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/*
* Copyright 2010 Inalogic® Inc.
*
* This program is free software: you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License, as
* published by the Free Software Foundation; either version 2.1 or 3.0
* of the License.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranties of
* MERCHANTABILITY, SATISFACTORY QUALITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the applicable version of the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of both the GNU Lesser General Public
* License along with this program. If not, see <http://www.gnu.org/licenses/>
*
* Authored by: Jay Taoko <jaytaoko@inalogic.com>
*
*/
#include "GLResource.h"
#include "NuxGraphics.h"
#include "GpuDevice.h"
#include "GLDeviceObjects.h"
#include "GLResourceManager.h"
#include "GLTextureResourceManager.h"
#include "GLVertexResourceManager.h"
#include "GLDeviceFrameBufferObject.h"
#include "GLTemplatePrimitiveBuffer.h"
#include "GraphicsEngine.h"
namespace nux
{
#if (NUX_ENABLE_CG_SHADERS)
extern void cgErrorCallback (void);
#endif
typedef struct
{
int major;
int minor;
} OpenGLVersion;
static OpenGLVersion OpenGLVersionTable [] =
{
{1, 0},
{1, 1},
{1, 2},
{1, 3},
{1, 4},
{2, 0},
{2, 1},
{3, 0},
{3, 1},
{3, 2},
{3, 3},
{4, 0},
{4, 1},
{0, 0}
};
// Pixel buffer object seems to corrupt textures. This can be seen when the window is moved
// to the second screen in a multi-display configuration...
// Happens on geforce 6600. Does not happens on geforce 6800.
// ATI Radeon 4670 has problems loading textures from pixel buffer object. PBO should be deactivated if the
// graphics card is made by AMD/ATI
#define NUX_USE_PBO 1
extern PixelFormatInfo GPixelFormats[];
static void InitTextureFormats()
{
#ifndef NUX_OPENGLES_20
GPixelFormats[ BITFMT_UNKNOWN ].PlatformFormat = GL_NONE; // Not supported for rendering.
// Data in PC system memory: R(LSB) G B A(MSB) ---> GL Format:GL_RGBA - GL Type:GL_UNSIGNED_INT_8_8_8_8_REV
GPixelFormats[ BITFMT_R8G8B8A8 ].PlatformFormat = GL_RGBA8;
GPixelFormats[ BITFMT_R8G8B8A8 ].Format = GL_RGBA;
GPixelFormats[ BITFMT_R8G8B8A8 ].type = GL_UNSIGNED_INT_8_8_8_8_REV;
// Data in PC system memory: A(LSB) B G R(MSB) ---> GL Format:GL_RGBA - GL Type:GL_UNSIGNED_INT_8_8_8_8
GPixelFormats[ BITFMT_A8B8G8R8 ].PlatformFormat = GL_RGBA8;
GPixelFormats[ BITFMT_A8B8G8R8 ].Format = GL_RGBA;
GPixelFormats[ BITFMT_A8B8G8R8 ].type = GL_UNSIGNED_INT_8_8_8_8;
// Data in PC system memory: B(LSB) G R A(MSB) ---> GL Format:GL_BGRA - GL Type:GL_UNSIGNED_INT_8_8_8_8_REV
GPixelFormats[ BITFMT_B8G8R8A8 ].PlatformFormat = GL_RGBA8;
GPixelFormats[ BITFMT_B8G8R8A8 ].Format = GL_BGRA;
GPixelFormats[ BITFMT_B8G8R8A8 ].type = GL_UNSIGNED_INT_8_8_8_8_REV;
// Data in PC system memory: A(LSB) R G B(MSB) ---> GL Format:GL_BGRA - GL Type:GL_UNSIGNED_INT_8_8_8_8
GPixelFormats[ BITFMT_A8R8G8B8 ].PlatformFormat = GL_RGBA8;
GPixelFormats[ BITFMT_A8R8G8B8 ].Format = GL_BGRA;
GPixelFormats[ BITFMT_A8R8G8B8 ].type = GL_UNSIGNED_INT_8_8_8_8;
// Data in PC system memory: R(LSB) G B(MSB) ---> GL Format:GL_RGB - GL Type:GL_UNSIGNED
GPixelFormats[ BITFMT_R8G8B8 ].PlatformFormat = GL_RGB8;
GPixelFormats[ BITFMT_R8G8B8 ].Format = GL_RGB;
GPixelFormats[ BITFMT_R8G8B8 ].type = GL_UNSIGNED_BYTE;
GPixelFormats[ BITFMT_B8G8R8 ].PlatformFormat = GL_RGB8;
GPixelFormats[ BITFMT_B8G8R8 ].Format = GL_BGR;
GPixelFormats[ BITFMT_B8G8R8 ].type = GL_UNSIGNED_BYTE;
GPixelFormats[ BITFMT_R5G6B5 ].PlatformFormat = GL_RGB5;
GPixelFormats[ BITFMT_R5G6B5 ].Format = GL_RGB;
GPixelFormats[ BITFMT_R5G6B5 ].type = GL_UNSIGNED_SHORT_5_6_5;
GPixelFormats[ BITFMT_RGBA16F ].PlatformFormat = GL_RGBA16F_ARB;
GPixelFormats[ BITFMT_RGBA16F ].Format = GL_RGBA;
GPixelFormats[ BITFMT_RGBA16F ].type = GL_HALF_FLOAT_ARB;
GPixelFormats[ BITFMT_RGB32F ].PlatformFormat = GL_RGB;
GPixelFormats[ BITFMT_RGB32F ].Format = GL_RGB;
GPixelFormats[ BITFMT_RGB32F ].type = GL_FLOAT;
GPixelFormats[ BITFMT_RGBA32F ].PlatformFormat = GL_RGBA32F_ARB;
GPixelFormats[ BITFMT_RGBA32F ].Format = GL_RGBA;
GPixelFormats[ BITFMT_RGBA32F ].type = GL_FLOAT;
// Note: Using GL_DEPTH_COMPONENT24 or GL_DEPTH_COMPONENT for PlatformFormat generate error GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT.
