// Test that unmultipying and premultiplying the alpha is the same as doing neither
TEST_P(CopyTextureTest, UnmultiplyAndPremultplyAlpha)
{
if (!checkExtensions())
{
return;
}
GLColor rgbaPixels[4] = {GLColor(255u, 255u, 255u, 255u), GLColor(127u, 127u, 127u, 127u),
GLColor(63u, 63u, 63u, 127u), GLColor(255u, 255u, 255u, 0u)};
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, rgbaPixels);
glCopyTextureCHROMIUM(mTextures[0], mTextures[1], GL_RGBA, GL_UNSIGNED_BYTE, GL_FALSE, GL_TRUE,
GL_TRUE);
EXPECT_GL_NO_ERROR();
// Check that FB is complete.
EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER));
EXPECT_PIXEL_COLOR_NEAR(0, 0, GLColor(255, 255, 255, 255), 1.0);
EXPECT_PIXEL_COLOR_NEAR(1, 0, GLColor(127, 127, 127, 127), 1.0);
EXPECT_PIXEL_COLOR_NEAR(0, 1, GLColor(63, 63, 63, 127), 1.0);
EXPECT_PIXEL_COLOR_NEAR(1, 1, GLColor(255, 255, 255, 0), 1.0);
EXPECT_GL_NO_ERROR();
}
// Test that using an offset in CopySubTexture works correctly
TEST_P(CopyTextureTest, CopySubTextureOffset)
{
if (!checkExtensions())
{
return;
}
GLColor rgbaPixels[4 * 4] = {GLColor::red, GLColor::green, GLColor::blue, GLColor::black};
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, rgbaPixels);
GLColor transparentPixels[4 * 4] = {GLColor::transparentBlack, GLColor::transparentBlack,
GLColor::transparentBlack, GLColor::transparentBlack};
glBindTexture(GL_TEXTURE_2D, mTextures[1]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, transparentPixels);
glCopySubTextureCHROMIUM(mTextures[0], mTextures[1], 1, 1, 0, 0, 1, 1, false, false, false);
EXPECT_GL_NO_ERROR();
glCopySubTextureCHROMIUM(mTextures[0], mTextures[1], 1, 0, 1, 0, 1, 1, false, false, false);
EXPECT_GL_NO_ERROR();
glCopySubTextureCHROMIUM(mTextures[0], mTextures[1], 0, 1, 0, 1, 1, 1, false, false, false);
EXPECT_GL_NO_ERROR();
// Check that FB is complete.
EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER));
EXPECT_PIXEL_COLOR_EQ(0, 0, GLColor::transparentBlack);
EXPECT_PIXEL_COLOR_EQ(1, 1, GLColor::red);
EXPECT_PIXEL_COLOR_EQ(1, 0, GLColor::green);
EXPECT_PIXEL_COLOR_EQ(0, 1, GLColor::blue);
EXPECT_GL_NO_ERROR();
}
// Verify that GL_BIND_GENERATES_RESOURCE_CHROMIUM can be queried but not changed
TEST_P(BindGeneratesResourceTest, QueryValidation)
{
GLint intValue = 2;
glGetIntegerv(GL_BIND_GENERATES_RESOURCE_CHROMIUM, &intValue);
EXPECT_GL_NO_ERROR();
EXPECT_GL_FALSE(intValue);
float floatValue = 2.0f;
glGetFloatv(GL_BIND_GENERATES_RESOURCE_CHROMIUM, &floatValue);
EXPECT_GL_NO_ERROR();
EXPECT_EQ(floatValue, 0.0f);
GLboolean boolValue = GL_TRUE;
glGetBooleanv(GL_BIND_GENERATES_RESOURCE_CHROMIUM, &boolValue);
EXPECT_GL_NO_ERROR();
EXPECT_GL_FALSE(boolValue);
boolValue = glIsEnabled(GL_BIND_GENERATES_RESOURCE_CHROMIUM);
EXPECT_GL_NO_ERROR();
EXPECT_GL_FALSE(boolValue);
