diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/drivers/dri/common/stenciltmp.h')
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/drivers/dri/common/stenciltmp.h | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/common/stenciltmp.h b/nx-X11/extras/Mesa/src/mesa/drivers/dri/common/stenciltmp.h new file mode 100644 index 000000000..dccab0660 --- /dev/null +++ b/nx-X11/extras/Mesa/src/mesa/drivers/dri/common/stenciltmp.h @@ -0,0 +1,182 @@ +/* $XFree86: xc/lib/GL/mesa/src/drv/common/stenciltmp.h,v 1.3 2001/03/21 16:14:20 dawes Exp $ */ + +#include "spantmp_common.h" + +#ifndef DBG +#define DBG 0 +#endif + +static void TAG(WriteStencilSpan)( GLcontext *ctx, + struct gl_renderbuffer *rb, + GLuint n, GLint x, GLint y, + const void *values, const GLubyte mask[] ) +{ + HW_WRITE_LOCK() + { + const GLubyte *stencil = (const GLubyte *) values; + GLint x1; + GLint n1; + LOCAL_STENCIL_VARS; + + y = Y_FLIP(y); + + HW_CLIPLOOP() + { + GLint i = 0; + CLIPSPAN(x,y,n,x1,n1,i); + + if (DBG) fprintf(stderr, "WriteStencilSpan %d..%d (x1 %d)\n", + (int)i, (int)n1, (int)x1); + + if (mask) + { + for (;n1>0;i++,x1++,n1--) + if (mask[i]) + WRITE_STENCIL( x1, y, stencil[i] ); + } + else + { + for (;n1>0;i++,x1++,n1--) + WRITE_STENCIL( x1, y, stencil[i] ); + } + } + HW_ENDCLIPLOOP(); + } + HW_WRITE_UNLOCK(); +} + + +static void TAG(WriteMonoStencilSpan)( GLcontext *ctx, + struct gl_renderbuffer *rb, + GLuint n, GLint x, GLint y, + const void *value, + const GLubyte mask[] ) +{ + HW_WRITE_LOCK() + { + const GLubyte stencil = *((const GLubyte *) value); + GLint x1; + GLint n1; + LOCAL_STENCIL_VARS; + + y = Y_FLIP(y); + + HW_CLIPLOOP() + { + GLint i = 0; + CLIPSPAN(x,y,n,x1,n1,i); + + if (DBG) fprintf(stderr, "WriteStencilSpan %d..%d (x1 %d)\n", + (int)i, (int)n1, (int)x1); + + if (mask) + { + for (;n1>0;i++,x1++,n1--) + if (mask[i]) + WRITE_STENCIL( x1, y, stencil ); + } + else + { + for (;n1>0;i++,x1++,n1--) + WRITE_STENCIL( x1, y, stencil ); + } + } + HW_ENDCLIPLOOP(); + } + HW_WRITE_UNLOCK(); +} + + + +static void TAG(WriteStencilPixels)( GLcontext *ctx, + struct gl_renderbuffer *rb, + GLuint n, + const GLint x[], const GLint y[], + const void *values, const GLubyte mask[] ) +{ + HW_WRITE_LOCK() + { + const GLubyte *stencil = (const GLubyte *) values; + GLuint i; + LOCAL_STENCIL_VARS; + + if (DBG) fprintf(stderr, "WriteStencilPixels\n"); + + HW_CLIPLOOP() + { + for (i=0;i<n;i++) + { + if (mask[i]) { + const int fy = Y_FLIP(y[i]); + if (CLIPPIXEL(x[i],fy)) + WRITE_STENCIL( x[i], fy, stencil[i] ); + } + } + } + HW_ENDCLIPLOOP(); + } + HW_WRITE_UNLOCK(); +} + + +/* Read stencil spans and pixels + */ +static void TAG(ReadStencilSpan)( GLcontext *ctx, + struct gl_renderbuffer *rb, + GLuint n, GLint x, GLint y, + void *values) +{ + HW_READ_LOCK() + { + GLubyte *stencil = (GLubyte *) values; + GLint x1,n1; + LOCAL_STENCIL_VARS; + + y = Y_FLIP(y); + + if (DBG) fprintf(stderr, "ReadStencilSpan\n"); + + HW_CLIPLOOP() + { + GLint i = 0; + CLIPSPAN(x,y,n,x1,n1,i); + for (;n1>0;i++,n1--) + READ_STENCIL( stencil[i], (x+i), y ); + } + HW_ENDCLIPLOOP(); + } + HW_READ_UNLOCK(); +} + +static void TAG(ReadStencilPixels)( GLcontext *ctx, + struct gl_renderbuffer *rb, + GLuint n, const GLint x[], const GLint y[], + void *values ) +{ + HW_READ_LOCK() + { + GLubyte *stencil = (GLubyte *) values; + GLuint i; + LOCAL_STENCIL_VARS; + + if (DBG) fprintf(stderr, "ReadStencilPixels\n"); + + HW_CLIPLOOP() + { + for (i=0;i<n;i++) { + int fy = Y_FLIP( y[i] ); + if (CLIPPIXEL( x[i], fy )) + READ_STENCIL( stencil[i], x[i], fy ); + } + } + HW_ENDCLIPLOOP(); + } + HW_READ_UNLOCK(); +} + + + + +#undef WRITE_STENCIL +#undef READ_STENCIL +#undef TAG |