GPixelFormats[ BITFMT_D24S8 ].PlatformFormat = GL_DEPTH24_STENCIL8_EXT;
GPixelFormats[ BITFMT_D24S8 ].Format = GL_DEPTH_STENCIL_EXT; // or GL_DEPTH_STENCIL_NV;
GPixelFormats[ BITFMT_D24S8 ].type = GL_UNSIGNED_INT_24_8_EXT; // or GL_UNSIGNED_INT_24_8_NV;
GPixelFormats[ BITFMT_DXT1 ].PlatformFormat = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT;
GPixelFormats[ BITFMT_DXT2 ].PlatformFormat = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
GPixelFormats[ BITFMT_DXT3 ].PlatformFormat = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
GPixelFormats[ BITFMT_DXT4 ].PlatformFormat = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
GPixelFormats[ BITFMT_DXT5 ].PlatformFormat = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
GPixelFormats[ BITFMT_R10G10B10A2 ].PlatformFormat = GL_RGB10_A2;
GPixelFormats[ BITFMT_R10G10B10A2 ].Format = GL_RGBA;
GPixelFormats[ BITFMT_R10G10B10A2 ].type = GL_UNSIGNED_INT_10_10_10_2;
GPixelFormats[ BITFMT_A2B10G10R10 ].PlatformFormat = GL_RGB10_A2;
GPixelFormats[ BITFMT_A2B10G10R10 ].Format = GL_RGBA;
GPixelFormats[ BITFMT_A2B10G10R10 ].type = GL_UNSIGNED_INT_2_10_10_10_REV;
GPixelFormats[ BITFMT_B10G10R10A2 ].PlatformFormat = GL_RGB10_A2;
GPixelFormats[ BITFMT_B10G10R10A2 ].Format = GL_BGRA;
GPixelFormats[ BITFMT_B10G10R10A2 ].type = GL_UNSIGNED_INT_10_10_10_2;
GPixelFormats[ BITFMT_A2R10G10B10 ].PlatformFormat = GL_RGB10_A2;
GPixelFormats[ BITFMT_A2R10G10B10 ].Format = GL_BGRA;
GPixelFormats[ BITFMT_A2R10G10B10 ].type = GL_UNSIGNED_INT_2_10_10_10_REV;
GPixelFormats[ BITFMT_A8 ].PlatformFormat = GL_RGBA8;
GPixelFormats[ BITFMT_A8 ].Format = GL_LUMINANCE;
GPixelFormats[ BITFMT_A8 ].type = GL_UNSIGNED_BYTE;
#else
GPixelFormats[ BITFMT_UNKNOWN ].PlatformFormat = GL_NONE; // Not supported for rendering.
// Data in PC system memory: R(LSB) G B A(MSB) ---> GL Format:GL_RGBA - GL Type:GL_UNSIGNED_INT_8_8_8_8_REV
GPixelFormats[ BITFMT_R8G8B8A8 ].PlatformFormat = GL_RGBA;
GPixelFormats[ BITFMT_R8G8B8A8 ].Format = GL_RGBA;
GPixelFormats[ BITFMT_R8G8B8A8 ].type = GL_UNSIGNED_BYTE;
// Data in PC system memory: A(LSB) B G R(MSB) ---> GL Format:GL_RGBA - GL Type:GL_UNSIGNED_INT_8_8_8_8
GPixelFormats[ BITFMT_A8B8G8R8 ].PlatformFormat = GL_RGBA;
GPixelFormats[ BITFMT_A8B8G8R8 ].Format = GL_RGBA;
GPixelFormats[ BITFMT_A8B8G8R8 ].type = GL_UNSIGNED_BYTE;
// Data in PC system memory: B(LSB) G R A(MSB) ---> GL Format:GL_BGRA - GL Type:GL_UNSIGNED_INT_8_8_8_8_REV
GPixelFormats[ BITFMT_B8G8R8A8 ].PlatformFormat = GL_RGBA;
GPixelFormats[ BITFMT_B8G8R8A8 ].Format = GL_RGBA;
GPixelFormats[ BITFMT_B8G8R8A8 ].type = GL_UNSIGNED_BYTE;
// Data in PC system memory: A(LSB) R G B(MSB) ---> GL Format:GL_BGRA - GL Type:GL_UNSIGNED_INT_8_8_8_8
GPixelFormats[ BITFMT_A8R8G8B8 ].PlatformFormat = GL_RGBA;
GPixelFormats[ BITFMT_A8R8G8B8 ].Format = GL_RGBA;
GPixelFormats[ BITFMT_A8R8G8B8 ].type = GL_UNSIGNED_BYTE;
// Data in PC system memory: R(LSB) G B(MSB) ---> GL Format:GL_RGB - GL Type:GL_UNSIGNED
GPixelFormats[ BITFMT_R8G8B8 ].PlatformFormat = GL_RGB;
GPixelFormats[ BITFMT_R8G8B8 ].Format = GL_RGB;
GPixelFormats[ BITFMT_R8G8B8 ].type = GL_UNSIGNED_BYTE;
GPixelFormats[ BITFMT_B8G8R8 ].PlatformFormat = GL_RGB;
GPixelFormats[ BITFMT_B8G8R8 ].Format = GL_RGB;
GPixelFormats[ BITFMT_B8G8R8 ].type = GL_UNSIGNED_BYTE;
GPixelFormats[ BITFMT_R5G6B5 ].PlatformFormat = GL_RGB;
GPixelFormats[ BITFMT_R5G6B5 ].Format = GL_RGB;
GPixelFormats[ BITFMT_R5G6B5 ].type = GL_UNSIGNED_SHORT_5_6_5;
GPixelFormats[ BITFMT_RGBA16F ].PlatformFormat = GL_NONE;
GPixelFormats[ BITFMT_RGBA16F ].Format = GL_NONE;
GPixelFormats[ BITFMT_RGBA16F ].type = GL_NONE;
GPixelFormats[ BITFMT_RGB32F ].PlatformFormat = GL_NONE;
GPixelFormats[ BITFMT_RGB32F ].Format = GL_NONE;
GPixelFormats[ BITFMT_RGB32F ].type = GL_NONE;
GPixelFormats[ BITFMT_RGBA32F ].PlatformFormat = GL_NONE;
GPixelFormats[ BITFMT_RGBA32F ].Format = GL_NONE;
GPixelFormats[ BITFMT_RGBA32F ].type = GL_NONE;
// Note: Using GL_DEPTH_COMPONENT24 or GL_DEPTH_COMPONENT for PlatformFormat generate error GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT.
