| /* |
| * Copyright 2000-2001 VA Linux Systems, Inc. |
| * (C) Copyright IBM Corporation 2004 |
| * All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * on the rights to use, copy, modify, merge, publish, distribute, sub |
| * license, and/or sell copies of the Software, and to permit persons to whom |
| * the Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL |
| * VA LINUX SYSTEM, IBM AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, |
| * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
| * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
| * USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| /** |
| * \file spantmp2.h |
| * |
| * Template file of span read / write functions. |
| * |
| * \author Keith Whitwell <keithw@tungstengraphics.com> |
| * \author Gareth Hughes <gareth@nvidia.com> |
| * \author Ian Romanick <idr@us.ibm.com> |
| */ |
| |
| #include "colormac.h" |
| #include "spantmp_common.h" |
| |
| #ifndef DBG |
| #define DBG 0 |
| #endif |
| |
| #ifndef HW_READ_CLIPLOOP |
| #define HW_READ_CLIPLOOP() HW_CLIPLOOP() |
| #endif |
| |
| #ifndef HW_WRITE_CLIPLOOP |
| #define HW_WRITE_CLIPLOOP() HW_CLIPLOOP() |
| #endif |
| |
| |
| #if (SPANTMP_PIXEL_FMT == GL_RGB) && (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_SHORT_5_6_5) |
| |
| /** |
| ** GL_RGB, GL_UNSIGNED_SHORT_5_6_5 |
| **/ |
| |
| #ifndef GET_PTR |
| #define GET_PTR(_x, _y) (buf + (_x) * 2 + (_y) * pitch) |
| #endif |
| |
| #define INIT_MONO_PIXEL(p, color) \ |
| p = PACK_COLOR_565( color[0], color[1], color[2] ) |
| |
| #define WRITE_RGBA( _x, _y, r, g, b, a ) \ |
| do { \ |
| GLshort * _p = (GLshort *) GET_PTR(_x, _y); \ |
| _p[0] = ((((int)r & 0xf8) << 8) | (((int)g & 0xfc) << 3) | \ |
| (((int)b & 0xf8) >> 3)); \ |
| } while(0) |
| |
| #define WRITE_PIXEL( _x, _y, p ) \ |
| do { \ |
| GLushort * _p = (GLushort *) GET_PTR(_x, _y); \ |
| _p[0] = p; \ |
| } while(0) |
| |
| #define READ_RGBA( rgba, _x, _y ) \ |
| do { \ |
| GLushort p = *(volatile GLshort *) GET_PTR(_x, _y); \ |
| rgba[0] = ((p >> 8) & 0xf8) * 255 / 0xf8; \ |
| rgba[1] = ((p >> 3) & 0xfc) * 255 / 0xfc; \ |
| rgba[2] = ((p << 3) & 0xf8) * 255 / 0xf8; \ |
| rgba[3] = 0xff; \ |
| } while (0) |
| |
| #elif (SPANTMP_PIXEL_FMT == GL_BGRA) && (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_INT_8_8_8_8_REV) |
| |
| /** |
| ** GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV |
| **/ |
| |
| #ifndef GET_PTR |
| #define GET_PTR(_x, _y) ( buf + (_x) * 4 + (_y) * pitch) |
| #endif |
| |
| # define INIT_MONO_PIXEL(p, color) \ |
| p = PACK_COLOR_8888(color[3], color[0], color[1], color[2]) |
| |
| # define WRITE_RGBA(_x, _y, r, g, b, a) \ |
| do { \ |
| GLuint * _p = (GLuint *) GET_PTR(_x, _y); \ |
| _p[0] = ((r << 16) | (g << 8) | (b << 0) | (a << 24)); \ |
| } while(0) |
| |
| #define WRITE_PIXEL(_x, _y, p) \ |
| do { \ |
| GLuint * _p = (GLuint *) GET_PTR(_x, _y); \ |
