Provide alternative constructor for Nokia internal use (PlatSim compatibility).
/* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description:
*
*/
#include "degl.h"
#include "context.h"
#include "ColorDescriptor.h"
#include "ImageTarget.h"
void* deglGetHostProcAddress(char const* proc)
{
return EGLtoGLES2Interface::GetEGLInterface()->GetHostProcAddress(proc);
}
DGLContext* deglGetCurrentContext(void)
{
DGLContext* ctx = static_cast<DGLContext*>(EGLtoGLES2Interface::GetEGLInterface()->GetGLESContext());
return ctx;
}
int deglLockSurface(int read, int draw)
{
return EGLtoGLES2Interface::GetEGLInterface()->LockGLESSurface(!!read, !!draw);
}
int deglUnlockSurface(void)
{
return EGLtoGLES2Interface::GetEGLInterface()->UnlockGLESSurface();
}
static EImageTarget dglGLenumToImageTarget(GLenum target)
{
switch(target)
{
case GL_TEXTURE_2D:
return IMAGE_TARGET_TEXTURE_2D;
case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
return IMAGE_TARGET_TEXTURE_CUBE_MAP_POSITIVE_X;
case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
return IMAGE_TARGET_TEXTURE_CUBE_MAP_NEGATIVE_X;
case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
return IMAGE_TARGET_TEXTURE_CUBE_MAP_POSITIVE_Y;
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
return IMAGE_TARGET_TEXTURE_CUBE_MAP_NEGATIVE_Y;
case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
return IMAGE_TARGET_TEXTURE_CUBE_MAP_POSITIVE_Z;
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
return IMAGE_TARGET_TEXTURE_CUBE_MAP_NEGATIVE_Z;
case GL_RENDERBUFFER:
return IMAGE_TARGET_RENDERBUFFER;
default:
DGLES2_ASSERT(false);
}
// Not reached.
return (EImageTarget)-1;
}
void deglRegisterImageTarget(GLeglImageOES image, GLenum target, GLuint name)
{
EGLtoGLES2Interface::GetEGLInterface()->RegisterImageTarget(image, dglGLenumToImageTarget(target), (void*)name);
}
void deglUnregisterImageTarget(GLeglImageOES image, GLenum target, GLuint name)
{
EGLtoGLES2Interface::GetEGLInterface()->UnregisterImageTarget(image, dglGLenumToImageTarget(target), (void*)name);
}
void deglUpdateImageSiblings(GLeglImageOES image, GLenum target, GLuint name)
{
EGLtoGLES2Interface::GetEGLInterface()->UpdateImageSiblings(image, dglGLenumToImageTarget(target), (void*)name);
}
void deglReleaseTexImage(void* surface, int name, int level)
{
EGLtoGLES2Interface::GetEGLInterface()->ReleaseTexImage(surface, name, level);
}
static SurfaceDescriptor dglCreateSurfaceDescriptor(int redBits, int redShift, int greenBits, int greenShift, int blueBits, int blueShift, int alphaBits, int alphaShift, int luminanceBits, int luminanceShift, CColorDescriptor::ColorFormat format, int bpp)
{
SurfaceDescriptor desc;
desc.m_colorDescriptor.m_redSize = redBits;
desc.m_colorDescriptor.m_greenSize = greenBits;
desc.m_colorDescriptor.m_blueSize = blueBits;
desc.m_colorDescriptor.m_alphaSize = alphaBits;
desc.m_colorDescriptor.m_luminanceSize = luminanceBits;
desc.m_redShift = redShift;
desc.m_greenShift = greenShift;
desc.m_blueShift = blueShift;
desc.m_alphaShift = alphaShift;
desc.m_luminanceShift = luminanceShift;
desc.m_colorDescriptor.m_format = format;
desc.m_colorDescriptor.m_bpp = bpp;
return desc;
}
typedef struct
{