glEnable(GL_BIND_GENERATES_RESOURCE_CHROMIUM);
EXPECT_GL_ERROR(GL_INVALID_ENUM);
glDisable(GL_BIND_GENERATES_RESOURCE_CHROMIUM);
EXPECT_GL_ERROR(GL_INVALID_ENUM);
}
virtual void SetUp()
{
ANGLETest::SetUp();
glGenTextures(1, &mTexture2D);
glGenTextures(1, &mTextureCube);
glBindTexture(GL_TEXTURE_2D, mTexture2D);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
EXPECT_GL_NO_ERROR();
glBindTexture(GL_TEXTURE_CUBE_MAP, mTextureCube);
glTexStorage2DEXT(GL_TEXTURE_CUBE_MAP, 1, GL_RGBA8, 1, 1);
EXPECT_GL_NO_ERROR();
ASSERT_GL_NO_ERROR();
const std::string vertexShaderSource = SHADER_SOURCE
(
precision highp float;
attribute vec4 position;
varying vec2 texcoord;
uniform vec2 textureScale;
void main()
{
gl_Position = vec4(position.xy * textureScale, 0.0, 1.0);
texcoord = (position.xy * 0.5) + 0.5;
}
TEST_F(SRGBTextureTest, srgba_validation)
{
bool supported = extensionEnabled("GL_EXT_sRGB") || getClientVersion() == 3;
GLuint tex = 0;
glGenTextures(1, &tex);
glBindTexture(GL_TEXTURE_2D, tex);
GLubyte pixel[4] = { 0 };
glTexImage2D(GL_TEXTURE_2D, 0, GL_SRGB_ALPHA_EXT, 1, 1, 0, GL_SRGB_ALPHA_EXT, GL_UNSIGNED_BYTE, pixel);
if (supported)
{
EXPECT_GL_NO_ERROR();
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, GL_SRGB_ALPHA_EXT, GL_UNSIGNED_BYTE, pixel);
EXPECT_GL_NO_ERROR();
glGenerateMipmap(GL_TEXTURE_2D);
if (getClientVersion() == 2)
{
EXPECT_GL_ERROR(GL_INVALID_OPERATION);
}
else
{
EXPECT_GL_NO_ERROR();
}
}
else
{
EXPECT_GL_ERROR(GL_INVALID_ENUM);
}
glDeleteTextures(1, &tex);
}
// Test to ensure that the basic functionality of the extension works.
TEST_P(CopyTextureTest, BasicCopySubTexture)
{
if (!checkExtensions())
{
return;
}
GLColor pixels = GLColor::red;
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &pixels);
glBindTexture(GL_TEXTURE_2D, mTextures[1]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
glCopySubTextureCHROMIUM(mTextures[0], mTextures[1], 0, 0, 0, 0, 1, 1, false, false, false);
EXPECT_GL_NO_ERROR();
// Check that FB is complete.
EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER));
EXPECT_PIXEL_COLOR_EQ(0, 0, pixels);
EXPECT_GL_NO_ERROR();
}
GLColor16 ReadColor16(GLint x, GLint y)
{
GLColor16 actual;
glReadPixels((x), (y), 1, 1, GL_RGBA, GL_UNSIGNED_SHORT, &actual.R);
EXPECT_GL_NO_ERROR();
return actual;
}
void checkPixel(GLint x, GLint y, GLboolean renderedRed)
{
// By default, expect the pixel to be black.
GLint expectedRedChannel = 0;
GLint expectedGreenChannel = 0;
GLint scissorSize[4];
glGetIntegerv(GL_SCISSOR_BOX, scissorSize);
EXPECT_GL_NO_ERROR();
if (scissorSize[0] <= x && x < scissorSize[0] + scissorSize[2]
&& scissorSize[1] <= y && y < scissorSize[1] + scissorSize[3])
{
// If the pixel lies within the scissor rect, then it should have been cleared to green.