| _p[0] = p; \ |
| } while(0) |
| |
| # if defined( USE_X86_ASM ) |
| # define READ_RGBA(rgba, _x, _y) \ |
| do { \ |
| GLuint p = *(volatile GLuint *) GET_PTR(_x, _y); \ |
| __asm__ __volatile__( "bswap %0; rorl $8, %0" \ |
| : "=r" (p) : "0" (p) ); \ |
| ((GLuint *)rgba)[0] = p; \ |
| } while (0) |
| # elif defined( MESA_BIG_ENDIAN ) |
| /* On PowerPC with GCC 3.4.2 the shift madness below becomes a single |
| * rotlwi instruction. It also produces good code on SPARC. |
| */ |
| # define READ_RGBA( rgba, _x, _y ) \ |
| do { \ |
| GLuint p = *(volatile GLuint *) GET_PTR(_x, _y); \ |
| GLuint t = p; \ |
| *((uint32_t *) rgba) = (t >> 24) | (p << 8); \ |
| } while (0) |
| # else |
| # define READ_RGBA( rgba, _x, _y ) \ |
| do { \ |
| GLuint p = *(volatile GLuint *) GET_PTR(_x, _y); \ |
| rgba[0] = (p >> 16) & 0xff; \ |
| rgba[1] = (p >> 8) & 0xff; \ |
| rgba[2] = (p >> 0) & 0xff; \ |
| rgba[3] = (p >> 24) & 0xff; \ |
| } while (0) |
| # endif |
| |
| #else |
| #error SPANTMP_PIXEL_FMT must be set to a valid value! |
| #endif |
| |
| |
| |
| /** |
| ** Assembly routines. |
| **/ |
| |
| #if defined( USE_MMX_ASM ) || defined( USE_SSE_ASM ) |
| #include "x86/read_rgba_span_x86.h" |
| #include "x86/common_x86_asm.h" |
| #endif |
| |
| static void TAG(WriteRGBASpan)( GLcontext *ctx, |
| struct gl_renderbuffer *rb, |
| GLuint n, GLint x, GLint y, |
| const void *values, const GLubyte mask[] ) |
| { |
| HW_WRITE_LOCK() |
| { |
| const GLubyte (*rgba)[4] = (const GLubyte (*)[4]) values; |
| GLint x1; |
| GLint n1; |
| LOCAL_VARS; |
| |
| y = Y_FLIP(y); |
| |
| HW_WRITE_CLIPLOOP() |
| { |
| GLint i = 0; |
| CLIPSPAN(x,y,n,x1,n1,i); |
| |
| if (DBG) fprintf(stderr, "WriteRGBASpan %d..%d (x1 %d)\n", |
| (int)i, (int)n1, (int)x1); |
| |
| if (mask) |
| { |
| for (;n1>0;i++,x1++,n1--) |
| if (mask[i]) |
| WRITE_RGBA( x1, y, |
| rgba[i][0], rgba[i][1], |
| rgba[i][2], rgba[i][3] ); |
| } |
| else |
| { |
| for (;n1>0;i++,x1++,n1--) |
| WRITE_RGBA( x1, y, |
| rgba[i][0], rgba[i][1], |
| rgba[i][2], rgba[i][3] ); |
| } |
| } |
| HW_ENDCLIPLOOP(); |
| } |
| HW_WRITE_UNLOCK(); |
| } |
| |
| static void TAG(WriteRGBSpan)( GLcontext *ctx, |
| struct gl_renderbuffer *rb, |
| GLuint n, GLint x, GLint y, |
| const void *values, const GLubyte mask[] ) |
| { |
| HW_WRITE_LOCK() |
| { |
| const GLubyte (*rgb)[3] = (const GLubyte (*)[3]) values; |
| GLint x1; |
| GLint n1; |
| LOCAL_VARS; |
| |
| y = Y_FLIP(y); |
| |
| HW_WRITE_CLIPLOOP() |
| { |
| GLint i = 0; |
| CLIPSPAN(x,y,n,x1,n1,i); |
| |
| if (DBG) fprintf(stderr, "WriteRGBSpan %d..%d (x1 %d)\n", |
| (int)i, (int)n1, (int)x1); |
| |
| if (mask) |
| { |
| for (;n1>0;i++,x1++,n1--) |
| if (mask[i]) |
| WRITE_RGBA( x1, y, rgb[i][0], rgb[i][1], rgb[i][2], 255 ); |
| } |
| else |
| { |
| for (;n1>0;i++,x1++,n1--) |
| WRITE_RGBA( x1, y, rgb[i][0], rgb[i][1], rgb[i][2], 255 ); |
