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OpenGL2: Direct state access, part 1: Texture binds

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SmileTheory 2016-01-18 04:46:01 -08:00
parent 3089df0398
commit 275317fefb
16 changed files with 356 additions and 235 deletions
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52
code/renderergl2/tr_extensions.c
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@ -28,6 +28,7 @@ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
#endif
#include "tr_local.h"
#include "tr_dsa.h"
// GL_EXT_draw_range_elements
void (APIENTRY * qglDrawRangeElementsEXT) (GLenum mode, GLuint start, GLuint end, GLsizei count, GLenum type, const GLvoid *indices);
@ -184,6 +185,23 @@ void (APIENTRY * qglDeleteVertexArraysARB)(GLsizei n, const GLuint *arrays);
void (APIENTRY * qglGenVertexArraysARB)(GLsizei n, GLuint *arrays);
GLboolean (APIENTRY * qglIsVertexArrayARB)(GLuint array);
// GL_EXT_direct_state_access
GLvoid (APIENTRY * qglBindMultiTexture)(GLenum texunit, GLenum target, GLuint texture);
GLvoid (APIENTRY * qglTextureParameterf)(GLuint texture, GLenum target, GLenum pname, GLfloat param);
GLvoid (APIENTRY * qglTextureParameteri)(GLuint texture, GLenum target, GLenum pname, GLint param);
GLvoid (APIENTRY * qglTextureImage2D)(GLuint texture, GLenum target, GLint level, GLint internalformat,
GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const GLvoid *pixels);
GLvoid (APIENTRY * qglTextureSubImage2D)(GLuint texture, GLenum target, GLint level, GLint xoffset, GLint yoffset,
GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *pixels);
GLvoid (APIENTRY * qglCopyTextureImage2D)(GLuint texture, GLenum target, GLint level, GLenum internalformat,
GLint x, GLint y, GLsizei width, GLsizei height, GLint border);
GLvoid (APIENTRY * qglCompressedTextureImage2D)(GLuint texture, GLenum target, GLint level, GLenum internalformat,
GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const GLvoid *data);
GLvoid (APIENTRY * qglCompressedTextureSubImage2D)(GLuint texture, GLenum target, GLint level,
GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format,
GLsizei imageSize, const GLvoid *data);
GLvoid (APIENTRY * qglGenerateTextureMipmap)(GLuint texture, GLenum target);
static qboolean GLimp_HaveExtension(const char *ext)
{
const char *ptr = Q_stristr( glConfig.extensions_string, ext );
@ -750,4 +768,38 @@ void GLimp_InitExtraExtensions()
ri.Printf(PRINT_ALL, result[2], extension);
}
// GL_EXT_direct_state_access
extension = "GL_EXT_direct_state_access";
qglBindMultiTexture = GLDSA_BindMultiTexture;
qglTextureParameterf = GLDSA_TextureParameterf;
qglTextureParameteri = GLDSA_TextureParameteri;
qglTextureImage2D = GLDSA_TextureImage2D;
qglTextureSubImage2D = GLDSA_TextureSubImage2D;
qglCopyTextureImage2D = GLDSA_CopyTextureImage2D;
qglCompressedTextureImage2D = GLDSA_CompressedTextureImage2D;
qglCompressedTextureSubImage2D = GLDSA_CompressedTextureSubImage2D;
qglGenerateTextureMipmap = GLDSA_GenerateTextureMipmap;
glRefConfig.directStateAccess = qfalse;
if (GLimp_HaveExtension(extension))
{
if (r_ext_direct_state_access->integer)
{
glRefConfig.directStateAccess = qtrue;
qglBindMultiTexture = (void *)SDL_GL_GetProcAddress("glBindMultiTextureEXT");
qglTextureParameterf = (void *)SDL_GL_GetProcAddress("glTextureParameterfEXT");
qglTextureParameteri = (void *)SDL_GL_GetProcAddress("glTextureParameteriEXT");
qglTextureImage2D = (void *)SDL_GL_GetProcAddress("glTextureImage2DEXT");
qglTextureSubImage2D = (void *)SDL_GL_GetProcAddress("glTextureSubImage2DEXT");
qglCopyTextureImage2D = (void *)SDL_GL_GetProcAddress("glCopyTextureImage2DEXT");
qglCompressedTextureImage2D = (void *)SDL_GL_GetProcAddress("glCompressedTextureImage2DEXT");
qglCompressedTextureSubImage2D = (void *)SDL_GL_GetProcAddress("glCompressedTextureSubImage2DEXT");
qglGenerateTextureMipmap = (void *)SDL_GL_GetProcAddress("glGenerateTextureMipmapEXT");
}
ri.Printf(PRINT_ALL, result[glRefConfig.directStateAccess ? 1 : 0], extension);
}
else
{
ri.Printf(PRINT_ALL, result[2], extension);
}
}