GPixelFormats[ BITFMT_D24S8 ].PlatformFormat = GL_NONE;
GPixelFormats[ BITFMT_D24S8 ].Format = GL_NONE; // or GL_DEPTH_STENCIL_NV;
GPixelFormats[ BITFMT_D24S8 ].type = GL_NONE; // or GL_UNSIGNED_INT_24_8_NV;
GPixelFormats[ BITFMT_DXT1 ].PlatformFormat = GL_NONE;
GPixelFormats[ BITFMT_DXT2 ].PlatformFormat = GL_NONE;
GPixelFormats[ BITFMT_DXT3 ].PlatformFormat = GL_NONE;
GPixelFormats[ BITFMT_DXT4 ].PlatformFormat = GL_NONE;
GPixelFormats[ BITFMT_DXT5 ].PlatformFormat = GL_NONE;
GPixelFormats[ BITFMT_R10G10B10A2 ].PlatformFormat = GL_NONE;
GPixelFormats[ BITFMT_R10G10B10A2 ].Format = GL_NONE;
GPixelFormats[ BITFMT_R10G10B10A2 ].type = GL_NONE;
GPixelFormats[ BITFMT_A2B10G10R10 ].PlatformFormat = GL_NONE;
GPixelFormats[ BITFMT_A2B10G10R10 ].Format = GL_NONE;
GPixelFormats[ BITFMT_A2B10G10R10 ].type = GL_NONE;
GPixelFormats[ BITFMT_B10G10R10A2 ].PlatformFormat = GL_NONE;
GPixelFormats[ BITFMT_B10G10R10A2 ].Format = GL_NONE;
GPixelFormats[ BITFMT_B10G10R10A2 ].type = GL_NONE;
GPixelFormats[ BITFMT_A2R10G10B10 ].PlatformFormat = GL_NONE;
GPixelFormats[ BITFMT_A2R10G10B10 ].Format = GL_NONE;
GPixelFormats[ BITFMT_A2R10G10B10 ].type = GL_NONE;
GPixelFormats[ BITFMT_A8 ].PlatformFormat = GL_ALPHA;
GPixelFormats[ BITFMT_A8 ].Format = GL_ALPHA;
GPixelFormats[ BITFMT_A8 ].type = GL_UNSIGNED_BYTE;
#endif
}
STREAMSOURCE GpuDevice::_StreamSource[MAX_NUM_STREAM];
GpuInfo::GpuInfo ()
{
_support_opengl_version_11 = false;
_support_opengl_version_12 = false;
_support_opengl_version_13 = false;
_support_opengl_version_14 = false;
_support_opengl_version_15 = false;
_support_opengl_version_20 = false;
_support_opengl_version_21 = false;
_support_opengl_version_30 = false;
_support_opengl_version_31 = false;
_support_opengl_version_32 = false;
_support_opengl_version_33 = false;
_support_opengl_version_40 = false;
_support_opengl_version_41 = false;
}
void GpuInfo::Setup()
{
_support_opengl_version_11 = GLEW_VERSION_1_1 ? true : false;
_support_opengl_version_12 = GLEW_VERSION_1_2 ? true : false;
_support_opengl_version_13 = GLEW_VERSION_1_3 ? true : false;
_support_opengl_version_14 = GLEW_VERSION_1_4 ? true : false;
_support_opengl_version_15 = GLEW_VERSION_1_5 ? true : false;
_support_opengl_version_20 = GLEW_VERSION_2_0 ? true : false;
_support_opengl_version_21 = GLEW_VERSION_2_1 ? true : false;
_support_opengl_version_30 = GLEW_VERSION_3_0 ? true : false;
_support_opengl_version_31 = GLEW_VERSION_3_1 ? true : false;
_support_opengl_version_32 = GLEW_VERSION_3_2 ? true : false;
// _support_opengl_version_33 = GLEW_VERSION_3_3 ? true : false;
// _support_opengl_version_40 = GLEW_VERSION_4_0 ? true : false;
// _support_opengl_version_41 = GLEW_VERSION_4_1 ? true : false;
#ifndef NUX_OPENGLES_20
// See: http://developer.nvidia.com/object/General_FAQ.html
// The value of GL_MAX_TEXTURE_UNITS is 4 for GeForce FX and GeForce 6 Series GPUs. Why is that, since those GPUs have 16 texture units?
