mirror of https://github.com/FWGS/xash3d-fwgs
ref_soft: glblit: gles3 pbo+fbo blitter
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2493659b23
commit
f376d5d59c
110
r_glblit.c
110
r_glblit.c
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@ -61,10 +61,10 @@ void GAME_EXPORT GL_SetupAttributes( int safegl )
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gEngfuncs.GL_SetAttribute( REF_GL_CONTEXT_FLAGS, REF_GL_CONTEXT_DEBUG_FLAG );
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#endif
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// untill we have any blitter in ref api, setup GL
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gEngfuncs.GL_SetAttribute( REF_GL_CONTEXT_PROFILE_MASK, REF_GL_CONTEXT_PROFILE_ES);
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gEngfuncs.GL_SetAttribute( REF_GL_CONTEXT_PROFILE_MASK, REF_GL_CONTEXT_PROFILE_ES );
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gEngfuncs.GL_SetAttribute( REF_GL_CONTEXT_EGL, 1 );
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gEngfuncs.GL_SetAttribute( REF_GL_CONTEXT_MAJOR_VERSION, 1 );
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gEngfuncs.GL_SetAttribute( REF_GL_CONTEXT_MINOR_VERSION, 1 );
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gEngfuncs.GL_SetAttribute( REF_GL_CONTEXT_MAJOR_VERSION, 3 );
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gEngfuncs.GL_SetAttribute( REF_GL_CONTEXT_MINOR_VERSION, 0 );
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gEngfuncs.GL_SetAttribute( REF_GL_DOUBLEBUFFER, 1 );
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gEngfuncs.GL_SetAttribute( REF_GL_RED_SIZE, 5 );
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@ -78,6 +78,13 @@ void GL_FUNCTION( glBindBuffer)(GLenum target, GLuint buffer);
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void GL_FUNCTION( glBufferData )(GLenum target, GLsizeiptrARB size, const GLvoid *data, GLenum usage);
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void GL_FUNCTION( glGenBuffers )(GLsizei n, GLuint *buffers);
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void GL_FUNCTION( glDeleteBuffers )(GLsizei n, const GLuint *buffers);
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GLvoid* GL_FUNCTION( glMapBuffer )(GLenum target, GLenum access);
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GLboolean GL_FUNCTION( glUnmapBuffer )(GLenum target);
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#define GL_PIXEL_UNPACK_BUFFER 0x88EC
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#define GL_FRAMEBUFFER 0x8D40
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#define GL_COLOR_ATTACHMENT0 0x8CE0
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#define GL_READ_FRAMEBUFFER 0x8CA8
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#define GL_DRAW_FRAMEBUFFER 0x8CA9
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void GAME_EXPORT GL_InitExtensions( void )
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{
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LOAD(glBegin);
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@ -112,6 +119,13 @@ void GAME_EXPORT GL_InitExtensions( void )
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LOAD(glBufferData);
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LOAD(glGenBuffers);
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LOAD(glDeleteBuffers);
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LOAD(glMapBuffer);
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LOAD(glUnmapBuffer);
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LOAD(glGenFramebuffers);
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LOAD(glBindFramebuffer);
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LOAD(glFramebufferTexture2D);
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LOAD(glBlitFramebuffer);
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LOAD(glGenTextures);
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gEngfuncs.Con_Printf("version:%s\n",pglGetString(GL_VERSION));
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#if GLDEBUG
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if( gpGlobals->developer )
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@ -248,6 +262,90 @@ static qboolean R_CreateBuffer_GLES1( int width, int height, uint *stride, uint
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return true;
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}
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static void *R_Lock_GLES3( void )
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{
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pglBufferData( GL_PIXEL_UNPACK_BUFFER, vid.width * vid.height * 2, 0, GL_STREAM_DRAW_ARB );
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return pglMapBuffer( GL_PIXEL_UNPACK_BUFFER, GL_WRITE_ONLY_ARB );
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}
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static void R_Unlock_GLES3( void )
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{
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gEngfuncs.GL_SwapBuffers();
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pglUnmapBuffer( GL_PIXEL_UNPACK_BUFFER );
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pglTexImage2D( GL_TEXTURE_2D, 0, GL_RGB, vid.width, vid.height, 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, 0 );
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//pglDrawArrays( GL_TRIANGLE_FAN, 0,4 );
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pglBlitFramebuffer( 0, vid.height, vid.width, 0, 0, 0, vid.width, vid.height, GL_COLOR_BUFFER_BIT, GL_NEAREST );