SurfaceDescriptor desc;
GLenum internal_format;
GLenum data_format;
GLenum data_type;
} DescToEnumMapping;
static bool dglIsDescEqualToMapping(const SurfaceDescriptor& desc, const DescToEnumMapping& mapping)
{
if ((desc.m_colorDescriptor.m_redSize == mapping.desc.m_colorDescriptor.m_redSize) &&
(desc.m_colorDescriptor.m_greenSize == mapping.desc.m_colorDescriptor.m_greenSize) &&
(desc.m_colorDescriptor.m_blueSize == mapping.desc.m_colorDescriptor.m_blueSize) &&
(desc.m_colorDescriptor.m_alphaSize == mapping.desc.m_colorDescriptor.m_alphaSize) &&
(desc.m_colorDescriptor.m_luminanceSize == mapping.desc.m_colorDescriptor.m_luminanceSize) &&
(desc.m_redShift == mapping.desc.m_redShift) &&
(desc.m_greenShift == mapping.desc.m_greenShift) &&
(desc.m_blueShift == mapping.desc.m_blueShift) &&
(desc.m_alphaShift == mapping.desc.m_alphaShift) &&
(desc.m_luminanceShift == mapping.desc.m_luminanceShift) &&
(desc.m_colorDescriptor.m_format == mapping.desc.m_colorDescriptor.m_format) &&
(desc.m_colorDescriptor.m_bpp == mapping.desc.m_colorDescriptor.m_bpp))
return true;
return false;
}
static void dglSurfaceDescriptorToGLEnums(const SurfaceDescriptor& desc, GLenum& internal_format, GLenum& data_format, GLenum& data_type)
{
static const DescToEnumMapping map[] = {
/* RGB{A,X} channel ordering */
// sRGBX_8888
{dglCreateSurfaceDescriptor(8, 24, 8, 16, 8, 8, 0, 0, 0, 0, CColorDescriptor::sRGBA, 32), GL_SRGB8, GL_RGBA, GL_UNSIGNED_BYTE},
// sRGBA_8888
{dglCreateSurfaceDescriptor(8, 24, 8, 16, 8, 8, 8, 0, 0, 0, CColorDescriptor::sRGBA, 32), GL_SRGB8_ALPHA8, GL_RGBA, GL_UNSIGNED_BYTE},
// sRGBA_8888_PRE
{dglCreateSurfaceDescriptor(8, 24, 8, 16, 8, 8, 8, 0, 0, 0, CColorDescriptor::sRGBA_PRE, 32), GL_SRGB8_ALPHA8, GL_RGBA, GL_UNSIGNED_BYTE},
// sRGB_565
{dglCreateSurfaceDescriptor(5, 11, 6, 5, 5, 0, 0, 0, 0, 0, CColorDescriptor::sRGBA, 16), GL_SRGB8, GL_RGB, GL_UNSIGNED_SHORT_5_6_5},
// sRGBA_5551
{dglCreateSurfaceDescriptor(5, 11, 5, 6, 5, 1, 1, 0, 0, 0, CColorDescriptor::sRGBA, 16), GL_SRGB8_ALPHA8, GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1},
// sRGBA_4444
{dglCreateSurfaceDescriptor(4, 12, 4, 8, 4, 4, 4, 0, 0, 0, CColorDescriptor::sRGBA, 16), GL_SRGB8_ALPHA8, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4},
// sL_8
{dglCreateSurfaceDescriptor(0, 0, 0, 0, 0, 0, 0, 0, 8, 0, CColorDescriptor::sLA, 8), GL_SLUMINANCE8, GL_LUMINANCE, GL_UNSIGNED_BYTE},
// lRGBX_8888
{dglCreateSurfaceDescriptor(8, 24, 8, 16, 8, 8, 0, 0, 0, 0, CColorDescriptor::lRGBA, 32), GL_RGB8, GL_RGBA, GL_UNSIGNED_BYTE},
// lRGBA_8888
{dglCreateSurfaceDescriptor(8, 24, 8, 16, 8, 8, 8, 0, 0, 0, CColorDescriptor::lRGBA, 32), GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE},
// lRGBA_8888_PRE
{dglCreateSurfaceDescriptor(8, 24, 8, 16, 8, 8, 8, 0, 0, 0, CColorDescriptor::lRGBA_PRE, 32), GL_RGBA8, GL_RGBA, GL_UNSIGNED_BYTE},
// lL_8
{dglCreateSurfaceDescriptor(0, 0, 0, 0, 0, 0, 0, 0, 8, 0, CColorDescriptor::lLA, 8), GL_LUMINANCE8, GL_LUMINANCE, GL_UNSIGNED_BYTE},
// A_8
{dglCreateSurfaceDescriptor(0, 0, 0, 0, 0, 0, 8, 0, 0, 0, CColorDescriptor::lRGBA, 8), GL_ALPHA8, GL_ALPHA, GL_UNSIGNED_BYTE},
// These should be converted to a compatible format by VG.
