// Read framebuffer to 'pixelsOut' via glCopyTexImage2D and GL_TEXTURE_2D.
void TestCopyTexImage2D(int x, int y, int, PixelRect *pixelsOut)
{
// Init texture with given pixels.
GLTexture destTexture;
pixelsOut->toTexture2D(GL_TEXTURE_2D, destTexture.get());
// Read framebuffer -> texture -> 'pixelsOut'
glCopyTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, x, y, kReadWidth, kReadHeight, 0);
readTexture2D(GL_TEXTURE_2D, destTexture.get(), kReadWidth, kReadHeight, pixelsOut);
}
// Read framebuffer to 'pixelsOut' via glCopyTexSubImage2D and cube map.
void TestCopyTexSubImageCube(int x, int y, int, PixelRect *pixelsOut)
{
// Init texture with given pixels.
GLTexture destTexture;
pixelsOut->toTexture2D(GL_TEXTURE_CUBE_MAP, destTexture.get());
// Read framebuffer -> texture -> 'pixelsOut'
glCopyTexSubImage2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X, 0, 0, 0, x, y, kReadWidth, kReadHeight);
readTexture2D(GL_TEXTURE_CUBE_MAP_POSITIVE_X, destTexture.get(), kReadWidth, kReadHeight,
pixelsOut);
}
// Read framebuffer to 'pixelsOut' via glCopyTexSubImage3D.
void TestCopyTexSubImage3D(int x, int y, int z, PixelRect *pixelsOut)
{
// Init texture with given pixels.
GLTexture destTexture;
pixelsOut->toTexture3D(destTexture.get(), kTextureDepth);
// Read framebuffer -> texture -> 'pixelsOut'
glCopyTexSubImage3D(GL_TEXTURE_3D, 0, 0, 0, z, x, y, kReadWidth, kReadHeight);
readTexture3D(destTexture, kReadWidth, kReadHeight, z, pixelsOut);
}
EXPECT_GL_NO_ERROR();
glDeleteProgram(program);
}
class DrawBuffersTestES3 : public DrawBuffersTest
{};
// Test that binding multiple layers of a 3D texture works correctly
TEST_P(DrawBuffersTestES3, 3DTextures)
{
ANGLE_SKIP_TEST_IF(!setupTest());
GLTexture texture;
glBindTexture(GL_TEXTURE_3D, texture.get());
glTexImage3D(GL_TEXTURE_3D, 0, GL_RGBA, getWindowWidth(), getWindowHeight(), getWindowWidth(),
0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
glFramebufferTextureLayer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, texture.get(), 0, 0);
glFramebufferTextureLayer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT1, texture.get(), 0, 1);
glFramebufferTextureLayer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT2, texture.get(), 0, 2);
glFramebufferTextureLayer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT3, texture.get(), 0, 3);
bool flags[8] = {true, true, true, true, false};
GLuint program;
setupMRTProgram(flags, &program);
const GLenum bufs[] = {
GL_COLOR_ATTACHMENT0,