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Qt: Fix OpenGL 2.1 support (fixes #1678)

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This commit is contained in:
Vicki Pfau 2020-02-28 18:27:13 -08:00
parent cd6209d7f0
commit a637ac256d
2 changed files with 10 additions and 4 deletions
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1
CHANGES
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@ -22,6 +22,7 @@ Other fixes:
- GBA: Reject incorrectly sized BIOSes
- Debugger: Don't skip undefined instructions when debugger attached
- Qt: Force OpenGL paint engine creation thread (fixes mgba.io/i/1642)
- Qt: Fix OpenGL 2.1 support (fixes mgba.io/i/1678)
Misc:
- FFmpeg: Add looping option for GIF/APNG
- Qt: Renderer can be changed while a game is running

13
src/platform/opengl/gles2.c
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@ -21,6 +21,9 @@ static const GLchar* const _gles2Header =
"#version 100\n"
"precision mediump float;\n";
static const GLchar* const _gl2Header =
"#version 120\n";
static const GLchar* const _gl32VHeader =
"#version 150 core\n"
"#define attribute in\n"
@ -462,10 +465,12 @@ void mGLES2ShaderInit(struct mGLES2Shader* shader, const char* vs, const char* f
shader->fragmentShader = glCreateShader(GL_FRAGMENT_SHADER);
const GLchar* shaderBuffer[2];
const GLubyte* version = glGetString(GL_VERSION);
if (strncmp((const char*) version, "OpenGL ES ", strlen("OpenGL ES "))) {
shaderBuffer[0] = _gl32VHeader;
} else {
if (strncmp((const char*) version, "OpenGL ES ", strlen("OpenGL ES ")) == 0) {
shaderBuffer[0] = _gles2Header;
} else if (version[0] == '2') {
shaderBuffer[0] = _gl2Header;
} else {
shaderBuffer[0] = _gl32VHeader;
}
if (vs) {
shaderBuffer[1] = vs;
@ -474,7 +479,7 @@ void mGLES2ShaderInit(struct mGLES2Shader* shader, const char* vs, const char* f
}
glShaderSource(shader->vertexShader, 2, shaderBuffer, 0);
if (strncmp((const char*) version, "OpenGL ES ", strlen("OpenGL ES "))) {
if (shaderBuffer[0] == _gl32VHeader) {
shaderBuffer[0] = _gl32FHeader;
}
if (fs) {