bool KRTextureKTX::uploadTexture(GLenum target, int lod_max_dim, int ¤t_lod_max_dim, bool compress, bool premultiply_alpha)
{
int target_dim = lod_max_dim;
if(target_dim < m_min_lod_max_dim) target_dim = m_min_lod_max_dim;
if(m_blocks.size() == 0) {
return false;
}
// Determine how much memory will be consumed
int width = m_header.pixelWidth;
int height = m_header.pixelHeight;
long memoryRequired = 0;
long memoryTransferred = 0;
#if GL_EXT_texture_storage
if(target == GL_TEXTURE_CUBE_MAP_POSITIVE_X || target == GL_TEXTURE_2D) {
// Call glTexStorage2DEXT only for the first uploadTexture used when creating a texture
int level_count=0;
int max_lod_width=0;
int max_lod_height=0;
for(std::list<KRDataBlock *>::iterator itr = m_blocks.begin(); itr != m_blocks.end(); itr++) {
if(width <= target_dim && height <= target_dim) {
if(max_lod_width == 0) {
max_lod_width = width;
max_lod_height = height;
}
level_count++;
}
width = width >> 1;
if(width < 1) {
width = 1;
}
height = height >> 1;
if(height < 1) {
height = 1;
}
}
width = m_header.pixelWidth;
height = m_header.pixelHeight;
if(target == GL_TEXTURE_CUBE_MAP_POSITIVE_X) {
glTexStorage2DEXT(GL_TEXTURE_CUBE_MAP, level_count, (GLenum)m_header.glInternalFormat, max_lod_width, max_lod_height);
} else if(target == GL_TEXTURE_2D) {
glTexStorage2DEXT(target, level_count, (GLenum)m_header.glInternalFormat, max_lod_width, max_lod_height);
}
}
/* This function should only be used without mipmaps
and when data == NULL */
void gl_load_texture_image(GLenum target,
GLint level,
GLint internalFormat,
GLsizei width,
GLsizei height,
GLint border,
GLenum format,
GLenum type,
const GLvoid * data)
{
#ifndef HAVE_PSGL
#ifdef HAVE_OPENGLES2
if (gl_check_capability(GL_CAPS_TEX_STORAGE_EXT) && internalFormat != GL_BGRA_EXT)
{
gl_size_format(&internalFormat);
glTexStorage2DEXT(target, 1, internalFormat, width, height);
}
#else
if (gl_check_capability(GL_CAPS_TEX_STORAGE) && internalFormat != GL_BGRA_EXT)
{
gl_size_format(&internalFormat);
glTexStorage2D(target, 1, internalFormat, width, height);
}
#endif
else
#endif
{
#ifdef HAVE_OPENGLES
if (gl_check_capability(GL_CAPS_GLES3_SUPPORTED))
#endif
gl_size_format(&internalFormat);
glTexImage2D(target, level, internalFormat, width, height, border, format, type, data);
}
}
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 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();
}
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);
}
void OsmAnd::GPUAPI_OpenGLES2::allocateTexture2D(GLenum target, GLsizei levels, GLsizei width, GLsizei height, const TextureFormat format)
{
// Use glTexStorage2D if possible
if (isSupported_EXT_texture_storage)
{
GL_CHECK_PRESENT(glTexStorage2DEXT);
glTexStorage2DEXT(target, levels, static_cast<GLenum>(format), width, height);
GL_CHECK_RESULT;
return;
}
// Fallback to dumb allocation
GPUAPI_OpenGL::allocateTexture2D(target, levels, width, height, format);
}
GLuint TexSubImageBenchmark::createTexture()
{
// Use tightly packed data
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
// Generate a texture object
GLuint texture;
glGenTextures(1, &texture);
// Bind the texture object
glBindTexture(GL_TEXTURE_2D, texture);
glTexStorage2DEXT(GL_TEXTURE_2D, 1, GL_RGBA8, mParams.imageWidth, mParams.imageHeight);
// Set the filtering mode
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
return texture;
}