static void setup_framebuffer(const GrGLInterface* gl, int screenWidth, int screenHeight) {
//Setup framebuffer
GrGLuint texture;
GR_GL_CALL(gl, PixelStorei(GR_GL_UNPACK_ROW_LENGTH, 0));
GR_GL_CALL(gl, PixelStorei(GR_GL_PACK_ROW_LENGTH, 0));
GR_GL_CALL(gl, GenTextures(1, &texture));
GR_GL_CALL(gl, ActiveTexture(GR_GL_TEXTURE15));
GR_GL_CALL(gl, BindTexture(GR_GL_TEXTURE_2D, texture));
GR_GL_CALL(gl, TexParameteri(GR_GL_TEXTURE_2D, GR_GL_TEXTURE_MAG_FILTER, GR_GL_NEAREST));
GR_GL_CALL(gl, TexParameteri(GR_GL_TEXTURE_2D, GR_GL_TEXTURE_MIN_FILTER, GR_GL_NEAREST));
GR_GL_CALL(gl, TexParameteri(GR_GL_TEXTURE_2D, GR_GL_TEXTURE_WRAP_S, GR_GL_CLAMP_TO_EDGE));
GR_GL_CALL(gl, TexParameteri(GR_GL_TEXTURE_2D, GR_GL_TEXTURE_WRAP_T, GR_GL_CLAMP_TO_EDGE));
GR_GL_CALL(gl, TexImage2D(GR_GL_TEXTURE_2D,
0, //level
GR_GL_RGBA8, //internal format
screenWidth, // width
screenHeight, // height
0, //border
GR_GL_RGBA, //format
GR_GL_UNSIGNED_BYTE, // type
NULL));
// bind framebuffer
GrGLuint framebuffer;
GR_GL_CALL(gl, BindTexture(GR_GL_TEXTURE_2D, 0));
GR_GL_CALL(gl, GenFramebuffers(1, &framebuffer));
GR_GL_CALL(gl, BindFramebuffer(GR_GL_FRAMEBUFFER, framebuffer));
GR_GL_CALL(gl, FramebufferTexture2D(GR_GL_FRAMEBUFFER,
GR_GL_COLOR_ATTACHMENT0,
GR_GL_TEXTURE_2D,
texture, 0));
GR_GL_CALL(gl, CheckFramebufferStatus(GR_GL_FRAMEBUFFER));
GR_GL_CALL(gl, Viewport(0, 0, screenWidth, screenHeight));
}
GrGLint GLTestContext::createTextureRectangle(int width, int height, GrGLenum internalFormat,
GrGLenum externalFormat, GrGLenum externalType,
GrGLvoid* data) {
if (!(kGL_GrGLStandard == fGL->fStandard && GrGLGetVersion(fGL) >= GR_GL_VER(3, 1)) &&
!fGL->fExtensions.has("GL_ARB_texture_rectangle")) {
return 0;
}
if (GrGLGetGLSLVersion(fGL) < GR_GLSL_VER(1, 40)) {
return 0;
}
GrGLuint id;
GR_GL_CALL(fGL, GenTextures(1, &id));
GR_GL_CALL(fGL, BindTexture(GR_GL_TEXTURE_RECTANGLE, id));
GR_GL_CALL(fGL, TexParameteri(GR_GL_TEXTURE_RECTANGLE, GR_GL_TEXTURE_MAG_FILTER,
GR_GL_NEAREST));
GR_GL_CALL(fGL, TexParameteri(GR_GL_TEXTURE_RECTANGLE, GR_GL_TEXTURE_MIN_FILTER,
GR_GL_NEAREST));
GR_GL_CALL(fGL, TexParameteri(GR_GL_TEXTURE_RECTANGLE, GR_GL_TEXTURE_WRAP_S,
GR_GL_CLAMP_TO_EDGE));
GR_GL_CALL(fGL, TexParameteri(GR_GL_TEXTURE_RECTANGLE, GR_GL_TEXTURE_WRAP_T,
GR_GL_CLAMP_TO_EDGE));
GR_GL_CALL(fGL, TexImage2D(GR_GL_TEXTURE_RECTANGLE, 0, internalFormat, width, height, 0,
externalFormat, externalType, data));
return id;
}
GL_APICALL void GL_APIENTRY glTexParameteri (GLenum target, GLenum pname, GLint param)
{
CONTEXT_EXEC(TexParameteri(target, pname, param));
}
/**
* \brief Initialize a (new or reused) OpenGL context.
