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GTK+: OpenGL: Don't reset state we don't change.

This commit is contained in:
Brandon Wright 2018-11-17 12:19:16 -06:00
parent 79e641664b
commit 1cd825090b
2 changed files with 16 additions and 19 deletions
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2
gtk/src/gtk_config.cpp
View File

@ -617,7 +617,7 @@ int Snes9xConfig::load_config_file ()
bool RemoveSpriteLimit;
inbool (z"RemoveSpriteLimit", RemoveSpriteLimit);
bool OverclockCPU;
bool OverclockCPU = false;
inbool (z"OverclockCPU", OverclockCPU);
#undef z

33
gtk/src/gtk_display_driver_opengl.cpp
View File

@ -254,24 +254,7 @@ void S9xOpenGLDisplayDriver::update (int width, int height, int yoffset)
return;
}
if (legacy)
{
glVertexPointer (2, GL_FLOAT, 0, coords);
glTexCoordPointer (2, GL_FLOAT, 0, &coords[8]);
glDrawArrays (GL_TRIANGLE_STRIP, 0, 4);
}
else
{
glUseProgram (stock_program);
glBindBuffer (GL_ARRAY_BUFFER, coord_buffer);
glEnableVertexAttribArray (0);
glVertexAttribPointer (0, 2, GL_FLOAT, GL_FALSE, 0, BUFFER_OFFSET (0));
glEnableVertexAttribArray (1);
glVertexAttribPointer (1, 2, GL_FLOAT, GL_FALSE, 0, BUFFER_OFFSET (32));
glDrawArrays (GL_TRIANGLE_STRIP, 0, 4);
glDisableVertexAttribArray (1);
glDisableVertexAttribArray (0);
}
glDrawArrays (GL_TRIANGLE_STRIP, 0, 4);
swap_buffers ();
}
@ -366,6 +349,11 @@ void S9xOpenGLDisplayDriver::update_texture_size (int width, int height)
glBufferData (GL_ARRAY_BUFFER, sizeof (GLfloat) * 16, coords, GL_STATIC_DRAW);
glBindBuffer (GL_ARRAY_BUFFER, 0);
}
else
{
glVertexPointer (2, GL_FLOAT, 0, coords);
glTexCoordPointer (2, GL_FLOAT, 0, &coords[8]);
}
}
}
@ -435,6 +423,9 @@ int S9xOpenGLDisplayDriver::opengl_defaults ()
glLoadIdentity ();
glMatrixMode (GL_MODELVIEW);
glLoadIdentity ();
glVertexPointer (2, GL_FLOAT, 0, coords);
glTexCoordPointer (2, GL_FLOAT, 0, &coords[8]);
}
else
{
@ -481,6 +472,12 @@ int S9xOpenGLDisplayDriver::opengl_defaults ()
glGenBuffers (1, &coord_buffer);
glBindBuffer (GL_ARRAY_BUFFER, coord_buffer);
glBufferData (GL_ARRAY_BUFFER, sizeof (GLfloat) * 16, coords, GL_STATIC_DRAW);
glEnableVertexAttribArray (0);
glVertexAttribPointer (0, 2, GL_FLOAT, GL_FALSE, 0, BUFFER_OFFSET (0));
glEnableVertexAttribArray (1);
glVertexAttribPointer (1, 2, GL_FLOAT, GL_FALSE, 0, BUFFER_OFFSET (32));
glBindBuffer (GL_ARRAY_BUFFER, 0);
}