// If we rendered a red square on top of it, then the pixel should be red (the green channel will have been reset to 0).
expectedRedChannel = renderedRed ? 255 : 0;
expectedGreenChannel = renderedRed ? 0 : 255;
}
// If the pixel is within the bounds of the window, then we check it. Otherwise we skip it.
if (0 <= x && x < getWindowWidth() && 0 <= y && y < getWindowHeight())
{
EXPECT_PIXEL_EQ(x, y, expectedRedChannel, expectedGreenChannel, 0, 255);
}
}
// Test that invalid IDs in CopySubTexture are validated
TEST_P(CopyTextureTest, CopySubTextureInvalidTextureIds)
{
if (!checkExtensions())
{
return;
}
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
glBindTexture(GL_TEXTURE_2D, mTextures[1]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 3, 3, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
glCopySubTextureCHROMIUM(mTextures[0], 99993, 1, 1, 0, 0, 1, 1, false, false, false);
EXPECT_GL_ERROR(GL_INVALID_VALUE);
glCopySubTextureCHROMIUM(99994, mTextures[1], 1, 1, 0, 0, 1, 1, false, false, false);
EXPECT_GL_ERROR(GL_INVALID_VALUE);
glCopySubTextureCHROMIUM(99995, 99996, 1, 1, 0, 0, 1, 1, false, false, false);
EXPECT_GL_ERROR(GL_INVALID_VALUE);
glCopySubTextureCHROMIUM(mTextures[0], mTextures[1], 1, 1, 0, 0, 1, 1, false, false, false);
EXPECT_GL_NO_ERROR();
}
// Test validation of texture IDs
TEST_P(CopyCompressedTextureTest, InvalidTextureIds)
{
if (!checkExtensions())
{
return;
}
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glCompressedTexImage2D(GL_TEXTURE_2D, 0, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, 4, 4, 0,
sizeof(CompressedImageDXT1), CompressedImageDXT1);
ASSERT_GL_NO_ERROR();
glBindTexture(GL_TEXTURE_2D, mTextures[1]);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
ASSERT_GL_NO_ERROR();
glCompressedCopyTextureCHROMIUM(mTextures[0], 99993);
EXPECT_GL_ERROR(GL_INVALID_VALUE);
glCompressedCopyTextureCHROMIUM(99994, mTextures[1]);
EXPECT_GL_ERROR(GL_INVALID_VALUE);
glCompressedCopyTextureCHROMIUM(99995, 99996);
EXPECT_GL_ERROR(GL_INVALID_VALUE);
glCompressedCopyTextureCHROMIUM(mTextures[0], mTextures[1]);
EXPECT_GL_NO_ERROR();
}
// Test that invalid dimensions in CopySubTexture are validated
TEST_P(CopyTextureTest, CopySubTextureDimension)
{
if (!checkExtensions())
{
return;
}
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
glBindTexture(GL_TEXTURE_2D, mTextures[1]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 3, 3, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
glCopySubTextureCHROMIUM(mTextures[0], mTextures[1], 1, 1, 0, 0, 1, 1, false, false, false);
EXPECT_GL_NO_ERROR();
// xoffset < 0
glCopySubTextureCHROMIUM(mTextures[0], mTextures[1], -1, 1, 0, 0, 1, 1, false, false, false);
EXPECT_GL_ERROR(GL_INVALID_VALUE);
// x < 0
glCopySubTextureCHROMIUM(mTextures[0], mTextures[1], 1, 1, -1, 0, 1, 1, false, false, false);
EXPECT_GL_ERROR(GL_INVALID_VALUE);
// xoffset + width > dest_width
glCopySubTextureCHROMIUM(mTextures[0], mTextures[1], 2, 2, 0, 0, 2, 2, false, false, false);
EXPECT_GL_ERROR(GL_INVALID_VALUE);
// x + width > source_width
glCopySubTextureCHROMIUM(mTextures[0], mTextures[1], 0, 0, 1, 1, 2, 2, false, false, false);
EXPECT_GL_ERROR(GL_INVALID_VALUE);
}
GLColor ReadColor(GLint x, GLint y)
{
GLColor actual;
glReadPixels((x), (y), 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, &actual.R);
EXPECT_GL_NO_ERROR();
return actual;
}
// Test that textures cannot be generated on bind
TEST_P(BindGeneratesResourceTest, Textures)
{
glBindTexture(GL_TEXTURE_2D, 2);
EXPECT_GL_ERROR(GL_INVALID_OPERATION);
glBindTexture(GL_TEXTURE_2D, 0);
EXPECT_GL_NO_ERROR();
}
// Test that framebuffers cannot be generated on bind
TEST_P(BindGeneratesResourceTest, Framebuffers)
{
glBindFramebuffer(GL_FRAMEBUFFER, 2);
EXPECT_GL_ERROR(GL_INVALID_OPERATION);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
EXPECT_GL_NO_ERROR();
}
// Test that renderbuffer cannot be generated on bind
TEST_P(BindGeneratesResourceTest, Renderbuffers)
{
glBindRenderbuffer(GL_RENDERBUFFER, 2);
EXPECT_GL_ERROR(GL_INVALID_OPERATION);
glBindRenderbuffer(GL_RENDERBUFFER, 0);
EXPECT_GL_NO_ERROR();
}
// Test creating a pbuffer from a multisampled d3d surface and drawing with a program.