CHECKGL (glGetIntegerv (GL_MAX_TEXTURE_UNITS, &_opengl_max_texture_units));
CHECKGL (glGetIntegerv (GL_MAX_TEXTURE_COORDS, &_opengl_max_texture_coords));
CHECKGL (glGetIntegerv (GL_MAX_TEXTURE_IMAGE_UNITS_ARB, &_opengl_max_texture_image_units));
CHECKGL (glGetIntegerv (GL_MAX_VERTEX_ATTRIBS, &_opengl_max_vertex_attributes));
CHECKGL (glGetIntegerv (GL_MAX_COLOR_ATTACHMENTS_EXT, &_opengl_max_fb_attachment));
#else
_opengl_max_fb_attachment = 1;
#endif
#if defined(NUX_OS_WINDOWS)
_support_ext_swap_control = WGLEW_EXT_swap_control ? true : false;
#elif defined(NUX_OS_LINUX)
_support_ext_swap_control = GLXEW_SGI_swap_control ? true : false;
#elif defined(NUX_OS_LINUX)
_support_ext_swap_control = GLXEW_SGI_swap_control ? true : false;
#endif
_support_arb_vertex_program = GLEW_ARB_vertex_program ? true : false;
_support_arb_fragment_program = GLEW_ARB_fragment_program ? true : false;
_support_ext_framebuffer_object = GLEW_EXT_framebuffer_object ? true : false;
_support_arb_shader_objects = GLEW_ARB_shader_objects ? true : false;
_support_arb_vertex_shader = GLEW_ARB_vertex_shader ? true : false;
_support_arb_fragment_shader = GLEW_ARB_fragment_shader ? true : false;
_support_arb_vertex_buffer_object = GLEW_ARB_vertex_buffer_object ? true : false;
_support_arb_texture_non_power_of_two = GLEW_ARB_texture_non_power_of_two ? true : false;
_support_ext_draw_range_elements = GLEW_EXT_draw_range_elements ? true : false;
_support_ext_stencil_two_side = GLEW_EXT_stencil_two_side ? true : false;
_support_ext_texture_rectangle = GLEW_EXT_texture_rectangle ? true : false;
_support_arb_texture_rectangle = GLEW_ARB_texture_rectangle ? true : false;
_support_nv_texture_rectangle = GLEW_NV_texture_rectangle ? true : false;
_support_arb_pixel_buffer_object = GLEW_ARB_pixel_buffer_object ? true : false;
_support_ext_blend_equation_separate = GLEW_EXT_blend_equation_separate ? true : false;
#ifndef NUX_OPENGLES_20
_support_ext_texture_srgb = GLEW_EXT_texture_sRGB ? true : false;
_support_ext_texture_srgb_decode = false; //GLEW_EXT_texture_sRGB_decode ? true : false;
_support_ext_framebuffer_srgb = GLEW_EXT_framebuffer_sRGB ? true : false;
_support_arb_framebuffer_srgb = GLEW_ARB_framebuffer_sRGB ? true : false;
#endif
}
#if defined (NUX_OS_WINDOWS)
GpuDevice::GpuDevice (t_u32 DeviceWidth, t_u32 DeviceHeight, BitmapFormat DeviceFormat,
HDC device_context,
HGLRC &opengl_rendering_context,
int req_opengl_major,
int req_opengl_minor,
bool opengl_es_20)
#elif defined (NUX_OS_LINUX)
GpuDevice::GpuDevice (t_u32 DeviceWidth, t_u32 DeviceHeight, BitmapFormat DeviceFormat,
Display *display,
Window window,
bool has_glx_13_support,
GLXFBConfig fb_config,
GLXContext &opengl_rendering_context,
int req_opengl_major,
int req_opengl_minor,
bool opengl_es_20)
#endif
{
_PixelStoreAlignment = 4;
_UsePixelBufferObject = false;
_gpu_info = NULL;
_gpu_brand = GPU_VENDOR_UNKNOWN;
// OpenGL extension initialization
GLenum Glew_Ok = 0;
#ifdef GLEW_MX
Glew_Ok = glewContextInit (glewGetContext() );
nuxAssertMsg (Glew_Ok == GLEW_OK, TEXT ("[GpuDevice::GpuDevice] GL Extensions failed to initialize."));
#if defined(NUX_OS_WINDOWS)
Glew_Ok = wglewContextInit (wglewGetContext() );
#elif defined(NUX_OS_LINUX)
Glew_Ok = glxewContextInit (glxewGetContext() );
#elif defined(NUX_OS_MACOSX)
Glew_Ok = glxewContextInit (glxewGetContext() );
#endif
nuxAssertMsg (Glew_Ok == GLEW_OK, TEXT ("[GpuDevice::GpuDevice] OpenGL Extensions failed to initialize."));
#else
Glew_Ok = glewInit();
#endif
#ifndef NUX_OPENGLES_20
CHECKGL (glGetIntegerv (GL_MAJOR_VERSION, &_opengl_major));
CHECKGL (glGetIntegerv (GL_MINOR_VERSION, &_opengl_minor));
#else
_opengl_major = 2;
_opengl_minor = 0;
#endif
bool opengl_es_context_created = false;
#if defined (NUX_OS_WINDOWS)
if (((_opengl_major >= 3) && (req_opengl_major >= 3)) || (_opengl_major >= 3) || opengl_es_20)
#elif defined (NUX_OS_LINUX)
if (has_glx_13_support && (((_opengl_major >= 3) && (req_opengl_major >= 3)) || ((_opengl_major >= 3) && opengl_es_20)))
#endif
{
// Create a new Opengl Rendering Context
bool requested_profile_is_supported = false;
int index = 0;
for (index = 0; OpenGLVersionTable [index].major != 0; index++)
{
if ((OpenGLVersionTable[index].major == req_opengl_major) &&
(OpenGLVersionTable[index].minor == req_opengl_minor))
{
if (_opengl_major == 1)
{
if ((req_opengl_major == 1) && (req_opengl_minor >= 0) && (req_opengl_minor <= 5))
requested_profile_is_supported = true;
}
else if (_opengl_major == 2)
{
if ((req_opengl_major == 2) && (req_opengl_minor >= 0) && (req_opengl_minor <= 1))
requested_profile_is_supported = true;
}
else if (_opengl_major == 3)
{
if ((req_opengl_major == 3) && (req_opengl_minor >= 0) && (req_opengl_minor <= 3))
requested_profile_is_supported = true;
}
else if (_opengl_major == 4)
{
if ((req_opengl_major == 4) && (req_opengl_minor >= 0) && (req_opengl_minor <= 1))