/*
// BW_1
{dglCreateSurfaceDescriptor(0, 0, 0, 0, 0, 0, 0, 0, 1, 0, CColorDescriptor::lLA, 1), GL_NONE, GL_NONE, GL_NONE},
// A_1
{dglCreateSurfaceDescriptor(0, 0, 0, 0, 0, 0, 1, 0, 0, 0, CColorDescriptor::lRGBA, 1), GL_NONE, GL_NONE, GL_NONE},
// A_4
{dglCreateSurfaceDescriptor(0, 0, 0, 0, 0, 0, 4, 0, 0, 0, CColorDescriptor::lRGBA, 4), GL_NONE, GL_NONE, GL_NONE},
*/
/* {A,X}RGB channel ordering */
// sXRGB_8888
{dglCreateSurfaceDescriptor(8, 16, 8, 8, 8, 0, 0, 0, 0, 0, CColorDescriptor::sRGBA, 32), GL_SRGB8, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV},
// sARGB_8888
{dglCreateSurfaceDescriptor(8, 16, 8, 8, 8, 0, 8, 24, 0, 0, CColorDescriptor::sRGBA, 32), GL_SRGB8_ALPHA8, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV},
// sARGB_8888_PRE
{dglCreateSurfaceDescriptor(8, 16, 8, 8, 8, 0, 8, 24, 0, 0, CColorDescriptor::sRGBA_PRE, 32), GL_SRGB8_ALPHA8, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV},
// sARGB_1555
{dglCreateSurfaceDescriptor(5, 10, 5, 5, 5, 0, 1, 15, 0, 0, CColorDescriptor::sRGBA, 16), GL_SRGB8_ALPHA8, GL_BGRA, GL_UNSIGNED_SHORT_1_5_5_5_REV},
// sARGB_4444
{dglCreateSurfaceDescriptor(4, 8, 4, 4, 4, 0, 4, 12, 0, 0, CColorDescriptor::sRGBA, 16), GL_SRGB8_ALPHA8, GL_BGRA, GL_UNSIGNED_SHORT_4_4_4_4_REV},
// lXRGB_8888
{dglCreateSurfaceDescriptor(8, 16, 8, 8, 8, 0, 0, 0, 0, 0, CColorDescriptor::lRGBA, 32), GL_RGB8, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV},
// lARGB_8888
{dglCreateSurfaceDescriptor(8, 16, 8, 8, 8, 0, 8, 24, 0, 0, CColorDescriptor::lRGBA, 32), GL_RGBA8, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV},
// lARGB_8888_PRE
{dglCreateSurfaceDescriptor(8, 16, 8, 8, 8, 0, 8, 24, 0, 0, CColorDescriptor::lRGBA_PRE, 32), GL_RGBA8, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV},
/* BGR{A,X} channel ordering */
// sBGRX_8888
{dglCreateSurfaceDescriptor(8, 8, 8, 16, 8, 24, 0, 0, 0, 0, CColorDescriptor::sRGBA, 32), GL_SRGB8, GL_BGRA, GL_UNSIGNED_BYTE},
// sBGRA_8888
{dglCreateSurfaceDescriptor(8, 8, 8, 16, 8, 24, 8, 0, 0, 0, CColorDescriptor::sRGBA, 32), GL_SRGB8_ALPHA8, GL_BGRA, GL_UNSIGNED_BYTE},
// sBGRA_8888_PRE
{dglCreateSurfaceDescriptor(8, 8, 8, 16, 8, 24, 8, 0, 0, 0, CColorDescriptor::sRGBA_PRE, 32), GL_SRGB8_ALPHA8, GL_BGRA, GL_UNSIGNED_BYTE},
// sBGR_565
{dglCreateSurfaceDescriptor(5, 0, 6, 5, 5, 11, 0, 0, 0, 0, CColorDescriptor::sRGBA, 16), GL_SRGB8, GL_BGR, GL_UNSIGNED_SHORT_5_6_5},
// sBGRA_5551
{dglCreateSurfaceDescriptor(5, 1, 5, 6, 5, 11, 1, 0, 0, 0, CColorDescriptor::sRGBA, 16), GL_SRGB8_ALPHA8, GL_BGRA, GL_UNSIGNED_SHORT_5_5_5_1},
// sBGRA_4444
{dglCreateSurfaceDescriptor(4, 4, 4, 8, 4, 12, 4, 0, 0, 0, CColorDescriptor::sRGBA, 16), GL_SRGB8_ALPHA8, GL_BGRA, GL_UNSIGNED_SHORT_4_4_4_4},
// lBGRX_8888
{dglCreateSurfaceDescriptor(8, 8, 8, 16, 8, 24, 0, 0, 0, 0, CColorDescriptor::lRGBA, 32), GL_RGB8, GL_BGRA, GL_UNSIGNED_BYTE},
// lBGRA_8888
{dglCreateSurfaceDescriptor(8, 8, 8, 16, 8, 24, 8, 0, 0, 0, CColorDescriptor::lRGBA, 32), GL_RGBA8, GL_BGRA, GL_UNSIGNED_BYTE},
// lBGRA_8888_PRE
{dglCreateSurfaceDescriptor(8, 8, 8, 16, 8, 24, 8, 0, 0, 0, CColorDescriptor::lRGBA_PRE, 32), GL_RGBA8, GL_BGRA, GL_UNSIGNED_BYTE},
/* {A,X}BGR channel ordering */
// sXBGR_8888
{dglCreateSurfaceDescriptor(8, 0, 8, 8, 8, 16, 0, 0, 0, 0, CColorDescriptor::sRGBA, 32), GL_SRGB8, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV},
// sABGR_8888
{dglCreateSurfaceDescriptor(8, 0, 8, 8, 8, 16, 8, 24, 0, 0, CColorDescriptor::sRGBA, 32), GL_SRGB8_ALPHA8, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV},
// sABGR_8888_PRE
{dglCreateSurfaceDescriptor(8, 0, 8, 8, 8, 16, 8, 24, 0, 0, CColorDescriptor::sRGBA_PRE, 32), GL_SRGB8_ALPHA8, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV},
// sABGR_1555
