diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/mesa/main/pixel.c | 453 |
1 files changed, 371 insertions, 82 deletions
diff --git a/src/mesa/main/pixel.c b/src/mesa/main/pixel.c index 932dfce61c..3d36c66e5b 100644 --- a/src/mesa/main/pixel.c +++ b/src/mesa/main/pixel.c @@ -1,6 +1,6 @@ /* * Mesa 3-D graphics library - * Version: 6.1 + * Version: 6.3 * * Copyright (C) 1999-2004 Brian Paul All Rights Reserved. * @@ -23,10 +23,10 @@ */ #include "glheader.h" -#include "imports.h" -#include "image.h" +#include "bufferobj.h" #include "colormac.h" #include "context.h" +#include "image.h" #include "macros.h" #include "pixel.h" #include "mtypes.h" @@ -253,45 +253,29 @@ _mesa_PixelStoref( GLenum pname, GLfloat param ) /**********************************************************************/ - -void GLAPIENTRY -_mesa_PixelMapfv( GLenum map, GLsizei mapsize, const GLfloat *values ) +/** + * Helper routine used by the other _mesa_PixelMap() functions. + */ +static void +pixelmap(GLcontext *ctx, GLenum map, GLsizei mapsize, const GLfloat *values) { GLint i; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (mapsize < 1 || mapsize > MAX_PIXEL_MAP_TABLE) { - _mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapfv(mapsize)" ); - return; - } - - if (map >= GL_PIXEL_MAP_S_TO_S && map <= GL_PIXEL_MAP_I_TO_A) { - /* test that mapsize is a power of two */ - if (_mesa_bitcount((GLuint) mapsize) != 1) { - _mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapfv(mapsize)" ); - return; - } - } - - FLUSH_VERTICES(ctx, _NEW_PIXEL); - switch (map) { case GL_PIXEL_MAP_S_TO_S: ctx->Pixel.MapStoSsize = mapsize; - for (i=0;i<mapsize;i++) { + for (i = 0; i < mapsize; i++) { ctx->Pixel.MapStoS[i] = (GLint) values[i]; } break; case GL_PIXEL_MAP_I_TO_I: ctx->Pixel.MapItoIsize = mapsize; - for (i=0;i<mapsize;i++) { + for (i = 0; i < mapsize; i++) { ctx->Pixel.MapItoI[i] = (GLint) values[i]; } break; case GL_PIXEL_MAP_I_TO_R: ctx->Pixel.MapItoRsize = mapsize; - for (i=0;i<mapsize;i++) { + for (i = 0; i < mapsize; i++) { GLfloat val = CLAMP( values[i], 0.0F, 1.0F ); ctx->Pixel.MapItoR[i] = val; ctx->Pixel.MapItoR8[i] = (GLint) (val * 255.0F); @@ -299,7 +283,7 @@ _mesa_PixelMapfv( GLenum map, GLsizei mapsize, const GLfloat *values ) break; case GL_PIXEL_MAP_I_TO_G: ctx->Pixel.MapItoGsize = mapsize; - for (i=0;i<mapsize;i++) { + for (i = 0; i < mapsize; i++) { GLfloat val = CLAMP( values[i], 0.0F, 1.0F ); ctx->Pixel.MapItoG[i] = val; ctx->Pixel.MapItoG8[i] = (GLint) (val * 255.0F); @@ -307,7 +291,7 @@ _mesa_PixelMapfv( GLenum map, GLsizei mapsize, const GLfloat *values ) break; case GL_PIXEL_MAP_I_TO_B: ctx->Pixel.MapItoBsize = mapsize; - for (i=0;i<mapsize;i++) { + for (i = 0; i < mapsize; i++) { GLfloat val = CLAMP( values[i], 0.0F, 1.0F ); ctx->Pixel.MapItoB[i] = val; ctx->Pixel.MapItoB8[i] = (GLint) (val * 255.0F); @@ -315,7 +299,7 @@ _mesa_PixelMapfv( GLenum map, GLsizei mapsize, const GLfloat *values ) break; case GL_PIXEL_MAP_I_TO_A: ctx->Pixel.MapItoAsize = mapsize; - for (i=0;i<mapsize;i++) { + for (i = 0; i < mapsize; i++) { GLfloat val = CLAMP( values[i], 0.0F, 1.0F ); ctx->Pixel.MapItoA[i] = val; ctx->Pixel.MapItoA8[i] = (GLint) (val * 255.0F); @@ -323,30 +307,89 @@ _mesa_PixelMapfv( GLenum map, GLsizei mapsize, const GLfloat *values ) break; case GL_PIXEL_MAP_R_TO_R: ctx->Pixel.MapRtoRsize = mapsize; - for (i=0;i<mapsize;i++) { + for (i = 0; i < mapsize; i++) { ctx->Pixel.MapRtoR[i] = CLAMP( values[i], 0.0F, 1.0F ); } break; case GL_PIXEL_MAP_G_TO_G: ctx->Pixel.MapGtoGsize = mapsize; - for (i=0;i<mapsize;i++) { + for (i = 0; i < mapsize; i++) { ctx->Pixel.MapGtoG[i] = CLAMP( values[i], 0.0F, 1.0F ); } break; case GL_PIXEL_MAP_B_TO_B: ctx->Pixel.MapBtoBsize = mapsize; - for (i=0;i<mapsize;i++) { + for (i = 0; i < mapsize; i++) { ctx->Pixel.MapBtoB[i] = CLAMP( values[i], 0.0F, 1.0F ); } break; case GL_PIXEL_MAP_A_TO_A: ctx->Pixel.MapAtoAsize = mapsize; - for (i=0;i<mapsize;i++) { + for (i = 0; i < mapsize; i++) { ctx->Pixel.MapAtoA[i] = CLAMP( values[i], 0.0F, 1.0F ); } break; default: - _mesa_error( ctx, GL_INVALID_ENUM, "glPixelMapfv(map)" ); + _mesa_error( ctx, GL_INVALID_ENUM, "glPixelMap(map)" ); + } +} + + +void GLAPIENTRY +_mesa_PixelMapfv( GLenum map, GLsizei mapsize, const GLfloat *values ) +{ + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + /* XXX someday, test against ctx->Const.MaxPixelMapTableSize */ + if (mapsize < 1 || mapsize > MAX_PIXEL_MAP_TABLE) { + _mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapfv(mapsize)" ); + return; + } + + if (map >= GL_PIXEL_MAP_S_TO_S && map <= GL_PIXEL_MAP_I_TO_A) { + /* test that mapsize is a power of two */ + if (_mesa_bitcount((GLuint) mapsize) != 1) { + _mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapfv(mapsize)" ); + return; + } + } + + FLUSH_VERTICES(ctx, _NEW_PIXEL); + + if (ctx->Unpack.BufferObj->Name) { + /* unpack pixelmap from PBO */ + GLubyte *buf; + /* Note, need to use DefaultPacking and Unpack's buffer object */ + ctx->DefaultPacking.BufferObj = ctx->Unpack.BufferObj; + if (!_mesa_validate_pbo_access(&ctx->DefaultPacking, mapsize, 1, 1, + GL_INTENSITY, GL_FLOAT, values)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glPixelMapfv(invalid PBO access)"); + return; + } + /* restore */ + ctx->DefaultPacking.BufferObj = ctx->Array.NullBufferObj; + buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT, + GL_READ_ONLY_ARB, + ctx->Unpack.BufferObj); + if (!buf) { + /* buffer is already mapped - that's an error */ + _mesa_error(ctx, GL_INVALID_OPERATION, + "glPixelMapfv(PBO is mapped)"); + return; + } + values = (const GLfloat *) ADD_POINTERS(buf, values); + } + else if (!values) { + return; + } + + pixelmap(ctx, map, mapsize, values); + + if (ctx->Unpack.BufferObj->Name) { + ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT, + ctx->Unpack.BufferObj); } } @@ -355,20 +398,73 @@ _mesa_PixelMapfv( GLenum map, GLsizei mapsize, const GLfloat *values ) void GLAPIENTRY _mesa_PixelMapuiv(GLenum map, GLsizei mapsize, const GLuint *values ) { - const GLint n = MIN2(mapsize, MAX_PIXEL_MAP_TABLE); GLfloat fvalues[MAX_PIXEL_MAP_TABLE]; - GLint i; - if (map==GL_PIXEL_MAP_I_TO_I || map==GL_PIXEL_MAP_S_TO_S) { - for (i=0;i<n;i++) { + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (mapsize < 1 || mapsize > MAX_PIXEL_MAP_TABLE) { + _mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapuiv(mapsize)" ); + return; + } + + if (map >= GL_PIXEL_MAP_S_TO_S && map <= GL_PIXEL_MAP_I_TO_A) { + /* test that mapsize is a power of two */ + if (_mesa_bitcount((GLuint) mapsize) != 1) { + _mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapuiv(mapsize)" ); + return; + } + } + + FLUSH_VERTICES(ctx, _NEW_PIXEL); + + if (ctx->Unpack.BufferObj->Name) { + /* unpack pixelmap from PBO */ + GLubyte *buf; + /* Note, need to use DefaultPacking and Unpack's buffer object */ + ctx->DefaultPacking.BufferObj = ctx->Unpack.BufferObj; + if (!