| } |
| } |
| HW_ENDCLIPLOOP(); |
| } |
| HW_WRITE_UNLOCK(); |
| } |
| |
| static void TAG(WriteRGBAPixels)( 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 (*rgba)[4] = (const GLubyte (*)[4]) values; |
| GLint i; |
| LOCAL_VARS; |
| |
| if (DBG) fprintf(stderr, "WriteRGBAPixels\n"); |
| |
| HW_WRITE_CLIPLOOP() |
| { |
| if (mask) |
| { |
| for (i=0;i<n;i++) |
| { |
| if (mask[i]) { |
| const int fy = Y_FLIP(y[i]); |
| if (CLIPPIXEL(x[i],fy)) |
| WRITE_RGBA( x[i], fy, |
| rgba[i][0], rgba[i][1], |
| rgba[i][2], rgba[i][3] ); |
| } |
| } |
| } |
| else |
| { |
| for (i=0;i<n;i++) |
| { |
| const int fy = Y_FLIP(y[i]); |
| if (CLIPPIXEL(x[i],fy)) |
| WRITE_RGBA( x[i], fy, |
| rgba[i][0], rgba[i][1], |
| rgba[i][2], rgba[i][3] ); |
| } |
| } |
| } |
| HW_ENDCLIPLOOP(); |
| } |
| HW_WRITE_UNLOCK(); |
| } |
| |
| |
| static void TAG(WriteMonoRGBASpan)( GLcontext *ctx, |
| struct gl_renderbuffer *rb, |
| GLuint n, GLint x, GLint y, |
| const void *value, const GLubyte mask[] ) |
| { |
| HW_WRITE_LOCK() |
| { |
| const GLubyte *color = (const GLubyte *) value; |
| GLint x1; |
| GLint n1; |
| LOCAL_VARS; |
| INIT_MONO_PIXEL(p, color); |
| |
| y = Y_FLIP( y ); |
| |
| if (DBG) fprintf(stderr, "WriteMonoRGBASpan\n"); |
| |
| HW_WRITE_CLIPLOOP() |
| { |
| GLint i = 0; |
| CLIPSPAN(x,y,n,x1,n1,i); |
| if (mask) |
| { |
| for (;n1>0;i++,x1++,n1--) |
| if (mask[i]) |
| WRITE_PIXEL( x1, y, p ); |
| } |
| else |
| { |
| for (;n1>0;i++,x1++,n1--) |
| WRITE_PIXEL( x1, y, p ); |
| } |
| } |
| HW_ENDCLIPLOOP(); |
| } |
| HW_WRITE_UNLOCK(); |
| } |
| |
| |
| static void TAG(WriteMonoRGBAPixels)( GLcontext *ctx, |
| struct gl_renderbuffer *rb, |
| GLuint n, |
| const GLint x[], const GLint y[], |
| const void *value, |
| const GLubyte mask[] ) |
| { |
| HW_WRITE_LOCK() |
| { |
| const GLubyte *color = (const GLubyte *) value; |
| GLint i; |
| LOCAL_VARS; |
| INIT_MONO_PIXEL(p, color); |
| |
| if (DBG) fprintf(stderr, "WriteMonoRGBAPixels\n"); |
| |
| HW_WRITE_CLIPLOOP() |
| { |
| if (mask) |
| { |
| for (i=0;i<n;i++) |
| if (mask[i]) { |
| int fy = Y_FLIP(y[i]); |
| if (CLIPPIXEL( x[i], fy )) |
| WRITE_PIXEL( x[i], fy, p ); |
| } |
| } |
| else |
| { |
| for (i=0;i<n;i++) { |
| int fy = Y_FLIP(y[i]); |
| if (CLIPPIXEL( x[i], fy )) |
| WRITE_PIXEL( x[i], fy, p ); |
| } |
| } |
| } |
| HW_ENDCLIPLOOP(); |
| } |
| HW_WRITE_UNLOCK(); |
| } |
| |
| |
| static void TAG(ReadRGBASpan)( GLcontext *ctx, |
| struct gl_renderbuffer *rb, |
| GLuint n, GLint x, GLint y, void *values) |
| { |
| HW_READ_LOCK() |
| { |
| GLubyte (*rgba)[4] = (GLubyte (*)[4]) values; |
| GLint x1,n1; |
| LOCAL_VARS; |
| |
| y = Y_FLIP(y); |
| |
| if (DBG) fprintf(stderr, "ReadRGBASpan\n"); |
| |
| HW_READ_CLIPLOOP() |
| { |
| GLint i = 0; |
| CLIPSPAN(x,y,n,x1,n1,i); |
| for (;n1>0;i++,x1++,n1--) |
| READ_RGBA( rgba[i], x1, y ); |
| } |
| HW_ENDCLIPLOOP(); |
| } |
