--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/hostsupport/hostopengles20/src/degl.cpp Thu Oct 07 13:58:22 2010 +0100
@@ -0,0 +1,923 @@
+/* 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;
+}