TEST_P(D3DTextureTestMS, DrawProgram)
{
EGLWindow *window = getEGLWindow();
EGLDisplay display = window->getDisplay();
constexpr size_t bufferSize = 32;
EGLSurface pbuffer = createPBuffer(bufferSize, bufferSize, EGL_NO_TEXTURE, EGL_NO_TEXTURE, 4,
static_cast<UINT>(D3D11_STANDARD_MULTISAMPLE_PATTERN));
ASSERT_EGL_SUCCESS();
ASSERT_NE(pbuffer, EGL_NO_SURFACE);
// Apply the Pbuffer and clear it to magenta
eglMakeCurrent(display, pbuffer, pbuffer, window->getContext());
ASSERT_EGL_SUCCESS();
glViewport(0, 0, static_cast<GLsizei>(bufferSize), static_cast<GLsizei>(bufferSize));
glClearColor(1.0f, 0.0f, 1.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
ASSERT_GL_NO_ERROR();
constexpr GLint testPoint = bufferSize / 2;
EXPECT_PIXEL_COLOR_EQ(testPoint, testPoint, GLColor::magenta);
// Apply the window surface
eglMakeCurrent(display, window->getSurface(), window->getSurface(), window->getContext());
ASSERT_EGL_SUCCESS();
glViewport(0, 0, getWindowWidth(), getWindowHeight());
ASSERT_EGL_SUCCESS();
// Draw a quad and verify that it is magenta
glUseProgram(mTextureProgramNoSampling);
EXPECT_GL_NO_ERROR();
drawQuad(mTextureProgramNoSampling, "position", 0.5f);
EXPECT_GL_NO_ERROR();
// Verify that magenta was drawn
EXPECT_PIXEL_COLOR_EQ(getWindowWidth() / 2, getWindowHeight() / 2, GLColor::magenta);
// Make current with fixture EGL to ensure the Surface can be released immediately.
getEGLWindow()->makeCurrent();
eglDestroySurface(display, pbuffer);
}
TEST_F(SRGBTextureTest, srgba_renderbuffer)
{
bool supported = extensionEnabled("GL_EXT_sRGB") || getClientVersion() == 3;
GLuint rbo = 0;
glGenRenderbuffers(1, &rbo);
glBindRenderbuffer(GL_RENDERBUFFER, rbo);
glRenderbufferStorage(GL_RENDERBUFFER, GL_SRGB8_ALPHA8_EXT, 1, 1);
if (supported)
{
EXPECT_GL_NO_ERROR();
}
else
{
EXPECT_GL_ERROR(GL_INVALID_ENUM);
// Make sure the rbo has a size for future tests
glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA8_OES, 1, 1);
EXPECT_GL_NO_ERROR();
}
GLuint fbo = 0;
glGenFramebuffers(1, &fbo);
glBindFramebuffer(GL_FRAMEBUFFER, fbo);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, rbo);
EXPECT_GL_NO_ERROR();
GLint colorEncoding = 0;
glGetFramebufferAttachmentParameteriv(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
GL_FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING_EXT, &colorEncoding);
if (supported)
{
EXPECT_GL_NO_ERROR();
EXPECT_EQ(GL_SRGB_EXT, colorEncoding);
}
else
{
EXPECT_GL_ERROR(GL_INVALID_ENUM);
}
glDeleteFramebuffers(1, &fbo);
glDeleteRenderbuffers(1, &rbo);
}
// Test that CopyTexture cannot redefine an immutable texture and CopySubTexture can copy data to