* set global gl-related variables to their default values
*/
static int initGl(uint32_t d_width, uint32_t d_height) {
int scale_type = mipmap_gen ? GL_LINEAR_MIPMAP_NEAREST : GL_LINEAR;
autodetectGlExtensions();
gl_target = use_rectangle == 1 ? GL_TEXTURE_RECTANGLE : GL_TEXTURE_2D;
yuvconvtype = use_yuv | lscale << YUV_LUM_SCALER_SHIFT | cscale << YUV_CHROM_SCALER_SHIFT;
texSize(image_width, image_height, &texture_width, &texture_height);
Disable(GL_BLEND);
Disable(GL_DEPTH_TEST);
DepthMask(GL_FALSE);
Disable(GL_CULL_FACE);
Enable(gl_target);
DrawBuffer(vo_doublebuffering?GL_BACK:GL_FRONT);
TexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
mp_msg(MSGT_VO, MSGL_V, "[gl] Creating %dx%d texture...\n",
texture_width, texture_height);
if (is_yuv) {
int i;
int xs, ys;
mp_get_chroma_shift(image_format, &xs, &ys);
GenTextures(21, default_texs);
default_texs[21] = 0;
for (i = 0; i < 7; i++) {
ActiveTexture(GL_TEXTURE1 + i);
BindTexture(GL_TEXTURE_2D, default_texs[i]);
BindTexture(GL_TEXTURE_RECTANGLE, default_texs[i + 7]);
BindTexture(GL_TEXTURE_3D, default_texs[i + 14]);
}
ActiveTexture(GL_TEXTURE1);
glCreateClearTex(gl_target, gl_texfmt, gl_format, gl_type, scale_type,
texture_width >> xs, texture_height >> ys, 128);
if (mipmap_gen)
TexParameteri(gl_target, GL_GENERATE_MIPMAP, GL_TRUE);
ActiveTexture(GL_TEXTURE2);
glCreateClearTex(gl_target, gl_texfmt, gl_format, gl_type, scale_type,
texture_width >> xs, texture_height >> ys, 128);
if (mipmap_gen)
TexParameteri(gl_target, GL_GENERATE_MIPMAP, GL_TRUE);
ActiveTexture(GL_TEXTURE0);
BindTexture(gl_target, 0);
}
if (is_yuv || custom_prog)
{
if ((MASK_NOT_COMBINERS & (1 << use_yuv)) || custom_prog) {
if (!GenPrograms || !BindProgram) {
mp_msg(MSGT_VO, MSGL_ERR, "[gl] fragment program functions missing!\n");
} else {
GenPrograms(1, &fragprog);
BindProgram(GL_FRAGMENT_PROGRAM, fragprog);
}
}
update_yuvconv();
}
glCreateClearTex(gl_target, gl_texfmt, gl_format, gl_type, scale_type,
texture_width, texture_height, 0);
if (mipmap_gen)
TexParameteri(gl_target, GL_GENERATE_MIPMAP, GL_TRUE);
resize(d_width, d_height);
ClearColor( 0.0f,0.0f,0.0f,0.0f );
Clear( GL_COLOR_BUFFER_BIT );
if (SwapInterval && swap_interval >= 0)
SwapInterval(swap_interval);
return 1;
}
bool SkNativeSharedGLContext::init(const int width, const int height) {
if (fGL) {
fGL->unref();
this->destroyGLContext();
}
fGL = this->createGLContext();
if (fGL) {
const GrGLubyte* temp;
GrGLBinding bindingInUse = GrGLGetBindingInUse(this->gl());
if (!fGL->validate(bindingInUse) || !fExtensions.init(bindingInUse, fGL)) {
fGL = NULL;
this->destroyGLContext();
return false;
}
SK_GL_RET(*this, temp, GetString(GR_GL_VERSION));
const char* versionStr = reinterpret_cast<const char*>(temp);
GrGLVersion version = GrGLGetVersionFromString(versionStr);
