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old API fixes

This commit is contained in:
gazer 2017-06-08 15:55:14 +03:00
parent 1ca3ea4b27
commit b07a6d54a7
1 changed files with 9 additions and 6 deletions
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15
src/dlangui/graphics/glsupport.d
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@ -694,6 +694,8 @@ bool initGLSupport(bool legacy = false) {
} }
if (!_glSupport) { if (!_glSupport) {
Log.d("glSupport not initialized: trying to create"); Log.d("glSupport not initialized: trying to create");
int major = to!int(glGetString(GL_VERSION)[0 .. 1]);
legacy = legacy || (major < 3);
_glSupport = new GLSupport(legacy); _glSupport = new GLSupport(legacy);
if (!_glSupport.valid) { if (!_glSupport.valid) {
Log.e("Failed to compile shaders"); Log.e("Failed to compile shaders");
@ -705,9 +707,8 @@ bool initGLSupport(bool legacy = false) {
Log.i("Trying to reinit GLSupport with legacy flag ", !legacy); Log.i("Trying to reinit GLSupport with legacy flag ", !legacy);
_glSupport = new GLSupport(!legacy); _glSupport = new GLSupport(!legacy);
} }
// Situation when opposite legacy flag is true and context version is 3.1+ // Situation when opposite legacy flag is true and GL version is 3+ with no old functions
if (_glSupport.legacyMode) { if (_glSupport.legacyMode) {
int major = to!int(glGetString(GL_VERSION)[0]);
if (major >= 3) { if (major >= 3) {
Log.e("Try to create OpenGL context with <= 3.1 version"); Log.e("Try to create OpenGL context with <= 3.1 version");
return false; return false;
@ -828,10 +829,12 @@ final class GLSupport {
/// This function is needed to draw custom OpenGL scene correctly (especially on legacy API) /// This function is needed to draw custom OpenGL scene correctly (especially on legacy API)
private void resetBindings() { private void resetBindings() {
// TODO: check if there is a very old driver with no such functions if (glUseProgram)
GLProgram.unbind(); GLProgram.unbind();
VAO.unbind(); if (glBindVertexArray)
VBO.unbind(); VAO.unbind();
if (glBindBuffer)
VBO.unbind();
} }
private void destroyBuffers() { private void destroyBuffers() {