| HW_READ_UNLOCK(); |
| } |
| |
| |
| #if defined(USE_MMX_ASM) && \ |
| (((SPANTMP_PIXEL_FMT == GL_BGRA) && \ |
| (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_INT_8_8_8_8_REV)) || \ |
| ((SPANTMP_PIXEL_FMT == GL_RGB) && \ |
| (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_SHORT_5_6_5))) |
| static void TAG2(ReadRGBASpan,_MMX)( GLcontext *ctx, |
| struct gl_renderbuffer *rb, |
| GLuint n, GLint x, GLint y, void *values) |
| { |
| #ifndef USE_INNER_EMMS |
| /* The EMMS instruction is directly in-lined here because using GCC's |
| * built-in _mm_empty function was found to utterly destroy performance. |
| */ |
| __asm__ __volatile__( "emms" ); |
| #endif |
| |
| HW_READ_LOCK() |
| { |
| GLubyte (*rgba)[4] = (GLubyte (*)[4]) values; |
| GLint x1,n1; |
| LOCAL_VARS; |
| |
| y = Y_FLIP(y); |
| |
| if (DBG) fprintf(stderr, "ReadRGBASpan\n"); |
| |
| HW_READ_CLIPLOOP() |
| { |
| GLint i = 0; |
| CLIPSPAN(x,y,n,x1,n1,i); |
| |
| { |
| const void * src = GET_PTR( x1, y ); |
| #if (SPANTMP_PIXEL_FMT == GL_RGB) && \ |
| (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_SHORT_5_6_5) |
| _generic_read_RGBA_span_RGB565_MMX( src, rgba[i], n1 ); |
| #else |
| _generic_read_RGBA_span_BGRA8888_REV_MMX( src, rgba[i], n1 ); |
| #endif |
| } |
| } |
| HW_ENDCLIPLOOP(); |
| } |
| HW_READ_UNLOCK(); |
| #ifndef USE_INNER_EMMS |
| __asm__ __volatile__( "emms" ); |
| #endif |
| } |
| #endif |
| |
| |
| #if defined(USE_SSE_ASM) && \ |
| (SPANTMP_PIXEL_FMT == GL_BGRA) && \ |
| (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_INT_8_8_8_8_REV) |
| static void TAG2(ReadRGBASpan,_SSE2)( GLcontext *ctx, |
| struct gl_renderbuffer *rb, |
| GLuint n, GLint x, GLint y, |
| void *values) |
| { |
| HW_READ_LOCK() |
| { |
| GLubyte (*rgba)[4] = (GLubyte (*)[4]) values; |
| GLint x1,n1; |
| LOCAL_VARS; |
| |
| y = Y_FLIP(y); |
| |
| if (DBG) fprintf(stderr, "ReadRGBASpan\n"); |
| |
| HW_READ_CLIPLOOP() |
| { |
| GLint i = 0; |
| CLIPSPAN(x,y,n,x1,n1,i); |
| |
| { |
| const void * src = GET_PTR( x1, y ); |
| _generic_read_RGBA_span_BGRA8888_REV_SSE2( src, rgba[i], n1 ); |
| } |
| } |
| HW_ENDCLIPLOOP(); |
| } |
| HW_READ_UNLOCK(); |
| } |
| #endif |
| |
| #if defined(USE_SSE_ASM) && \ |
| (SPANTMP_PIXEL_FMT == GL_BGRA) && \ |
| (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_INT_8_8_8_8_REV) |
| static void TAG2(ReadRGBASpan,_SSE)( GLcontext *ctx, |
| struct gl_renderbuffer *rb, |
| GLuint n, GLint x, GLint y, |
| void *values) |
| { |
| #ifndef USE_INNER_EMMS |
| /* The EMMS instruction is directly in-lined here because using GCC's |
| * built-in _mm_empty function was found to utterly destroy performance. |
| */ |
| __asm__ __volatile__( "emms" ); |
| #endif |
| |
| HW_READ_LOCK() |
| { |
| GLubyte (*rgba)[4] = (GLubyte (*)[4]) values; |
| GLint x1,n1; |
| LOCAL_VARS; |
| |
| y = Y_FLIP(y); |
| |
| if (DBG) fprintf(stderr, "ReadRGBASpan\n"); |