// clear any existing GL erorrs
GrGLenum error;
do {
SK_GL_RET(*this, error, GetError());
} while (GR_GL_NO_ERROR != error);
SK_GL(*this, GenFramebuffers(1, &fFBO));
SK_GL(*this, BindFramebuffer(GR_GL_FRAMEBUFFER, fFBO));
SK_GL(*this, GenTextures(1, &fTextureID));
SK_GL(*this, BindTexture(GR_GL_TEXTURE_2D, fTextureID));
SK_GL(*this, TexImage2D(GR_GL_TEXTURE_2D, 0,
GR_GL_RGBA,
width, height, 0,
GR_GL_RGBA, GR_GL_UNSIGNED_BYTE,
NULL));
SK_GL(*this, TexParameteri(GR_GL_TEXTURE_2D, GR_GL_TEXTURE_WRAP_S, GR_GL_CLAMP_TO_EDGE));
SK_GL(*this, TexParameteri(GR_GL_TEXTURE_2D, GR_GL_TEXTURE_WRAP_T, GR_GL_CLAMP_TO_EDGE));
SK_GL(*this, TexParameteri(GR_GL_TEXTURE_2D, GR_GL_TEXTURE_MAG_FILTER, GR_GL_NEAREST));
SK_GL(*this, TexParameteri(GR_GL_TEXTURE_2D, GR_GL_TEXTURE_MIN_FILTER, GR_GL_NEAREST));
SK_GL(*this, FramebufferTexture2D(GR_GL_FRAMEBUFFER,
GR_GL_COLOR_ATTACHMENT0,
GR_GL_TEXTURE_2D,
fTextureID, 0));
SK_GL(*this, GenRenderbuffers(1, &fDepthStencilBufferID));
SK_GL(*this, BindRenderbuffer(GR_GL_RENDERBUFFER, fDepthStencilBufferID));
// Some drivers that support packed depth stencil will only succeed
// in binding a packed format an FBO. However, we can't rely on packed
// depth stencil being available.
bool supportsPackedDepthStencil;
if (kES2_GrGLBinding == bindingInUse) {
supportsPackedDepthStencil = this->hasExtension("GL_OES_packed_depth_stencil");
} else {
supportsPackedDepthStencil = version >= GR_GL_VER(3,0) ||
this->hasExtension("GL_EXT_packed_depth_stencil") ||
this->hasExtension("GL_ARB_framebuffer_object");
}
if (supportsPackedDepthStencil) {
// ES2 requires sized internal formats for RenderbufferStorage
// On Desktop we let the driver decide.
GrGLenum format = kES2_GrGLBinding == bindingInUse ?
GR_GL_DEPTH24_STENCIL8 :
GR_GL_DEPTH_STENCIL;
SK_GL(*this, RenderbufferStorage(GR_GL_RENDERBUFFER,
format,
width, height));
SK_GL(*this, FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
GR_GL_DEPTH_ATTACHMENT,
GR_GL_RENDERBUFFER,
fDepthStencilBufferID));
} else {
GrGLenum format = kES2_GrGLBinding == bindingInUse ?
GR_GL_STENCIL_INDEX8 :
GR_GL_STENCIL_INDEX;
SK_GL(*this, RenderbufferStorage(GR_GL_RENDERBUFFER,
format,
width, height));
}
SK_GL(*this, FramebufferRenderbuffer(GR_GL_FRAMEBUFFER,
GR_GL_STENCIL_ATTACHMENT,
GR_GL_RENDERBUFFER,
fDepthStencilBufferID));
SK_GL(*this, Viewport(0, 0, width, height));
SK_GL(*this, ClearStencil(0));
SK_GL(*this, Clear(GR_GL_STENCIL_BUFFER_BIT));
SK_GL_RET(*this, error, GetError());
GrGLenum status;
SK_GL_RET(*this, status, CheckFramebufferStatus(GR_GL_FRAMEBUFFER));
if (GR_GL_FRAMEBUFFER_COMPLETE != status ||
GR_GL_NO_ERROR != error) {
fFBO = 0;
fTextureID = 0;
fDepthStencilBufferID = 0;
fGL->unref();
fGL = NULL;
this->destroyGLContext();
return false;
} else {
return true;
}
}
return false;
}