requested_profile_is_supported = true;
}
break;
}
}
if (opengl_es_20)
{
#if defined (NUX_OS_WINDOWS)
int attribs[] =
{
WGL_CONTEXT_MAJOR_VERSION_ARB, 2,
WGL_CONTEXT_MINOR_VERSION_ARB, 0,
WGL_CONTEXT_PROFILE_MASK_ARB, //WGL_CONTEXT_ES2_PROFILE_BIT_EXT,
0
};
HGLRC new_opengl_rendering_context = wglCreateContextAttribsARB(device_context,0, attribs);
if (new_opengl_rendering_context == 0)
{
nuxDebugMsg (TEXT("[GpuDevice::GpuDevice] OpenGL ES 2.0 context creation has failed."));
}
else
{
wglMakeCurrent (NULL, NULL);
wglDeleteContext (opengl_rendering_context);
opengl_rendering_context = new_opengl_rendering_context;
wglMakeCurrent (device_context, opengl_rendering_context);
opengl_es_context_created = true;
}
#elif defined (NUX_OS_LINUX)
int attribs[] =
{
GLX_CONTEXT_MAJOR_VERSION_ARB, 2,
GLX_CONTEXT_MINOR_VERSION_ARB, 0,
//GLX_CONTEXT_PROFILE_MASK_ARB, GLX_CONTEXT_ES2_PROFILE_BIT_EXT,
0
};
GLXContext new_opengl_rendering_context = glXCreateContextAttribsARB(display, fb_config, 0, true, attribs);
if (new_opengl_rendering_context == 0)
{
nuxDebugMsg (TEXT("[GpuDevice::GpuDevice] OpenGL ES 2.0 context creation has failed."));
}
else
{
opengl_rendering_context = new_opengl_rendering_context;
glXMakeCurrent (display, window, opengl_rendering_context);
opengl_es_context_created = true;
}
#endif
}
else if (requested_profile_is_supported)
{
int profile_mask = 0;
int profile_value = 0;
int flag_mask = 0;
int flag_value = 0;
#if defined (NUX_OS_WINDOWS)
if (((req_opengl_major == 3) && (req_opengl_minor >= 3)) || (req_opengl_major >= 4))
{
profile_mask = WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB;
profile_value = WGL_CONTEXT_PROFILE_MASK_ARB;
flag_mask = WGL_CONTEXT_FLAGS_ARB;
flag_value = 0;
}
int attribs[] =
{
WGL_CONTEXT_MAJOR_VERSION_ARB, req_opengl_major,
WGL_CONTEXT_MINOR_VERSION_ARB, req_opengl_minor,
profile_mask, profile_value,
flag_mask, flag_value,
0
};
HGLRC new_opengl_rendering_context = wglCreateContextAttribsARB(device_context,0, attribs);
if (new_opengl_rendering_context == 0)
{
nuxDebugMsg (TEXT("[GpuDevice::GpuDevice] OpenGL version %d.%d context creation has failed."), req_opengl_major, req_opengl_minor);
}
else
{
wglMakeCurrent (NULL, NULL);
wglDeleteContext (opengl_rendering_context);
opengl_rendering_context = new_opengl_rendering_context;
wglMakeCurrent (device_context, opengl_rendering_context);
}
#elif defined (NUX_OS_LINUX)
if (((req_opengl_major == 3) && (req_opengl_minor >= 3)) || (req_opengl_major >= 4))
{
profile_mask = GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB;
profile_value = GLX_CONTEXT_PROFILE_MASK_ARB;
flag_mask = GLX_CONTEXT_FLAGS_ARB;
flag_value = 0;
}
int attribs[] =
{
GLX_CONTEXT_MAJOR_VERSION_ARB, req_opengl_major,
GLX_CONTEXT_MINOR_VERSION_ARB, req_opengl_minor,
profile_mask, profile_value,
flag_mask, flag_value,
0
};
GLXContext new_opengl_rendering_context = glXCreateContextAttribsARB(display, fb_config, 0, true, attribs);
if (new_opengl_rendering_context == 0)
{
nuxDebugMsg (TEXT("[GpuDevice::GpuDevice] OpenGL version %d.%d context creation has failed."), req_opengl_major, req_opengl_minor);
attribs[0] = 1; // major version
attribs[1] = 0; // minor version
attribs[2] = 0;
new_opengl_rendering_context = glXCreateContextAttribsARB(display, fb_config, 0, true, attribs);
opengl_rendering_context = new_opengl_rendering_context;
glXMakeCurrent (display, window, opengl_rendering_context);
}
else
{
opengl_rendering_context = new_opengl_rendering_context;
glXMakeCurrent (display, window, opengl_rendering_context);
}
#endif
}
else
{
nuxDebugMsg (TEXT("[GpuDevice::GpuDevice] Using highest default OpenGL version."));
}
}
else
{
opengl_rendering_context = 0;
}
_board_vendor_string = ANSI_TO_TCHAR (NUX_REINTERPRET_CAST (const char *, glGetString (GL_VENDOR) ) );
CHECKGL_MSG (glGetString (GL_VENDOR) );
_board_renderer_string = ANSI_TO_TCHAR (NUX_REINTERPRET_CAST (const char *, glGetString (GL_RENDERER) ) );
CHECKGL_MSG (glGetString (GL_RENDERER) );
_openGL_version_string = ANSI_TO_TCHAR (NUX_REINTERPRET_CAST (const char *, glGetString (GL_VERSION) ) );
CHECKGL_MSG (glGetString (GL_VERSION) );
if (GLEW_VERSION_2_0)
{
_glsl_version_string = ANSI_TO_TCHAR (NUX_REINTERPRET_CAST (const char *, glGetString (GL_SHADING_LANGUAGE_VERSION) ) );
CHECKGL_MSG (glGetString (GL_SHADING_LANGUAGE_VERSION) );
NString glsl_major;
NString glsl_minor;
TCHAR split = TEXT('.');
_glsl_version_string.SplitAtFirstOccurenceOf(split, glsl_major, glsl_minor);
}
nuxDebugMsg (TEXT ("Gpu Vendor: %s"), _board_vendor_string.GetTCharPtr() );
nuxDebugMsg (TEXT ("Gpu Renderer: %s"), _board_renderer_string.GetTCharPtr() );
nuxDebugMsg (TEXT ("Gpu OpenGL Version: %s"), _openGL_version_string.GetTCharPtr() );
nuxDebugMsg (TEXT ("Gpu GLSL Version: %s"), _glsl_version_string.GetTCharPtr() );
// Get the version supported by the context that was set.