// immutable textures
TEST_P(CopyTextureTest, ImmutableTexture)
{
if (!checkExtensions())
{
return;
}
if (getClientMajorVersion() < 3 &&
(!extensionEnabled("GL_EXT_texture_storage") || !extensionEnabled("GL_OES_rgb8_rgba8")))
{
std::cout
<< "Test skipped due to missing ES3 or GL_EXT_texture_storage or GL_OES_rgb8_rgba8"
<< std::endl;
return;
}
GLColor pixels = GLColor::red;
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexStorage2DEXT(GL_TEXTURE_2D, 1, GL_RGBA8_OES, 1, 1);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, &pixels);
glBindTexture(GL_TEXTURE_2D, mTextures[1]);
glTexStorage2DEXT(GL_TEXTURE_2D, 1, GL_RGBA8_OES, 1, 1);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, mTextures[1], 0);
EXPECT_GL_NO_ERROR();
// Should generate an error when the texture is redefined
glCopyTextureCHROMIUM(mTextures[0], mTextures[1], GL_RGBA, GL_UNSIGNED_BYTE, false, false,
false);
EXPECT_GL_ERROR(GL_INVALID_OPERATION);
// Should succeed when using CopySubTexture
glCopySubTextureCHROMIUM(mTextures[0], mTextures[1], 0, 0, 0, 0, 1, 1, false, false, false);
EXPECT_GL_NO_ERROR();
// Check that FB is complete.
EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER));
EXPECT_PIXEL_COLOR_EQ(0, 0, pixels);
EXPECT_GL_NO_ERROR();
}
// Test to ensure that the destination texture is redefined if the properties are different.
TEST_P(CopyTextureTest, RedefineDestinationTexture)
{
if (!checkExtensions())
{
return;
}
GLColor pixels[4] = {GLColor::red, GLColor::red, GLColor::red, GLColor::red};
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 2, 2, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
glBindTexture(GL_TEXTURE_2D, mTextures[1]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_BGRA_EXT, 1, 1, 0, GL_BGRA_EXT, GL_UNSIGNED_BYTE, pixels);
EXPECT_GL_NO_ERROR();
// GL_INVALID_OPERATION due to "intrinsic format" != "internal format".
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
EXPECT_GL_ERROR(GL_INVALID_OPERATION);
// GL_INVALID_VALUE due to bad dimensions.
glTexSubImage2D(GL_TEXTURE_2D, 0, 1, 1, 1, 1, GL_BGRA_EXT, GL_UNSIGNED_BYTE, pixels);
EXPECT_GL_ERROR(GL_INVALID_VALUE);
// If the dest texture has different properties, glCopyTextureCHROMIUM()
// redefines them.
glCopyTextureCHROMIUM(mTextures[0], mTextures[1], GL_RGBA, GL_UNSIGNED_BYTE, false, false,
false);
EXPECT_GL_NO_ERROR();
// glTexSubImage2D() succeeds because mTextures[1] is redefined into 2x2
// dimension and GL_RGBA format.
glBindTexture(GL_TEXTURE_2D, mTextures[1]);
glTexSubImage2D(GL_TEXTURE_2D, 0, 1, 1, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
EXPECT_GL_NO_ERROR();
// Check that FB is complete.