{dglCreateSurfaceDescriptor(5, 0, 5, 5, 5, 10, 1, 15, 0, 0, CColorDescriptor::sRGBA, 16), GL_SRGB8_ALPHA8, GL_RGBA, GL_UNSIGNED_SHORT_1_5_5_5_REV},
// sABGR_4444
{dglCreateSurfaceDescriptor(4, 0, 4, 4, 4, 8, 4, 12, 0, 0, CColorDescriptor::sRGBA, 16), GL_SRGB8_ALPHA8, GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4_REV},
// lXBGR_8888
{dglCreateSurfaceDescriptor(8, 0, 8, 8, 8, 16, 0, 0, 0, 0, CColorDescriptor::lRGBA, 32), GL_RGB8, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV},
// lABGR_8888
{dglCreateSurfaceDescriptor(8, 0, 8, 8, 8, 16, 8, 24, 0, 0, CColorDescriptor::lRGBA, 32), GL_RGBA8, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV},
// lABGR_8888_PRE:
{dglCreateSurfaceDescriptor(8, 0, 8, 8, 8, 16, 8, 24, 0, 0, CColorDescriptor::lRGBA_PRE, 32), GL_RGBA8, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV}};
for (size_t i = 0; i < sizeof(map)/sizeof(map[0]); i++)
{
if (dglIsDescEqualToMapping(desc, map[i]))
{
internal_format = map[i].internal_format;
data_format = map[i].data_format;
data_type = map[i].data_type;
DGLES2_ASSERT(internal_format != GL_NONE && data_format != GL_NONE && data_type != GL_NONE);
return;
}
}
DGLES2_ASSERT(GL_FALSE);
return;
}
void deglGetImageInfo(GLeglImageOES image, GLenum* internal_format, GLsizei* width, GLsizei* height, GLsizei* stride, GLenum* data_format, GLenum* data_type)
{
DGLES2_ASSERT(image != NULL);
DGLES2_ASSERT(internal_format != NULL);
DGLES2_ASSERT(width != NULL);
DGLES2_ASSERT(height != NULL);
DGLES2_ASSERT(stride != NULL);
DGLES2_ASSERT(data_format != NULL);
DGLES2_ASSERT(data_type != NULL);
SurfaceDescriptor desc;
EGLtoGLES2Interface::GetEGLInterface()->GetDescForImage(image, desc);
*width = desc.m_width;
*height = desc.m_height;
*stride = desc.m_stride;
dglSurfaceDescriptorToGLEnums(desc, *internal_format, *data_format, *data_type);
}
void* deglGetImageData(GLeglImageOES image)
{
DGLES2_ASSERT(image != NULL);
return EGLtoGLES2Interface::GetEGLInterface()->GetDataForImage(image);
}
namespace
{
EGLtoGLES2Interface g_EGLtoGLES2Interface;
}
IEGLtoGLES2Interface* getGLES2Interface(void)
{
return &g_EGLtoGLES2Interface;
}
#include <new>
EGLtoGLES2Interface::EGLtoGLES2Interface() :
m_egl(NULL)
{
}
void EGLtoGLES2Interface::SetEGLInterface( IGLEStoEGLInterface* egl )
{
DGLES2_ASSERT(!m_egl);
m_egl = egl;
}
void* EGLtoGLES2Interface::CreateContext(void* nativeContext)
{
DGLContext* newContext = NULL;
newContext = DGLContext_create(nativeContext);
if(newContext == NULL)
{
return NULL;
}
m_contexts.insert(newContext);
return newContext;
}
bool EGLtoGLES2Interface::ReleaseContext(void* context)
{
DGLES2_ASSERT(context != NULL);
DGLContext* ctx = static_cast<DGLContext*>(context);
if(m_contexts.find(ctx) == m_contexts.end())
{
return false;
}
DGLContext_destroy(ctx);
m_contexts.erase(ctx);
return true;
}
void* EGLtoGLES2Interface::GetNativeContext(void* context)
{
DGLES2_ASSERT(context != NULL);
DGLContext* ctx = static_cast<DGLContext*>(context);
if(m_contexts.find(ctx) == m_contexts.end())
{
return false;
}
return ctx->native_context;
}
extern "C"
{
GL_APICALL void GL_APIENTRY glEGLImageTargetTexture2DOES (GLenum target, GLeglImageOES image);
GL_APICALL void GL_APIENTRY glEGLImageTargetRenderbufferStorageOES (GLenum target, GLeglImageOES image);
}
fpGLProc EGLtoGLES2Interface::GetGLProcAddress(const char *procname)
{
if(strcmp(procname, "glEGLImageTargetTexture2DOES") == 0)
{
return (fpGLProc)glEGLImageTargetTexture2DOES;
}
else if(strcmp(procname, "glEGLImageTargetRenderbufferStorageOES") == 0)
{
return (fpGLProc)glEGLImageTargetRenderbufferStorageOES;
}
else
{
return NULL;
}
}
int EGLtoGLES2Interface::BindTexImage( void* surface, int level, bool generate_mipmap, const SurfaceDescriptor* desc, void* buffer )
{
DGLES2_ENTER_RET(NULL);
GLuint ret = 0;
// Store the current error and clear the error flag.
