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SDL: Fix software renderer image uploads in OpenGL

This commit is contained in:
Connor McLaughlin 2020-04-11 18:54:20 +10:00
parent a682b720e1
commit 4fd5d6ca4f
1 changed files with 9 additions and 2 deletions
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11
src/duckstation-sdl/opengl_host_display.cpp
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@ -118,14 +118,21 @@ void OpenGLHostDisplay::UpdateTexture(HostDisplayTexture* texture, u32 x, u32 y,
const void* data, u32 data_stride)
{
OpenGLDisplayWidgetTexture* tex = static_cast<OpenGLDisplayWidgetTexture*>(texture);
Assert(data_stride == (width * sizeof(u32)));
Assert((data_stride % sizeof(u32)) == 0);
GLint old_texture_binding = 0;
GLint old_texture_binding = 0, old_alignment = 0, old_row_length = 0;
glGetIntegerv(GL_TEXTURE_BINDING_2D, &old_texture_binding);
glGetIntegerv(GL_UNPACK_ALIGNMENT, &old_alignment);
glGetIntegerv(GL_UNPACK_ROW_LENGTH, &old_row_length);
glBindTexture(GL_TEXTURE_2D, tex->GetGLID());
glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
glPixelStorei(GL_UNPACK_ROW_LENGTH, data_stride / sizeof(u32));
glTexSubImage2D(GL_TEXTURE_2D, 0, x, y, width, height, GL_RGBA, GL_UNSIGNED_BYTE, data);
glPixelStorei(GL_UNPACK_ALIGNMENT, old_alignment);
glPixelStorei(GL_UNPACK_ROW_LENGTH, old_row_length);
glBindTexture(GL_TEXTURE_2D, old_texture_binding);
}