| |
| HW_READ_CLIPLOOP() |
| { |
| GLint i = 0; |
| CLIPSPAN(x,y,n,x1,n1,i); |
| |
| { |
| const void * src = GET_PTR( x1, y ); |
| _generic_read_RGBA_span_BGRA8888_REV_SSE( src, rgba[i], n1 ); |
| } |
| } |
| HW_ENDCLIPLOOP(); |
| } |
| HW_READ_UNLOCK(); |
| #ifndef USE_INNER_EMMS |
| __asm__ __volatile__( "emms" ); |
| #endif |
| } |
| #endif |
| |
| |
| static void TAG(ReadRGBAPixels)( GLcontext *ctx, |
| struct gl_renderbuffer *rb, |
| GLuint n, const GLint x[], const GLint y[], |
| void *values ) |
| { |
| HW_READ_LOCK() |
| { |
| GLubyte (*rgba)[4] = (GLubyte (*)[4]) values; |
| GLubyte *mask = NULL; /* remove someday */ |
| GLint i; |
| LOCAL_VARS; |
| |
| if (DBG) fprintf(stderr, "ReadRGBAPixels\n"); |
| |
| HW_READ_CLIPLOOP() |
| { |
| if (mask) |
| { |
| for (i=0;i<n;i++) |
| if (mask[i]) { |
| int fy = Y_FLIP( y[i] ); |
| if (CLIPPIXEL( x[i], fy )) |
| READ_RGBA( rgba[i], x[i], fy ); |
| } |
| } |
| else |
| { |
| for (i=0;i<n;i++) { |
| int fy = Y_FLIP( y[i] ); |
| if (CLIPPIXEL( x[i], fy )) |
| READ_RGBA( rgba[i], x[i], fy ); |
| } |
| } |
| } |
| HW_ENDCLIPLOOP(); |
| } |
| HW_READ_UNLOCK(); |
| } |
| |
| static void TAG(InitPointers)(struct gl_renderbuffer *rb) |
| { |
| rb->PutRow = TAG(WriteRGBASpan); |
| rb->PutRowRGB = TAG(WriteRGBSpan); |
| rb->PutMonoRow = TAG(WriteMonoRGBASpan); |
| rb->PutValues = TAG(WriteRGBAPixels); |
| rb->PutMonoValues = TAG(WriteMonoRGBAPixels); |
| rb->GetValues = TAG(ReadRGBAPixels); |
| |
| #if defined(USE_SSE_ASM) && \ |
| (SPANTMP_PIXEL_FMT == GL_BGRA) && \ |
| (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_INT_8_8_8_8_REV) |
| if ( cpu_has_xmm2 ) { |
| if (DBG) fprintf( stderr, "Using %s version of GetRow\n", "SSE2" ); |
| rb->GetRow = TAG2(ReadRGBASpan, _SSE2); |
| } |
| else |
| #endif |
| #if defined(USE_SSE_ASM) && \ |
| (SPANTMP_PIXEL_FMT == GL_BGRA) && \ |
| (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_INT_8_8_8_8_REV) |
| if ( cpu_has_xmm ) { |
| if (DBG) fprintf( stderr, "Using %s version of GetRow\n", "SSE" ); |
| rb->GetRow = TAG2(ReadRGBASpan, _SSE); |
| } |
| else |
| #endif |
| #if defined(USE_MMX_ASM) && \ |
| (((SPANTMP_PIXEL_FMT == GL_BGRA) && \ |
| (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_INT_8_8_8_8_REV)) || \ |
| ((SPANTMP_PIXEL_FMT == GL_RGB) && \ |
| (SPANTMP_PIXEL_TYPE == GL_UNSIGNED_SHORT_5_6_5))) |
| if ( cpu_has_mmx ) { |
| if (DBG) fprintf( stderr, "Using %s version of GetRow\n", "MMX" ); |
| rb->GetRow = TAG2(ReadRGBASpan, _MMX); |
| } |
| else |
| #endif |
| { |
| if (DBG) fprintf( stderr, "Using %s version of GetRow\n", "C" ); |
| rb->GetRow = TAG(ReadRGBASpan); |
| } |
| |
| } |
| |
| |
| #undef INIT_MONO_PIXEL |
| #undef WRITE_PIXEL |
| #undef WRITE_RGBA |
| #undef READ_RGBA |
| #undef TAG |
| #undef TAG2 |
| #undef GET_PTR |
| #undef SPANTMP_PIXEL_FMT |
| #undef SPANTMP_PIXEL_TYPE |