DGLContext_getHostError(ctx);
if(level < 0)
{
level = 0;
}
else if(level > ctx->max_texture_level)
{
level = ctx->max_texture_level;
}
// Clear all mipmap levels.
{
int i;
for(i = 0; i < ctx->max_texture_level; i++)
{
ctx->hgl.TexImage2D(GL_TEXTURE_2D, level, GL_RGBA, 0, 0, 0,
GL_RGBA, GL_UNSIGNED_BYTE, NULL);
}
}
{
GLenum internal_format, data_format, data_type;
dglSurfaceDescriptorToGLEnums(*desc, internal_format, data_format, data_type);
ctx->hgl.TexImage2D(GL_TEXTURE_2D, level, internal_format, desc->m_width, desc->m_height, 0,
data_format, data_type, buffer);
}
if(generate_mipmap && level == 0)
{
ctx->hgl.GenerateMipmapEXT(GL_TEXTURE_2D);
}
// Clear any possible error flag.
if(ctx->hgl.GetError() == GL_NO_ERROR)
{
DGLTexture* texture;
GLeglImageOES image;
texture = DGLContext_findTexture(ctx, ctx->texture_binding_2d);
DGLES2_ASSERT(texture != NULL);
DGLTexture_setLevel(texture, GL_TEXTURE_2D, level, GL_RGBA, desc->m_width, desc->m_height);
if(generate_mipmap && level == 0)
{
DGLTexture_generateMipmap(texture);
}
image = DGLTexture_getEGLImage(texture, GL_TEXTURE_2D);
if(image != NULL)
{
// Texture is respecified. It is no longer an EGLImage sibling.
deglUnregisterImageTarget(image, GL_TEXTURE_2D, texture->obj.name);
DGLTexture_setEGLImage(texture, GL_TEXTURE_2D, NULL);
}
{
DGLTextureLevel* level_obj = DGLTexture_getLevel(texture, GL_TEXTURE_2D, level);
if(level_obj->bound_surface != NULL)
{
// Texture is respecified. Release the bound EGLSurface.
deglReleaseTexImage(level_obj->bound_surface, texture->obj.name, level);
}
level_obj->bound_surface = surface;
}
ret = texture->obj.name;
}
DGLES2_LEAVE_NO_ERROR_CHECK_RET(ret);
}
bool EGLtoGLES2Interface::ReleaseTexImage( int name, int level )
{
DGLES2_ENTER_RET(false);
DGLContext_getHostError(ctx);
GLuint binding;
ctx->hgl.GetIntegerv(GL_TEXTURE_BINDING_2D, (GLint*)&binding);
ctx->hgl.BindTexture(GL_TEXTURE_2D, (GLuint)name);
ctx->hgl.TexImage2D(GL_TEXTURE_2D, level, GL_RGBA, 0, 0, 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
ctx->hgl.BindTexture(GL_TEXTURE_2D, binding);
bool ret = false;
if(ctx->hgl.GetError() == GL_NO_ERROR)
{
DGLTexture* texture;
DGLTextureLevel* level_obj;
texture = DGLContext_findTexture(ctx, name);
level_obj = DGLTexture_getLevel(texture, GL_TEXTURE_2D, level);
level_obj->bound_surface = NULL;
ret = true;
}
DGLES2_LEAVE_NO_ERROR_CHECK_RET(ret);
}
static GLenum dglImageTargetToGLenum(EImageTarget target)
{
switch(target)
{
case IMAGE_TARGET_TEXTURE_2D:
return GL_TEXTURE_2D;
case IMAGE_TARGET_TEXTURE_CUBE_MAP_POSITIVE_X:
return GL_TEXTURE_CUBE_MAP_POSITIVE_X;
case IMAGE_TARGET_TEXTURE_CUBE_MAP_NEGATIVE_X:
return GL_TEXTURE_CUBE_MAP_NEGATIVE_X;
case IMAGE_TARGET_TEXTURE_CUBE_MAP_POSITIVE_Y:
return GL_TEXTURE_CUBE_MAP_POSITIVE_Y;
case IMAGE_TARGET_TEXTURE_CUBE_MAP_NEGATIVE_Y:
return GL_TEXTURE_CUBE_MAP_NEGATIVE_Y;
case IMAGE_TARGET_TEXTURE_CUBE_MAP_POSITIVE_Z:
return GL_TEXTURE_CUBE_MAP_POSITIVE_Z;
case IMAGE_TARGET_TEXTURE_CUBE_MAP_NEGATIVE_Z:
return GL_TEXTURE_CUBE_MAP_NEGATIVE_Z;
default:
DGLES2_ASSERT(false);
}
// Not reached.
return -1;
}
static bool dglPrepareState(DGLContext& ctx, GLuint name, EImageTarget target, GLint level, GLenum& query_target, GLenum& bind_target, GLint& binding)
{
if(name == 0)
{
return false;
}
// Store the current error and clear the error flag.