EXPECT_GLENUM_EQ(GL_FRAMEBUFFER_COMPLETE, glCheckFramebufferStatus(GL_FRAMEBUFFER));
EXPECT_PIXEL_COLOR_EQ(1, 1, pixels[3]);
EXPECT_GL_NO_ERROR();
}
bool checkRenderbufferFormatSupport(GLenum internalFormat)
{
EXPECT_GL_NO_ERROR();
GLuint rb = 0;
glGenRenderbuffers(1, &rb);
glBindRenderbuffer(GL_RENDERBUFFER, rb);
glRenderbufferStorage(GL_RENDERBUFFER, internalFormat, 1, 1);
glDeleteRenderbuffers(1, &rb);
return (glGetError() == GL_NO_ERROR);
}
bool checkTexStorageFormatSupport(GLenum internalFormat)
{
EXPECT_GL_NO_ERROR();
GLuint tex = 0;
glGenTextures(1, &tex);
glBindTexture(GL_TEXTURE_2D, tex);
glTexStorage2DEXT(GL_TEXTURE_2D, 1, internalFormat, 1, 1);
glDeleteTextures(1, &tex);
return (glGetError() == GL_NO_ERROR);
}
bool checkTexImageFormatSupport(GLenum format, GLenum type)
{
EXPECT_GL_NO_ERROR();
GLuint tex = 0;
glGenTextures(1, &tex);
glBindTexture(GL_TEXTURE_2D, tex);
glTexImage2D(GL_TEXTURE_2D, 0, format, 1, 1, 0, format, type, NULL);
glDeleteTextures(1, &tex);
return (glGetError() == GL_NO_ERROR);
}
// Read default framebuffer with glCopyTexSubImage2D().
TEST_P(CopyTexImageTest, SubDefaultFramebuffer)
{
// Seems to be a bug in Mesa with the GLX back end: cannot read framebuffer until we draw to it.
// glCopyTexSubImage2D() below will fail without this clear.
glClear(GL_COLOR_BUFFER_BIT);
const GLint w = getWindowWidth(), h = getWindowHeight();
GLTexture tex;
glBindTexture(GL_TEXTURE_2D, tex);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, w, h);
EXPECT_GL_NO_ERROR();
}
// Test that buffers cannot be generated on bind
TEST_P(BindGeneratesResourceTest, Buffers)
{
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 2);
EXPECT_GL_ERROR(GL_INVALID_OPERATION);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
EXPECT_GL_NO_ERROR();
if (getClientMajorVersion() >= 3)
{
glBindBufferBase(GL_UNIFORM_BUFFER, 0, 3);
EXPECT_GL_ERROR(GL_INVALID_OPERATION);
glBindBufferBase(GL_UNIFORM_BUFFER, 0, 0);
EXPECT_GL_NO_ERROR();
glBindBufferRange(GL_UNIFORM_BUFFER, 0, 4, 1, 2);
EXPECT_GL_ERROR(GL_INVALID_OPERATION);
glBindBufferRange(GL_UNIFORM_BUFFER, 0, 0, 1, 2);
EXPECT_GL_NO_ERROR();
}
}
void runTest()
{
// Firstly ensure that no errors have been hit.
EXPECT_GL_NO_ERROR();
GLint viewportSize[4];
glGetIntegerv(GL_VIEWPORT, viewportSize);
// Clear to green. Might be a scissored clear, if scissorSize != window size
glClearColor(0, 1, 0, 1);
glClear(GL_COLOR_BUFFER_BIT);
// Draw a red quad centered in the middle of the viewport, with dimensions 25% of the size of the viewport.
drawQuad(mProgram, "position", 0.5f, 0.25f);
GLint centerViewportX = viewportSize[0] + (viewportSize[2] / 2);
GLint centerViewportY = viewportSize[1] + (viewportSize[3] / 2);
GLint redQuadLeftSideX = viewportSize[0] + viewportSize[2] * 3 / 8;
GLint redQuadRightSideX = viewportSize[0] + viewportSize[2] * 5 / 8;
GLint redQuadTopSideY = viewportSize[1] + viewportSize[3] * 3 / 8;
GLint redQuadBottomSideY = viewportSize[1] + viewportSize[3] * 5 / 8;
// The midpoint of the viewport should be red.
checkPixel(centerViewportX, centerViewportY, true);
// Pixels just inside the red quad should be red.
checkPixel(redQuadLeftSideX, redQuadTopSideY, true);
checkPixel(redQuadLeftSideX, redQuadBottomSideY - 1, true);
checkPixel(redQuadRightSideX - 1, redQuadTopSideY, true);
checkPixel(redQuadRightSideX - 1, redQuadBottomSideY - 1, true);
// Pixels just outside the red quad shouldn't be red.
checkPixel(redQuadLeftSideX - 1, redQuadTopSideY - 1, false);
checkPixel(redQuadLeftSideX - 1, redQuadBottomSideY, false);
checkPixel(redQuadRightSideX, redQuadTopSideY - 1, false);
checkPixel(redQuadRightSideX, redQuadBottomSideY, false);
// Pixels just within the viewport shouldn't be red.
checkPixel(viewportSize[0], viewportSize[1], false);
checkPixel(viewportSize[0], viewportSize[1] + viewportSize[3] - 1, false);
checkPixel(viewportSize[0] + viewportSize[2] - 1, viewportSize[1], false);
checkPixel(viewportSize[0] + viewportSize[2] - 1, viewportSize[1] + viewportSize[3] - 1, false);
}
// Test to ensure that the basic functionality of the extension works.
