseConfig(fgDisplay.pDisplay.egl.Display,
attribs, config, 1, &num_config))
fgError("eglChooseConfig: error %x\n", eglGetError());
}
EGLint format;
EGLint numConfigs;
EGLConfig config;
/**
* Initialize an EGL context for the current display.
*/
void fghCreateNewContextEGL( SFG_Window* window ) {
EGLContext context;
EGLDisplay eglDisplay = fgDisplay.pDisplay.egl.Display;
/* Here, the application chooses the configuration it desires. In this
* sample, we have a very simplified selection process, where we pick
* the first EGLConfig that matches our criteria */
eglChooseConfig(eglDisplay, attribs, &config, 1, &numConfigs);
/* EGL_NATIVE_VISUAL_ID is an attribute of the EGLConfig that is
* guaranteed to be accepted by ANativeWindow_setBuffersGeometry().
* As soon as we picked a EGLConfig, we can safely reconfigure the
* ANativeWindow buffers to match, using EGL_NATIVE_VISUAL_ID. */
eglGetConfigAttrib(eglDisplay, config, EGL_NATIVE_VISUAL_ID, &format);
/* Default, but doesn't hurt */
eglBindAPI(EGL_OPENGL_ES_API);
EGLConfig eglConfig = window->Window.pContext.egl.Config;
/* Ensure OpenGLES 2.0 context */
static const EGLint ctx_attribs[] = {
#ifdef GL_ES_VERSION_2_0
EGL_CONTEXT_CLIENT_VERSION, 2,
#elif GL_VERSION_ES_CM_1_0 || GL_VERSION_ES_CL_1_0 || GL_VERSION_ES_CM_1_1 || GL_VERSION_ES_CL_1_1
EGL_CONTEXT_CLIENT_VERSION, 1,
#endif
EGL_NONE
};
context = eglCreateContext(eglDisplay, config, EGL_NO_CONTEXT, ctx_attribs);
context = eglCreateContext(eglDisplay, eglConfig, EGL_NO_CONTEXT, ctx_attribs);
if (context == EGL_NO_CONTEXT) {
fgWarning("Cannot initialize EGL context, err=%x\n", eglGetError());
fghContextCreationError();
@ -88,8 +82,6 @@ void fghCreateNewContextEGL( SFG_Window* window ) {
fgError("Wrong GLES major version: %d\n", ver);
window->Window.Context = context;
window->Window.pContext.egl.ContextConfig = config;
window->Window.pContext.egl.ContextFormat = format;
}
/*
@ -98,7 +90,7 @@ void fghCreateNewContextEGL( SFG_Window* window ) {
void fghPlatformOpenWindowEGL( SFG_Window* window )
{
EGLDisplay display = fgDisplay.pDisplay.egl.Display;
EGLConfig config = window->Window.pContext.egl.ContextConfig;
EGLConfig config = window->Window.pContext.egl.Config;
EGLSurface surface = eglCreateWindowSurface(display, config, window->Window.Handle, NULL);
if (surface == EGL_NO_SURFACE)