DGLContext_getHostError(&ctx);
query_target = dglImageTargetToGLenum(target);
switch(query_target)
{
case GL_TEXTURE_2D:
bind_target = GL_TEXTURE_2D;
ctx.hgl.GetIntegerv(GL_TEXTURE_BINDING_2D, &binding);
break;
case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
bind_target = GL_TEXTURE_CUBE_MAP;
ctx.hgl.GetIntegerv(GL_TEXTURE_BINDING_CUBE_MAP, &binding);
break;
}
const DGLTexture* texture = DGLContext_findTexture(&ctx, name);
if(texture == NULL)
{
return false;
}
if(!DGLTexture_isComplete(texture))
{
if(level != 0)
{
return false;
}
else
{
if(!DGLTexture_hasLevelZero(texture))
{
return false;
}
if(DGLTexture_hasLevelsOtherThanZero(texture))
{
return false;
}
}
}
ctx.hgl.BindTexture(bind_target, name);
// Clear any possible error flag.
if(ctx.hgl.GetError() == GL_INVALID_OPERATION)
{
// Texture was not created with the requested target.
return false;
}
return true;
}
static void dglResetState(DGLContext& ctx, GLenum target, GLint binding)
{
// Reset state.
ctx.hgl.BindTexture(target, binding);
DGLES2_ASSERT(ctx.hgl.GetError() == GL_NO_ERROR);
}
EStatus EGLtoGLES2Interface::GetTextureInfo(void* context, EImageTarget target, void* texture, GLint texture_level, SurfaceDescriptor& surfDesc)
{
DGLES2_ASSERT(context != NULL);
DGLContext* ctx = (DGLContext*)context;
GLuint name = (GLuint)texture;
dglGetLock();
GLenum query_target;
GLenum bind_target;
GLint binding;
if(!dglPrepareState(*ctx, name, target, texture_level, query_target, bind_target, binding))
{
dglReleaseLock();
return DGLES2_BAD_PARAMETER;
}
CColorDescriptor& colDesc = surfDesc.m_colorDescriptor;
GLenum format;
ctx->hgl.GetTexLevelParameteriv(query_target, texture_level, GL_TEXTURE_WIDTH, &surfDesc.m_width);
ctx->hgl.GetTexLevelParameteriv(query_target, texture_level, GL_TEXTURE_HEIGHT, &surfDesc.m_height);
ctx->hgl.GetTexLevelParameteriv(query_target, texture_level, GL_TEXTURE_RED_SIZE, &colDesc.m_redSize);
ctx->hgl.GetTexLevelParameteriv(query_target, texture_level, GL_TEXTURE_GREEN_SIZE, &colDesc.m_greenSize);
ctx->hgl.GetTexLevelParameteriv(query_target, texture_level, GL_TEXTURE_BLUE_SIZE, &colDesc.m_blueSize);
ctx->hgl.GetTexLevelParameteriv(query_target, texture_level, GL_TEXTURE_ALPHA_SIZE, &colDesc.m_alphaSize);
ctx->hgl.GetTexLevelParameteriv(query_target, texture_level, GL_TEXTURE_LUMINANCE_SIZE, &colDesc.m_luminanceSize);
ctx->hgl.GetTexLevelParameteriv(query_target, texture_level, GL_TEXTURE_INTERNAL_FORMAT, (GLint*)&format);
if(format == GL_RGB || format == GL_RGB8)
{
// Convert RGB888 to RGBA8888 to make VG interop easier.
format = GL_RGBA;
}
if(ctx->hgl.GetError() == GL_INVALID_VALUE)
{
// Invalid level.