TEST_P(CopyTextureTest, BasicCopyTexture)
{
if (!checkExtensions())
{
return;
}
GLColor pixels = GLColor::red;
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, &pixels);
glCopyTextureCHROMIUM(mTextures[0], mTextures[1], GL_RGBA, GL_UNSIGNED_BYTE, false, false,
false);
EXPECT_GL_NO_ERROR();
EXPECT_PIXEL_COLOR_EQ(0, 0, pixels);
}
// The test verifies that glCopyTexSubImage2D generates a GL_INVALID_OPERATION error
// when the read buffer is GL_NONE.
// Reference: GLES 3.0.4, Section 3.8.5 Alternate Texture Image Specification Commands
TEST_P(CopyTexImageTestES3, ReadBufferIsNone)
{
GLfloat color[] = {
0.25f, 1.0f, 0.75f, 0.5f,
};
GLuint fbo = createFramebuffer(GL_RGBA, GL_UNSIGNED_BYTE, color);
GLuint tex = createTextureFromCopyTexImage(fbo, GL_RGBA);
glBindFramebuffer(GL_FRAMEBUFFER, fbo);
glBindTexture(GL_TEXTURE_2D, tex);
glReadBuffer(GL_NONE);
EXPECT_GL_NO_ERROR();
glCopyTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, 0, 0, 4, 4);
EXPECT_GL_ERROR(GL_INVALID_OPERATION);
glDeleteFramebuffers(1, &fbo);
glDeleteTextures(1, &tex);
}
// Check that invalid internal formats return errors.
TEST_P(CopyTextureTest, InternalFormatNotSupported)
{
if (!checkExtensions())
{
return;
}
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, nullptr);
EXPECT_GL_NO_ERROR();
std::vector<GLint> unsupportedDestFormats;
unsupportedDestFormats.push_back(GL_ALPHA);
unsupportedDestFormats.push_back(GL_LUMINANCE);
unsupportedDestFormats.push_back(GL_LUMINANCE_ALPHA);
if (!extensionEnabled("GL_EXT_texture_format_BGRA8888"))
{
unsupportedDestFormats.push_back(GL_BGRA_EXT);
}
// Check unsupported format reports an error.
for (GLint unsupportedDestFormat : unsupportedDestFormats)
{
glCopyTextureCHROMIUM(mTextures[0], mTextures[1], unsupportedDestFormat, GL_UNSIGNED_BYTE,
false, false, false);
EXPECT_GL_ERROR(GL_INVALID_OPERATION);
}
for (GLint unsupportedDestFormat : unsupportedDestFormats)
{
glBindTexture(GL_TEXTURE_2D, mTextures[1]);
glTexImage2D(GL_TEXTURE_2D, 0, unsupportedDestFormat, 1, 1, 0, unsupportedDestFormat,
GL_UNSIGNED_BYTE, nullptr);
glCopySubTextureCHROMIUM(mTextures[0], mTextures[1], 0, 0, 0, 0, 1, 1, false, false, false);
EXPECT_GL_ERROR(GL_INVALID_OPERATION);
}
}
// Test creating a pbuffer from a d3d surface and binding it to a texture
TEST_P(D3DTextureTest, BindTexImage)
{
if (!valid())
{
return;
}
EGLWindow *window = getEGLWindow();
EGLDisplay display = window->getDisplay();
const size_t bufferSize = 32;
EGLSurface pbuffer =
createPBuffer(bufferSize, bufferSize, EGL_TEXTURE_RGBA, EGL_TEXTURE_2D, 1, 0);
ASSERT_EGL_SUCCESS();
ASSERT_NE(pbuffer, EGL_NO_SURFACE);
// Apply the Pbuffer and clear it to purple
eglMakeCurrent(display, pbuffer, pbuffer, window->getContext());
ASSERT_EGL_SUCCESS();
glViewport(0, 0, static_cast<GLsizei>(bufferSize), static_cast<GLsizei>(bufferSize));
