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Examples: OpenGL*: Savnig/restoring existing scissor rectangle for completeness (#807)

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ocornut
2016-09-05 23:39:52 +02:00
parent 031d4e689d
commit bc57fd5d1d
4 changed files with 8 additions and 0 deletions
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2
examples/sdl_opengl2_example/imgui_impl_sdl.cpp
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@ -35,6 +35,7 @@ void ImGui_ImplSdl_RenderDrawLists(ImDrawData* draw_data)
// Setup render state: alpha-blending enabled, no face culling, no depth testing, scissor enabled, vertex/texcoord/color pointers.
GLint last_texture; glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
GLint last_viewport[4]; glGetIntegerv(GL_VIEWPORT, last_viewport);
GLint last_scissor_box[4]; glGetIntegerv(GL_SCISSOR_BOX, last_scissor_box);
glPushAttrib(GL_ENABLE_BIT | GL_COLOR_BUFFER_BIT | GL_TRANSFORM_BIT);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
@ -97,6 +98,7 @@ void ImGui_ImplSdl_RenderDrawLists(ImDrawData* draw_data)
glPopMatrix();
glPopAttrib();
glViewport(last_viewport[0], last_viewport[1], (GLsizei)last_viewport[2], (GLsizei)last_viewport[3]);
glScissor(last_scissor_box[0], last_scissor_box[1], (GLsizei)last_scissor_box[2], (GLsizei)last_scissor_box[3]);
}
static const char* ImGui_ImplSdl_GetClipboardText()