include/SDL_config_wiz.h
author Sam Lantinga <slouken@libsdl.org>
Wed, 18 Oct 2017 08:52:04 -0700
changeset 11630 ad4b5d85edee
parent 11610 6dea196ecbcb
child 11684 eccdf37f8996
permissions -rw-r--r--
Fixed bug 3821 - Allow SDL_CreateWindow and SDL_CreateRenderer with OpenGL ES 3.0 (GLES3) for Angle (Windows)

Carlos

Angle supports GLES3 but when using these functions (SDL_CreateWindow and SDL_CreateRenderer), defaults again to GLES2.0.

A current workaround (hack) to retrieve a GLES3.0 context with Angle is:

1) set

SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);

after InitSDL AND after calling SDL_CreateWindow (before SDL_CreateRenderer)

2) Comment lines 2032-2044 in SDL_render_gles2.c, funtion GLES2_CreateRenderer

window_flags = SDL_GetWindowFlags(window);
if (!(window_flags & SDL_WINDOW_OPENGL) ||
profile_mask != SDL_GL_CONTEXT_PROFILE_ES || major != RENDERER_CONTEXT_MAJOR || minor != RENDERER_CONTEXT_MINOR) {

changed_window = SDL_TRUE;
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_ES);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, RENDERER_CONTEXT_MAJOR);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, RENDERER_CONTEXT_MINOR);

if (SDL_RecreateWindow(window, window_flags | SDL_WINDOW_OPENGL) < 0) {
goto error;
}
}

This retrives a GLES3 context as confirmed using glGetString(GL_VERSION). This should be fixed by modifying a few if's.
     1 /*
     2   Simple DirectMedia Layer
     3   Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org>
     4 
     5   This software is provided 'as-is', without any express or implied
     6   warranty.  In no event will the authors be held liable for any damages
     7   arising from the use of this software.
     8 
     9   Permission is granted to anyone to use this software for any purpose,
    10   including commercial applications, and to alter it and redistribute it
    11   freely, subject to the following restrictions:
    12 
    13   1. The origin of this software must not be misrepresented; you must not
    14      claim that you wrote the original software. If you use this software
    15      in a product, an acknowledgment in the product documentation would be
    16      appreciated but is not required.
    17   2. Altered source versions must be plainly marked as such, and must not be
    18      misrepresented as being the original software.
    19   3. This notice may not be removed or altered from any source distribution.
    20 */
    21 
    22 #ifndef SDL_config_wiz_h_
    23 #define SDL_config_wiz_h_
    24 #define SDL_config_h_
    25 
    26 /* This is a set of defines to configure the SDL features */
    27 
    28 /* General platform specific identifiers */
    29 #include "SDL_platform.h"
    30 
    31 #define SDL_BYTEORDER 1234
    32 
    33 #define STDC_HEADERS 1
    34 #define HAVE_ALLOCA_H 1
    35 #define HAVE_CTYPE_H 1
    36 #define HAVE_ICONV_H 1
    37 #define HAVE_INTTYPES_H 1
    38 #define HAVE_LIMITS_H 1
    39 #define HAVE_MALLOC_H 1
    40 #define HAVE_MATH_H 1
    41 #define HAVE_MEMORY_H 1
    42 #define HAVE_SIGNAL_H 1
    43 #define HAVE_STDARG_H 1
    44 #define HAVE_STDINT_H 1
    45 #define HAVE_STDIO_H 1
    46 #define HAVE_STDLIB_H 1
    47 #define HAVE_STRINGS_H 1
    48 #define HAVE_STRING_H 1
    49 #define HAVE_SYS_TYPES_H 1
    50 
    51 #define HAVE_MALLOC 1
    52 #define HAVE_CALLOC 1
    53 #define HAVE_REALLOC 1
    54 #define HAVE_FREE 1
    55 #define HAVE_ALLOCA 1
    56 #define HAVE_GETENV 1
    57 #define HAVE_SETENV 1
    58 #define HAVE_PUTENV 1
    59 #define HAVE_UNSETENV 1
    60 #define HAVE_QSORT 1
    61 #define HAVE_ABS 1
    62 #define HAVE_BCOPY 1
    63 #define HAVE_MEMSET 1
    64 #define HAVE_MEMCPY 1
    65 #define HAVE_MEMMOVE 1
    66 #define HAVE_STRLEN 1
    67 #define HAVE_STRCHR 1
    68 #define HAVE_STRRCHR 1
    69 #define HAVE_STRSTR 1
    70 #define HAVE_STRTOL 1
    71 #define HAVE_STRTOUL 1
    72 #define HAVE_STRTOLL 1
    73 #define HAVE_STRTOULL 1
    74 #define HAVE_ATOI 1
    75 #define HAVE_ATOF 1
    76 #define HAVE_STRCMP 1
    77 #define HAVE_STRNCMP 1
    78 #define HAVE_STRCASECMP 1
    79 #define HAVE_STRNCASECMP 1
    80 #define HAVE_VSSCANF 1
    81 #define HAVE_VSNPRINTF 1
    82 #define HAVE_M_PI 1
    83 #define HAVE_CEIL 1
    84 #define HAVE_COPYSIGN 1
    85 #define HAVE_COS 1
    86 #define HAVE_COSF 1
    87 #define HAVE_FABS 1
    88 #define HAVE_FLOOR 1
    89 #define HAVE_LOG 1
    90 #define HAVE_SCALBN 1
    91 #define HAVE_SIN 1
    92 #define HAVE_SINF 1
    93 #define HAVE_SQRT 1
    94 #define HAVE_SQRTF 1
    95 #define HAVE_TAN 1
    96 #define HAVE_TANF 1
    97 #define HAVE_SIGACTION 1
    98 #define HAVE_SETJMP 1
    99 #define HAVE_NANOSLEEP 1
   100 #define HAVE_POW 1
   101 
   102 #define SDL_AUDIO_DRIVER_DUMMY 1
   103 #define SDL_AUDIO_DRIVER_OSS 1
   104 
   105 #define SDL_INPUT_LINUXEV 1
   106 #define SDL_INPUT_TSLIB 1
   107 #define SDL_JOYSTICK_LINUX 1
   108 #define SDL_HAPTIC_LINUX 1
   109 
   110 #define SDL_LOADSO_DLOPEN 1
   111 
   112 #define SDL_THREAD_PTHREAD 1
   113 #define SDL_THREAD_PTHREAD_RECURSIVE_MUTEX_NP 1
   114 
   115 #define SDL_TIMER_UNIX 1
   116 
   117 #define SDL_VIDEO_DRIVER_DUMMY 1
   118 #define SDL_VIDEO_DRIVER_PANDORA 1
   119 #define SDL_VIDEO_RENDER_OGL_ES 1
   120 #define SDL_VIDEO_OPENGL_ES 1
   121 
   122 #endif /* SDL_config_wiz_h_ */