glClearColor(1.0f, 0.0f, 1.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
ASSERT_GL_NO_ERROR();
EXPECT_PIXEL_EQ(static_cast<GLint>(bufferSize) / 2, static_cast<GLint>(bufferSize) / 2, 255, 0,
255, 255);
// Apply the window surface
eglMakeCurrent(display, window->getSurface(), window->getSurface(), window->getContext());
// Create a texture and bind the Pbuffer to it
GLuint texture = 0;
glGenTextures(1, &texture);
glBindTexture(GL_TEXTURE_2D, texture);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
EXPECT_GL_NO_ERROR();
eglBindTexImage(display, pbuffer, EGL_BACK_BUFFER);
glViewport(0, 0, getWindowWidth(), getWindowHeight());
ASSERT_EGL_SUCCESS();
// Draw a quad and verify that it is purple
glUseProgram(mTextureProgram);
glUniform1i(mTextureUniformLocation, 0);
drawQuad(mTextureProgram, "position", 0.5f);
EXPECT_GL_NO_ERROR();
// Unbind the texture
eglReleaseTexImage(display, pbuffer, EGL_BACK_BUFFER);
ASSERT_EGL_SUCCESS();
// Verify that purple was drawn
EXPECT_PIXEL_EQ(getWindowWidth() / 2, getWindowHeight() / 2, 255, 0, 255, 255);
glDeleteTextures(1, &texture);
// Make current with fixture EGL to ensure the Surface can be released immediately.
getEGLWindow()->makeCurrent();
eglDestroySurface(display, pbuffer);
}
// Test validation of internal formats in CopyTexture and CopySubTexture
TEST_P(CopyTextureTest, InternalFormat)
{
if (!checkExtensions())
{
return;
}
std::vector<GLint> sourceFormats;
sourceFormats.push_back(GL_ALPHA);
sourceFormats.push_back(GL_RGB);
sourceFormats.push_back(GL_RGBA);
sourceFormats.push_back(GL_LUMINANCE);
sourceFormats.push_back(GL_LUMINANCE_ALPHA);
std::vector<GLint> destFormats;
destFormats.push_back(GL_RGB);
destFormats.push_back(GL_RGBA);
if (extensionEnabled("GL_EXT_texture_format_BGRA8888"))
{
sourceFormats.push_back(GL_BGRA_EXT);
destFormats.push_back(GL_BGRA_EXT);
}
// Test with glCopyTexture
for (GLint sourceFormat : sourceFormats)
{
for (GLint destFormat : destFormats)
{
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, sourceFormat, 1, 1, 0, sourceFormat, GL_UNSIGNED_BYTE,
nullptr);
EXPECT_GL_NO_ERROR();
glCopyTextureCHROMIUM(mTextures[0], mTextures[1], destFormat, GL_UNSIGNED_BYTE, false,
false, false);
EXPECT_GL_NO_ERROR();
}
}
// Test with glCopySubTexture
for (GLint sourceFormat : sourceFormats)
{
for (GLint destFormat : destFormats)
{
glBindTexture(GL_TEXTURE_2D, mTextures[0]);
glTexImage2D(GL_TEXTURE_2D, 0, sourceFormat, 1, 1, 0, sourceFormat, GL_UNSIGNED_BYTE,
nullptr);
EXPECT_GL_NO_ERROR();
glBindTexture(GL_TEXTURE_2D, mTextures[1]);
glTexImage2D(GL_TEXTURE_2D, 0, destFormat, 1, 1, 0, destFormat, GL_UNSIGNED_BYTE,
nullptr);
EXPECT_GL_NO_ERROR();
glCopySubTextureCHROMIUM(mTextures[0], mTextures[1], 0, 0, 0, 0, 1, 1, false, false,
false);
EXPECT_GL_NO_ERROR();
}
}
}