dglReleaseLock();
return DGLES2_BAD_MATCH;
}
surfDesc.m_redShift = 0;
surfDesc.m_greenShift = 0;
surfDesc.m_blueShift = 0;
surfDesc.m_luminanceShift = 0;
surfDesc.m_alphaShift = 0;
int bpp = 0;
switch(format)
{
#ifndef DGLES2_NO_SRGB
case GL_SRGB8:
surfDesc.m_redShift = 16;
surfDesc.m_greenShift = 8;
surfDesc.m_blueShift = 0;
colDesc.m_format = CColorDescriptor::sRGBA;
colDesc.m_bpp = 24;
break;
case GL_SRGB8_ALPHA8:
surfDesc.m_redShift = 24;
surfDesc.m_greenShift = 16;
surfDesc.m_blueShift = 8;
surfDesc.m_alphaShift = 0;
colDesc.m_format = CColorDescriptor::sRGBA;
colDesc.m_bpp = 32;
break;
case GL_SLUMINANCE8:
surfDesc.m_luminanceShift = 0;
colDesc.m_format = CColorDescriptor::sLA;
colDesc.m_bpp = 8;
break;
#endif
case GL_RGB:
case GL_RGB8:
surfDesc.m_redShift = 16;
surfDesc.m_greenShift = 8;
surfDesc.m_blueShift = 0;
colDesc.m_format = CColorDescriptor::lRGBA;
colDesc.m_bpp = 24;
break;
case GL_RGBA:
case GL_RGBA8:
surfDesc.m_redShift = 24;
surfDesc.m_greenShift = 16;
surfDesc.m_blueShift = 8;
surfDesc.m_alphaShift = 0;
colDesc.m_format = CColorDescriptor::lRGBA;
colDesc.m_bpp = 32;
break;
case GL_LUMINANCE_ALPHA:
surfDesc.m_luminanceShift = 8;
surfDesc.m_alphaShift = 0;
colDesc.m_format = CColorDescriptor::lLA;
colDesc.m_bpp = 16;
break;
case GL_ALPHA:
case GL_ALPHA8:
surfDesc.m_alphaShift = 0;
colDesc.m_format = CColorDescriptor::lRGBA;
colDesc.m_bpp = 8;
break;
case GL_LUMINANCE:
case GL_LUMINANCE8:
surfDesc.m_luminanceShift = 0;
colDesc.m_format = CColorDescriptor::lLA;
colDesc.m_bpp = 8;
break;
default:
DGLES2_ASSERT(GL_FALSE);
}
surfDesc.m_stride = colDesc.m_bpp / 8 * surfDesc.m_width;
dglResetState(*ctx, bind_target, binding);
dglReleaseLock();
return DGLES2_SUCCESS;
}
EStatus EGLtoGLES2Interface::GetTextureData( void* context, EImageTarget target, void* texture, EGLint texture_level, void* data )
{
DGLES2_ASSERT(context != NULL);
DGLContext* ctx = (DGLContext*)context;
GLuint name = (GLuint)texture;
dglGetLock();
GLenum query_target;
GLenum bind_target;
GLint binding;
if(!dglPrepareState(*ctx, name, target, texture_level, query_target, bind_target, binding))
{
dglReleaseLock();
return DGLES2_BAD_PARAMETER;
}
GLenum format;
GLint pack_alignment;
ctx->hgl.GetTexLevelParameteriv(query_target, texture_level, GL_TEXTURE_INTERNAL_FORMAT, (GLint*)&format);
if(format == GL_RGB || format == GL_RGB8)
{
// Convert RGB888 to RGBA8888 to make VG interop easier.
format = GL_RGBA;
}
ctx->hgl.GetIntegerv(GL_PACK_ALIGNMENT, &pack_alignment);
ctx->hgl.PixelStorei(GL_PACK_ALIGNMENT, 1);
ctx->hgl.GetTexImage(query_target, texture_level, format, GL_UNSIGNED_BYTE, data);
ctx->hgl.PixelStorei(GL_PACK_ALIGNMENT, pack_alignment);
if(ctx->hgl.GetError() == GL_INVALID_VALUE)
{
// Invalid level.
dglReleaseLock();
return DGLES2_BAD_MATCH;
}
dglResetState(*ctx, bind_target, binding);
dglReleaseLock();
return DGLES2_SUCCESS;
}
bool EGLtoGLES2Interface::CopyBuffers( void* buf, const SurfaceDescriptor* desc )
{
DGLES2_ENTER_RET(false);
// Store the current error and clear the error flag.
DGLContext_getHostError(ctx);
{
GLint framebuffer_binding;
GLint pack_alignment;
GLenum internal_format, data_format, data_type;
ctx->hgl.GetIntegerv(GL_FRAMEBUFFER_BINDING, &framebuffer_binding);
ctx->hgl.GetIntegerv(GL_PACK_ALIGNMENT, &pack_alignment);
dglSurfaceDescriptorToGLEnums(*desc, internal_format, data_format, data_type);
ctx->hgl.BindFramebufferEXT(GL_FRAMEBUFFER, 0);
ctx->hgl.PixelStorei(GL_PACK_ALIGNMENT, 1);
ctx->hgl.ReadPixels(0, 0, desc->m_width, desc->m_height, data_format, data_type, buf);
// Restore state.
ctx->hgl.PixelStorei(GL_PACK_ALIGNMENT, pack_alignment);
ctx->hgl.BindFramebufferEXT(GL_FRAMEBUFFER, framebuffer_binding);
}
DGLES2_LEAVE_NO_ERROR_CHECK_RET(ctx->hgl.GetError() == GL_NO_ERROR);
}
bool EGLtoGLES2Interface::UpdateBuffers( void* buf, const SurfaceDescriptor* desc )
{
DGLES2_ENTER_RET(false);
// Store the current error and clear the error flag.
