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- added support for pixel buffers and use it for color picking (eventually for screenshots)

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This commit is contained in:
Mark Vejvoda
2011-12-13 19:52:17 +00:00
parent 2dd2afb296
commit c4dc1e616b
5 changed files with 176 additions and 77 deletions
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49
source/shared_lib/sources/graphics/gl/texture_gl.cpp
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@@ -24,49 +24,6 @@
using namespace std;
// Define FBO's (Frame Buffer Objects) for win32
/*
#ifdef WIN32
#define GL_FRAMEBUFFER_EXT 0x8D40
#define GL_COLOR_ATTACHMENT0_EXT 0x8CE0
#define GL_RENDERBUFFER_EXT 0x8D41
#define GL_DEPTH_ATTACHMENT_EXT 0x8D00
#define GL_FRAMEBUFFER_COMPLETE_EXT 0x8CD5
typedef void (APIENTRY * PFNGLGENFRAMEBUFFERSEXTPROC) (GLsizei n, GLuint* framebuffers);
typedef void (APIENTRY * PFNGLBINDFRAMEBUFFEREXTPROC) (GLenum target, GLuint framebuffer);
typedef void (APIENTRY * PFNGLBINDRENDERBUFFEREXTPROC) (GLenum target, GLuint renderbuffer);
typedef GLenum (APIENTRY * PFNGLCHECKFRAMEBUFFERSTATUSEXTPROC) (GLenum target);
typedef void (APIENTRY * PFNGLDELETEFRAMEBUFFERSEXTPROC) (GLsizei n, const GLuint* framebuffers);
typedef void (APIENTRY * PFNGLDELETERENDERBUFFERSEXTPROC) (GLsizei n, const GLuint* renderbuffers);
typedef void (APIENTRY * PFNGLFRAMEBUFFERRENDERBUFFEREXTPROC) (GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer);
typedef void (APIENTRY * PFNGLFRAMEBUFFERTEXTURE1DEXTPROC) (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
typedef void (APIENTRY * PFNGLFRAMEBUFFERTEXTURE2DEXTPROC) (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
typedef void (APIENTRY * PFNGLFRAMEBUFFERTEXTURE3DEXTPROC) (GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level, GLint zoffset);
typedef void (APIENTRY * PFNGLGENRENDERBUFFERSEXTPROC) (GLsizei n, GLuint* renderbuffers);
typedef void (APIENTRY * PFNGLGENERATEMIPMAPEXTPROC) (GLenum target);
typedef void (APIENTRY * PFNGLGETFRAMEBUFFERATTACHMENTPARAMETERIVEXTPROC) (GLenum target, GLenum attachment, GLenum pname, GLint* params);
typedef void (APIENTRY * PFNGLGETRENDERBUFFERPARAMETERIVEXTPROC) (GLenum target, GLenum pname, GLint* params);
typedef GLboolean (APIENTRY * PFNGLISFRAMEBUFFEREXTPROC) (GLuint framebuffer);
typedef GLboolean (APIENTRY * PFNGLISRENDERBUFFEREXTPROC) (GLuint renderbuffer);
typedef void (APIENTRY * PFNGLRENDERBUFFERSTORAGEEXTPROC) (GLenum target, GLenum internalformat, GLsizei width, GLsizei height);
PFNGLGENFRAMEBUFFERSEXTPROC glGenFramebuffersEXT = NULL;
PFNGLBINDFRAMEBUFFEREXTPROC glBindFramebufferEXT = NULL;
PFNGLFRAMEBUFFERTEXTURE2DEXTPROC glFramebufferTexture2DEXT = NULL;
PFNGLCHECKFRAMEBUFFERSTATUSEXTPROC glCheckFramebufferStatusEXT = NULL;
PFNGLDELETEFRAMEBUFFERSEXTPROC glDeleteFramebuffersEXT = NULL;
PFNGLRENDERBUFFERSTORAGEEXTPROC glRenderbufferStorageEXT = NULL;
PFNGLGENRENDERBUFFERSEXTPROC glGenRenderbuffersEXT = NULL;
PFNGLFRAMEBUFFERRENDERBUFFEREXTPROC glFramebufferRenderbufferEXT = NULL;
PFNGLDELETERENDERBUFFERSEXTPROC glDeleteRenderbuffersEXT = NULL;
PFNGLBINDRENDERBUFFEREXTPROC glBindRenderbufferEXT = NULL;
#endif
*/
namespace Shared { namespace Graphics { namespace Gl {
using namespace Platform;
@@ -81,12 +38,6 @@ static void setupGLExtensionMethods() {
if(setupExtensions == true) {
setupExtensions = false;
//glGenFramebuffersEXT= (PFNGLGENFRAMEBUFFERSEXTPROC)SDL_GL_GetProcAddress("glGenFramebuffersEXT");
//glBindFramebufferEXT= (PFNGLBINDFRAMEBUFFEREXTPROC)SDL_GL_GetProcAddress("glBindFramebufferEXT");
//glFramebufferTexture2DEXT= (PFNGLFRAMEBUFFERTEXTURE2DEXTPROC)SDL_GL_GetProcAddress("glFramebufferTexture2DEXT");
//glDeleteFramebuffersEXT = (PFNGLDELETEFRAMEBUFFERSEXTPROC)SDL_GL_GetProcAddress("glDeleteFramebuffersEXT");
//glCheckFramebufferStatusEXT= (PFNGLCHECKFRAMEBUFFERSTATUSEXTPROC)SDL_GL_GetProcAddress("glCheckFramebufferStatusEXT");
if(isGlExtensionSupported("GL_EXT_framebuffer_object")) {
//glIsRenderbufferEXT = (PFNGLISRENDERBUFFEREXTPROC)wglGetProcAddress("glIsRenderbufferEXT");
glBindRenderbufferEXT = (PFNGLBINDRENDERBUFFEREXTPROC)wglGetProcAddress("glBindRenderbufferEXT");