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Examples: OpenGL3: Saving/restoring glActiveTexture() state (#602)

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ocornut 2016-04-30 19:02:19 +02:00
parent 7406d64c64
commit bfb2dc2290
2 changed files with 4 additions and 0 deletions
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2
examples/opengl3_example/imgui_impl_glfw_gl3.cpp
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@ -46,6 +46,7 @@ void ImGui_ImplGlfwGL3_RenderDrawLists(ImDrawData* draw_data)
// Backup GL state // Backup GL state
GLint last_program; glGetIntegerv(GL_CURRENT_PROGRAM, &last_program); GLint last_program; glGetIntegerv(GL_CURRENT_PROGRAM, &last_program);
GLint last_texture; glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture); GLint last_texture; glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
GLint last_active_texture; glGetIntegerv(GL_ACTIVE_TEXTURE, &last_active_texture);
GLint last_array_buffer; glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &last_array_buffer); GLint last_array_buffer; glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &last_array_buffer);
GLint last_element_array_buffer; glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING, &last_element_array_buffer); GLint last_element_array_buffer; glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING, &last_element_array_buffer);
GLint last_vertex_array; glGetIntegerv(GL_VERTEX_ARRAY_BINDING, &last_vertex_array); GLint last_vertex_array; glGetIntegerv(GL_VERTEX_ARRAY_BINDING, &last_vertex_array);
@ -111,6 +112,7 @@ void ImGui_ImplGlfwGL3_RenderDrawLists(ImDrawData* draw_data)
// Restore modified GL state // Restore modified GL state
glUseProgram(last_program); glUseProgram(last_program);
glActiveTexture(last_active_texture);
glBindTexture(GL_TEXTURE_2D, last_texture); glBindTexture(GL_TEXTURE_2D, last_texture);
glBindVertexArray(last_vertex_array); glBindVertexArray(last_vertex_array);
glBindBuffer(GL_ARRAY_BUFFER, last_array_buffer); glBindBuffer(GL_ARRAY_BUFFER, last_array_buffer);

2
examples/sdl_opengl3_example/imgui_impl_sdl_gl3.cpp
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@ -40,6 +40,7 @@ void ImGui_ImplSdlGL3_RenderDrawLists(ImDrawData* draw_data)
// Backup GL state // Backup GL state
GLint last_program; glGetIntegerv(GL_CURRENT_PROGRAM, &last_program); GLint last_program; glGetIntegerv(GL_CURRENT_PROGRAM, &last_program);
GLint last_texture; glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture); GLint last_texture; glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
GLint last_active_texture; glGetIntegerv(GL_ACTIVE_TEXTURE, &last_active_texture);
GLint last_array_buffer; glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &last_array_buffer); GLint last_array_buffer; glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &last_array_buffer);
GLint last_element_array_buffer; glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING, &last_element_array_buffer); GLint last_element_array_buffer; glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING, &last_element_array_buffer);
GLint last_vertex_array; glGetIntegerv(GL_VERTEX_ARRAY_BINDING, &last_vertex_array); GLint last_vertex_array; glGetIntegerv(GL_VERTEX_ARRAY_BINDING, &last_vertex_array);
@ -105,6 +106,7 @@ void ImGui_ImplSdlGL3_RenderDrawLists(ImDrawData* draw_data)
// Restore modified GL state // Restore modified GL state
glUseProgram(last_program); glUseProgram(last_program);
glActiveTexture(last_active_texture);
glBindTexture(GL_TEXTURE_2D, last_texture); glBindTexture(GL_TEXTURE_2D, last_texture);
glBindVertexArray(last_vertex_array); glBindVertexArray(last_vertex_array);
glBindBuffer(GL_ARRAY_BUFFER, last_array_buffer); glBindBuffer(GL_ARRAY_BUFFER, last_array_buffer);