DGLContext_getHostError(ctx);
{
GLint framebuffer_binding;
GLint unpack_alignment;
GLenum internal_format, data_format, data_type;
ctx->hgl.GetIntegerv(GL_FRAMEBUFFER_BINDING, &framebuffer_binding);
ctx->hgl.GetIntegerv(GL_UNPACK_ALIGNMENT, &unpack_alignment);
dglSurfaceDescriptorToGLEnums(*desc, internal_format, data_format, data_type);
ctx->hgl.BindFramebufferEXT(GL_FRAMEBUFFER, 0);
ctx->hgl.PixelStorei(GL_UNPACK_ALIGNMENT, 1);
ctx->hgl.DrawPixels( desc->m_width, desc->m_height, data_format, data_type, buf );
// Restore state.
ctx->hgl.PixelStorei(GL_UNPACK_ALIGNMENT, unpack_alignment);
ctx->hgl.BindFramebufferEXT(GL_FRAMEBUFFER, framebuffer_binding);
}
DGLES2_LEAVE_NO_ERROR_CHECK_RET(ctx->hgl.GetError() == GL_NO_ERROR);
}
bool EGLtoGLES2Interface::UpdateImageSibling( EImageTarget imageTarget, void* name )
{
DGLES2_ENTER_RET(false);
DGLContext_getHostError(ctx);
{
bool success = true;
bool cubeMap = false;
switch(imageTarget)
{
case IMAGE_TARGET_TEXTURE_CUBE_MAP_POSITIVE_X:
case IMAGE_TARGET_TEXTURE_CUBE_MAP_NEGATIVE_X:
case IMAGE_TARGET_TEXTURE_CUBE_MAP_POSITIVE_Y:
case IMAGE_TARGET_TEXTURE_CUBE_MAP_NEGATIVE_Y:
case IMAGE_TARGET_TEXTURE_CUBE_MAP_POSITIVE_Z:
case IMAGE_TARGET_TEXTURE_CUBE_MAP_NEGATIVE_Z:
cubeMap = true;
// fall through
case IMAGE_TARGET_TEXTURE_2D:
{
DGLTexture* texture;
GLenum textureTarget;
GLeglImageOES image;
GLint binding;
texture = DGLContext_findTexture(ctx, (GLuint)name);
if(texture == NULL)
{
success = false;
break;
}
textureTarget = dglImageTargetToGLenum(imageTarget);
image = DGLTexture_getEGLImage(texture, textureTarget);
if(image == NULL)
{
success = false;
break;
}
ctx->hgl.GetIntegerv(cubeMap ? GL_TEXTURE_BINDING_CUBE_MAP : GL_TEXTURE_BINDING_2D, &binding);
ctx->hgl.BindTexture(cubeMap ? GL_TEXTURE_CUBE_MAP : GL_TEXTURE_2D, texture->obj.name);
success = !!DGLContext_specifyTextureFromEGLImage(ctx, image, textureTarget);
// Reset state.
ctx->hgl.BindTexture(cubeMap ? GL_TEXTURE_CUBE_MAP : GL_TEXTURE_2D, binding);
if(!success)
{
success = false;
break;
}
break;
}
case IMAGE_TARGET_RENDERBUFFER:
{
DGLRenderbuffer* buffer;
GLint binding;
buffer = DGLContext_findRenderbuffer(ctx, (GLuint)name);
if(buffer == NULL)
{
success = false;
break;
}
if(buffer->egl_image == NULL)
{
success = false;
break;
}
ctx->hgl.GetIntegerv(GL_RENDERBUFFER_BINDING, &binding);
ctx->hgl.BindRenderbufferEXT(GL_RENDERBUFFER, buffer->obj.name);
success = !!DGLContext_specifyRenderbufferFromEGLImage(ctx, buffer->egl_image);
// Reset state.
ctx->hgl.BindRenderbufferEXT(GL_RENDERBUFFER, binding);
if(!success)
{
success = false;
break;
}
break;
}
default:
DGLES2_ASSERT(false);
success = false;
break;
}
if(ctx->hgl.GetError() != GL_NO_ERROR)
{
success = false;
}
DGLES2_LEAVE_NO_ERROR_CHECK_RET(success);
}
}
void EGLtoGLES2Interface::Flush()
{
DGLES2_ENTER();
ctx->hgl.Flush();
DGLES2_LEAVE_NO_ERROR_CHECK();
}
void EGLtoGLES2Interface::Finish()
{
DGLES2_ENTER();
ctx->hgl.Finish();
DGLES2_LEAVE_NO_ERROR_CHECK();
}
/*static*/ IGLEStoEGLInterface* EGLtoGLES2Interface::GetEGLInterface()
{
return g_EGLtoGLES2Interface.m_egl;
}