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}
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static qboolean R_CreateBuffer_GLES3( int width, int height, uint *stride, uint *bpp, uint *r, uint *g, uint *b )
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{
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float data[] = {
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// quad verts match texcoords
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0, 0,
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1, 0,
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1, 1,
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0, 1,
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};
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int vbo, pbo, fbo, to;
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// shitty fbo does not work without texture objects :(
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pglGenTextures( 1, &to );
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pglBindTexture( GL_TEXTURE_2D, to );
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pglViewport( 0, 0, width, height );
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/*pglMatrixMode( GL_PROJECTION );
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pglLoadIdentity();
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// project 0..1 to screen size
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pglOrtho( 0, 1, 1, 0, -99999, 99999 );
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pglMatrixMode( GL_MODELVIEW );
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pglLoadIdentity();
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pglEnable( GL_TEXTURE_2D );
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pglTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
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pglTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
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if( vbo )
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pglDeleteBuffers( 1,&vbo );
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*/
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if( pbo )
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pglDeleteBuffers( 1,&pbo );
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//pglGenBuffers( 1,&vbo );
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pglGenBuffers( 1, &pbo );
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//pglBindBuffer( GL_ARRAY_BUFFER_ARB, vbo );
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//pglBufferData( GL_ARRAY_BUFFER_ARB, sizeof(data), data, GL_STATIC_DRAW_ARB );
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//pglEnableClientState( GL_VERTEX_ARRAY );
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//pglEnableClientState( GL_TEXTURE_COORD_ARRAY );
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//pglVertexPointer( 2, GL_FLOAT, 8, 0 );
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//pglTexCoordPointer( 2, GL_FLOAT, 8, 0 );
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//pglBindBuffer( GL_ARRAY_BUFFER_ARB, 0 );
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pglBindBuffer( GL_PIXEL_UNPACK_BUFFER, pbo );
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pglBufferData( GL_PIXEL_UNPACK_BUFFER, width * height * 2, 0, GL_STREAM_DRAW_ARB );
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pglTexImage2D( GL_TEXTURE_2D, 0, GL_RGB, width, height, 0, GL_RGB, GL_UNSIGNED_SHORT_5_6_5, 0 );
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pglGenFramebuffers(1, &fbo);
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pglBindFramebuffer(GL_READ_FRAMEBUFFER, fbo);
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pglFramebufferTexture2D(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, to, 0);
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pglBindFramebuffer(GL_DRAW_FRAMEBUFFER, 0);
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//pglColor4f( 1, 1, 1, 1 );
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*stride = width;
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*bpp = 2;
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*r = MASK(5) << 6 + 5;
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*g = MASK(6) << 5;
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*b = MASK(5);
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return true;
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}
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static int FIRST_BIT( uint mask )
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@ -467,9 +565,9 @@ void R_InitBlit( qboolean glblit )
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if( glblit )
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{
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swblit.pLockBuffer = R_Lock_GL1;
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swblit.pUnlockBuffer = R_Unlock_GLES1;
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swblit.pCreateBuffer = R_CreateBuffer_GLES1;
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swblit.pLockBuffer = R_Lock_GLES3;
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swblit.pUnlockBuffer = R_Unlock_GLES3;
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swblit.pCreateBuffer = R_CreateBuffer_GLES3;
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}
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else
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{
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