if (opengl_es_20 && opengl_es_context_created)
{
}
else
{
int new_opengl_major;
int new_opengl_minor;
CHECKGL (glGetIntegerv (GL_MAJOR_VERSION, &new_opengl_major));
CHECKGL (glGetIntegerv (GL_MINOR_VERSION, &new_opengl_minor));
if ((new_opengl_major != _opengl_major) || (new_opengl_minor != _opengl_minor))
{
nuxDebugMsg (TEXT ("The Gpu supports OpenGL %d.%d but version %d.%d has been requested."), _opengl_major, _opengl_minor, new_opengl_major, new_opengl_minor);
}
}
NString TempStr = (const TCHAR *) TCharToUpperCase (_board_vendor_string.GetTCharPtr() );
if (TempStr.FindFirstOccurence (TEXT ("NVIDIA") ) != tstring::npos)
{
_gpu_brand = GPU_BRAND_NVIDIA;
}
else if (TempStr.FindFirstOccurence (TEXT ("ATI") ) != tstring::npos)
{
_gpu_brand = GPU_BRAND_AMD;
}
else if (TempStr.FindFirstOccurence (TEXT ("TUNGSTEN") ) != tstring::npos)
{
_gpu_brand = GPU_BRAND_INTEL;
}
if (0)
{
if (GetGPUBrand() == GPU_BRAND_AMD)
_UsePixelBufferObject = false;
else
_UsePixelBufferObject = true;
}
else
{
_UsePixelBufferObject = false;
}
_gpu_info = new GpuInfo ();
_gpu_info->Setup ();
_gpu_render_states = new GpuRenderStates (_gpu_brand, _gpu_info);
#if defined(NUX_OS_WINDOWS)
OGL_EXT_SWAP_CONTROL = WGLEW_EXT_swap_control ? true : false;
#elif defined(NUX_OS_LINUX)
OGL_EXT_SWAP_CONTROL = GLXEW_SGI_swap_control ? true : false;
#elif defined(NUX_OS_LINUX)
OGL_EXT_SWAP_CONTROL = GLXEW_SGI_swap_control ? true : false;
#endif
InitTextureFormats();
// See Avoiding 16 Common OpenGL Pitfalls
// 7. Watch Your Pixel Store Alignment
// http://www.opengl.org/resources/features/KilgardTechniques/oglpitfall/
// We use a pack /unpack alignment to 1 so we don't have any padding at the end of row.
CHECKGL (glPixelStorei (GL_UNPACK_ALIGNMENT, _PixelStoreAlignment));
CHECKGL (glPixelStorei (GL_PACK_ALIGNMENT, _PixelStoreAlignment));
// _DeviceWidth = DeviceWidth;
// _DeviceHeight = DeviceHeight;
//
// _ViewportX = 0;
// _ViewportY = 0;
// _ViewportWidth = DeviceWidth;
// _ViewportHeight = DeviceHeight;
for (int i = 0; i < MAX_NUM_STREAM; i++)
{
_StreamSource[i].ResetStreamSource();
}
// Configure NVidia CG
#if (NUX_ENABLE_CG_SHADERS)
{
m_Cgcontext = 0;
// Create Cg context and set profile.
CHECKGL ( cgSetErrorCallback ( cgErrorCallback ) );
m_Cgcontext = cgCreateContext();
nuxAssert (m_Cgcontext);
//CHECKGL( cgGLEnableProfile( CG_PROFILE_VP40 ) );
//CHECKGL( cgGLEnableProfile( CG_PROFILE_FP40 ) );
CHECKGL ( cgGLSetManageTextureParameters ( m_Cgcontext, CG_FALSE ) );
}
#endif
if (GetGpuInfo ().Support_EXT_Framebuffer_Object ())
{
_FrameBufferObject = CreateFrameBufferObject ();
_FrameBufferObject->Deactivate ();
}
}
GpuDevice::~GpuDevice()
{
NUX_SAFE_DELETE (_gpu_info);
NUX_SAFE_DELETE (_gpu_render_states);
_FrameBufferObject.Release ();
_CurrentFrameBufferObject.Release ();
_PixelBufferArray.clear ();
for (int i = 0; i < MAX_NUM_STREAM; i++)
{
_StreamSource[i].ResetStreamSource();
}
// NVidia CG
#if (NUX_ENABLE_CG_SHADERS)
cgDestroyContext (m_Cgcontext);
#endif
}
ObjectPtr<IOpenGLFrameBufferObject> GpuDevice::CreateFrameBufferObject()
{
IOpenGLFrameBufferObject *ptr;
CreateFrameBufferObject ( (IOpenGLFrameBufferObject **) &ptr);
ObjectPtr<IOpenGLFrameBufferObject> h = ObjectPtr<IOpenGLFrameBufferObject> (ptr);
ptr->UnReference ();
return h;
}
int GpuDevice::CreateFrameBufferObject (IOpenGLFrameBufferObject **ppFrameBufferObject)
{
*ppFrameBufferObject = new IOpenGLFrameBufferObject(NUX_TRACKER_LOCATION);
return OGL_OK;
}
int GpuDevice::GetOpenGLMajorVersion () const
{
return _opengl_major;
}
int GpuDevice::GetOpenGLMinorVersion () const
{
return _opengl_minor;
}
GpuBrand GpuDevice::GetGPUBrand() const
{
return _gpu_brand;
}
GpuRenderStates &GpuDevice::GetRenderStates()
{
return *_gpu_render_states;
}
GpuInfo &GpuDevice::GetGpuInfo()
{
return *_gpu_info;
}
void GpuDevice::ResetRenderStates()
{
_gpu_render_states->ResetStateChangeToDefault();
}
void GpuDevice::VerifyRenderStates()
{
_gpu_render_states->CheckStateChange();
}
void GpuDevice::InvalidateTextureUnit (int TextureUnitIndex)
{
CHECKGL (glActiveTextureARB (TextureUnitIndex) );
CHECKGL (glBindTexture (GL_TEXTURE_1D, 0) );
CHECKGL (glBindTexture (GL_TEXTURE_2D, 0) );
CHECKGL (glBindTexture (GL_TEXTURE_CUBE_MAP, 0) );
CHECKGL (glBindTexture (GL_TEXTURE_3D, 0) );
CHECKGL (glBindTexture (GL_TEXTURE_RECTANGLE_ARB, 0) );
// From lowest priority to highest priority:
// GL_TEXTURE_1D,
// GL_TEXTURE_2D,
// GL_TEXTURE_RECTANGLE_ARB,
// GL_TEXTURE_3D,
// GL_TEXTURE_CUBE_MAP.
CHECKGL (glDisable (GL_TEXTURE_1D) );
CHECKGL (glDisable (GL_TEXTURE_2D) );
CHECKGL (glDisable (GL_TEXTURE_RECTANGLE_ARB) );
CHECKGL (glDisable (GL_TEXTURE_3D) );
CHECKGL (glDisable (GL_TEXTURE_CUBE_MAP) );
}
int GpuDevice::AllocateUnpackPixelBufferIndex (int *index)
{
t_u32 num = (t_u32) _PixelBufferArray.size();
for (t_u32 i = 0; i < num; i++)
{
if (_PixelBufferArray[i].IsReserved == FALSE)
{
_PixelBufferArray[i].IsReserved = TRUE;
*index = i;
return OGL_OK;
}
}
// Not enough free pbo
PixelBufferObject pbo;
pbo.PBO = CreatePixelBufferObject (4, (VBO_USAGE) GL_STATIC_DRAW);
pbo.IsReserved = TRUE;
_PixelBufferArray.push_back (pbo);
*index = (int) _PixelBufferArray.size() - 1;
return OGL_OK;
}
int GpuDevice::FreeUnpackPixelBufferIndex (const int index)
{
t_s32 num = (t_s32) _PixelBufferArray.size();
nuxAssertMsg ( (index >= 0) && (index < num), TEXT ("[GpuDevice::FreeUnpackPixelBufferIndex] Trying to Free a pixel buffer index that does not exist.") );
if ( (index < 0) || (index >= num) )
{
return OGL_ERROR;
}
_PixelBufferArray[index].IsReserved = false;
// // if(0)
// // {
// // // Can we realloc the memory used by the buffer with much less memory (4x4bytes)???
// // CHECKGL( glBindBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, OpenGLID) );
// // CHECKGL( glBufferDataARB(GL_PIXEL_UNPACK_BUFFER_ARB, 4*4, NULL, GL_STREAM_DRAW_ARB) );
// // }
return OGL_OK;
}
void *GpuDevice::LockUnpackPixelBufferIndex (const int index, int Size)
{
BindUnpackPixelBufferIndex (index);
CHECKGL ( glBufferDataARB (GL_PIXEL_UNPACK_BUFFER_ARB, Size, NULL, GL_STREAM_DRAW) );
void *pBits = glMapBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB, GL_WRITE_ONLY_ARB);
CHECKGL_MSG (glMapBufferARB );
CHECKGL ( glBindBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB, 0) );
return pBits;
}
void* GpuDevice::LockPackPixelBufferIndex (const int index, int Size)
{
BindPackPixelBufferIndex (index);
CHECKGL ( glBufferDataARB (GL_PIXEL_PACK_BUFFER_ARB, Size, NULL, GL_STREAM_DRAW) );
void *pBits = glMapBufferARB (GL_PIXEL_PACK_BUFFER_ARB, GL_WRITE_ONLY_ARB);
CHECKGL_MSG (glMapBufferARB );
CHECKGL ( glBindBufferARB (GL_PIXEL_PACK_BUFFER_ARB, 0) );
return pBits;
}
void GpuDevice::UnlockUnpackPixelBufferIndex (const int index)
{
BindUnpackPixelBufferIndex (index);
CHECKGL ( glUnmapBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB) );
CHECKGL ( glBindBufferARB (GL_PIXEL_PACK_BUFFER_ARB, 0) );
}
void GpuDevice::UnlockPackPixelBufferIndex (const int index)
{
BindPackPixelBufferIndex (index);
CHECKGL ( glUnmapBufferARB (GL_PIXEL_UNPACK_BUFFER_ARB) );
CHECKGL ( glBindBufferARB (GL_PIXEL_PACK_BUFFER_ARB, 0) );
}
int GpuDevice::BindUnpackPixelBufferIndex (const int index)
{
t_s32 num = (t_s32) _PixelBufferArray.size();
nuxAssertMsg ( (index >= 0) && (index < num), TEXT ("[GpuDevice::BindUnpackPixelBufferIndex] Trying to bind an invalid pixel buffer index.") );
if ( (index < 0) || (index >= num) )
{
return OGL_ERROR;
}
nuxAssertMsg (_PixelBufferArray[index].IsReserved == true, TEXT ("[GpuDevice::BindUnpackPixelBufferIndex] Trying to reserved pixel buffer index.") );
if (_PixelBufferArray[index].IsReserved == false)
{
return OGL_ERROR;
}
_PixelBufferArray[index].PBO->BindUnpackPixelBufferObject();
return OGL_OK;
}
int GpuDevice::BindPackPixelBufferIndex (const int index)
{
t_s32 num = (t_s32) _PixelBufferArray.size();
nuxAssertMsg ( (index >= 0) && (index < num), TEXT ("[GpuDevice::BindPackPixelBufferIndex] Trying to bind an invalid pixel buffer index.") );
if ( (index < 0) || (index >= num) )
{
return OGL_ERROR;
}
nuxAssertMsg (_PixelBufferArray[index].IsReserved == true, TEXT ("[GpuDevice::BindPackPixelBufferIndex] Trying to reserved pixel buffer index.") );
if (_PixelBufferArray[index].IsReserved == false)
{
return OGL_ERROR;
}
_PixelBufferArray[index].PBO->BindPackPixelBufferObject();
return OGL_OK;
}
int GpuDevice::FormatFrameBufferObject (t_u32 Width, t_u32 Height, BitmapFormat PixelFormat)
{
if (!GetGpuInfo ().Support_EXT_Framebuffer_Object ())
{
nuxDebugMsg (TEXT ("[GpuDevice::FormatFrameBufferObject] No support for OpenGL framebuffer extension.") );
return 0;
}
return _FrameBufferObject->FormatFrameBufferObject (Width, Height, PixelFormat);
}
int GpuDevice::SetColorRenderTargetSurface (t_u32 ColorAttachmentIndex, ObjectPtr<IOpenGLSurface> pRenderTargetSurface)
{
if (!GetGpuInfo ().Support_EXT_Framebuffer_Object ())
{
nuxDebugMsg (TEXT ("[GpuDevice::SetColorRenderTargetSurface] No support for OpenGL framebuffer extension.") );
return 0;
}
return _FrameBufferObject->SetRenderTarget (ColorAttachmentIndex, pRenderTargetSurface);
}
int GpuDevice::SetDepthRenderTargetSurface (ObjectPtr<IOpenGLSurface> pDepthSurface)
{
if (!GetGpuInfo ().Support_EXT_Framebuffer_Object ())
{
nuxDebugMsg (TEXT ("[GpuDevice::SetDepthRenderTargetSurface] No support for OpenGL framebuffer extension.") );
return 0;
}
return _FrameBufferObject->SetDepthSurface (pDepthSurface);
}
ObjectPtr<IOpenGLSurface> GpuDevice::GetColorRenderTargetSurface (t_u32 ColorAttachmentIndex)
{
if (!GetGpuInfo ().Support_EXT_Framebuffer_Object ())
{
nuxDebugMsg (TEXT ("[GpuDevice::GetColorRenderTargetSurface] No support for OpenGL framebuffer extension.") );
return ObjectPtr<IOpenGLSurface> (0);
}
return _FrameBufferObject->GetRenderTarget (ColorAttachmentIndex);
}
ObjectPtr<IOpenGLSurface> GpuDevice::GetDepthRenderTargetSurface()
{
if (!GetGpuInfo ().Support_EXT_Framebuffer_Object ())
{
nuxDebugMsg (TEXT ("[GpuDevice::GetDepthRenderTargetSurface] No support for OpenGL framebuffer extension.") );
return ObjectPtr<IOpenGLSurface> (0);
}
return _FrameBufferObject->GetDepthRenderTarget();
}
void GpuDevice::ActivateFrameBuffer()
{
if (!GetGpuInfo ().Support_EXT_Framebuffer_Object ())
{
nuxDebugMsg (TEXT ("[GpuDevice::ActivateFrameBuffer] No support for OpenGL framebuffer extension.") );
return;
}
_FrameBufferObject->Activate();
}
void GpuDevice::SetCurrentFrameBufferObject (ObjectPtr<IOpenGLFrameBufferObject> fbo)
{
_CurrentFrameBufferObject = fbo;
}
ObjectPtr<IOpenGLFrameBufferObject> GpuDevice::GetCurrentFrameBufferObject()
{
return _CurrentFrameBufferObject;
}
void GpuDevice::DeactivateFrameBuffer ()
{
if (!GetGpuInfo ().Support_EXT_Framebuffer_Object () )
{
nuxDebugMsg (TEXT ("[GpuDevice::DeactivateFrameBuffer] No support for OpenGL framebuffer extension.") );
return;
}
_CurrentFrameBufferObject.Release ();
CHECKGL ( glBindFramebufferEXT (GL_FRAMEBUFFER_EXT, 0));
CHECKGL ( glBindRenderbufferEXT (GL_RENDERBUFFER_EXT, 0));
}
ObjectPtr<IOpenGLBaseTexture> GpuDevice::CreateSystemCapableDeviceTexture (
int Width
, int Height
, int Levels
, BitmapFormat PixelFormat)
{
if(GetGpuInfo().Support_ARB_Texture_Non_Power_Of_Two())
{
return CreateTexture (Width, Height, Levels, PixelFormat);
}
if(GetGpuInfo().Support_EXT_Texture_Rectangle () || GetGpuInfo().Support_ARB_Texture_Rectangle ())
{
return CreateRectangleTexture (Width, Height, Levels, PixelFormat);
}
nuxAssertMsg(0, TEXT("[NuxGraphicsResources::CreateSystemCapableDeviceTexture] No support for non power of two textures or rectangle textures"));
return ObjectPtr<IOpenGLBaseTexture>();
}
BaseTexture* GpuDevice::CreateSystemCapableTexture ()
{
if(GetGpuInfo().Support_ARB_Texture_Non_Power_Of_Two())
{
return new Texture2D (NUX_TRACKER_LOCATION);
}
if(GetGpuInfo().Support_EXT_Texture_Rectangle () || GetGpuInfo().Support_ARB_Texture_Rectangle ())
{
return new TextureRectangle (NUX_TRACKER_LOCATION);
}
nuxAssertMsg(0, TEXT("[NuxGraphicsResources::CreateSystemCapableTexture] No support for non power of two textures or rectangle textures"));
return 0;
}
}
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