_mesa_validate_pbo_access(&ctx->DefaultPacking, mapsize, 1, 1, + GL_INTENSITY, GL_UNSIGNED_INT, values)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glPixelMapuiv(invalid PBO access)"); + return; + } + /* restore */ + ctx->DefaultPacking.BufferObj = ctx->Array.NullBufferObj; + buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT, + GL_READ_ONLY_ARB, + ctx->Unpack.BufferObj); + if (!buf) { + /* buffer is already mapped - that's an error */ + _mesa_error(ctx, GL_INVALID_OPERATION, + "glPixelMapuiv(PBO is mapped)"); + return; + } + values = (const GLuint *) ADD_POINTERS(buf, values); + } + else if (!values) { + return; + } + + /* convert to floats */ + if (map == GL_PIXEL_MAP_I_TO_I || map == GL_PIXEL_MAP_S_TO_S) { + GLint i; + for (i = 0; i < mapsize; i++) { fvalues[i] = (GLfloat) values[i]; } } else { - for (i=0;i<n;i++) { + GLint i; + for (i = 0; i < mapsize; i++) { fvalues[i] = UINT_TO_FLOAT( values[i] ); } } - _mesa_PixelMapfv(map, mapsize, fvalues); + + if (ctx->Unpack.BufferObj->Name) { + ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT, + ctx->Unpack.BufferObj); + } + + pixelmap(ctx, map, mapsize, fvalues); } @@ -376,69 +472,190 @@ _mesa_PixelMapuiv(GLenum map, GLsizei mapsize, const GLuint *values ) void GLAPIENTRY _mesa_PixelMapusv(GLenum map, GLsizei mapsize, const GLushort *values ) { - const GLint n = MIN2(mapsize, MAX_PIXEL_MAP_TABLE); GLfloat fvalues[MAX_PIXEL_MAP_TABLE]; - GLint i; - if (map==GL_PIXEL_MAP_I_TO_I || map==GL_PIXEL_MAP_S_TO_S) { - for (i=0;i<n;i++) { + GET_CURRENT_CONTEXT(ctx); + ASSERT_OUTSIDE_BEGIN_END(ctx); + + if (mapsize < 1 || mapsize > MAX_PIXEL_MAP_TABLE) { + _mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapusv(mapsize)" ); + return; + } + + if (map >= GL_PIXEL_MAP_S_TO_S && map <= GL_PIXEL_MAP_I_TO_A) { + /* test that mapsize is a power of two */ + if (_mesa_bitcount((GLuint) mapsize) != 1) { + _mesa_error( ctx, GL_INVALID_VALUE, "glPixelMapuiv(mapsize)" ); + return; + } + } + + FLUSH_VERTICES(ctx, _NEW_PIXEL); + + if (ctx->Unpack.BufferObj->Name) { + /* unpack pixelmap from PBO */ + GLubyte *buf; + /* Note, need to use DefaultPacking and Unpack's buffer object */ + ctx->DefaultPacking.BufferObj = ctx->Unpack.BufferObj; + if (!_mesa_validate_pbo_access(&ctx->DefaultPacking, mapsize, 1, 1, + GL_INTENSITY, GL_UNSIGNED_SHORT, + values)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glPixelMapusv(invalid PBO access)"); + return; + } + /* restore */ + ctx->DefaultPacking.BufferObj = ctx->Array.NullBufferObj; + buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT, + GL_READ_ONLY_ARB, + ctx->Unpack.BufferObj); + if (!buf) { + /* buffer is already mapped - that's an error */ + _mesa_error(ctx, GL_INVALID_OPERATION, + "glPixelMapusv(PBO is mapped)"); + return; + } + values = (const GLushort *) ADD_POINTERS(buf, values); + } + else if (!values) { + return; + } + + /* convert to floats */ + if (map == GL_PIXEL_MAP_I_TO_I || map == GL_PIXEL_MAP_S_TO_S) { + GLint i; + for (i = 0; i < mapsize; i++) { fvalues[i] = (GLfloat) values[i]; } } else { - for (i=0;i<n;i++) { + GLint i; + for (i = 0; i < mapsize; i++) { fvalues[i] = USHORT_TO_FLOAT( values[i] ); } } - _mesa_PixelMapfv(map, mapsize, fvalues); + + if (ctx->Unpack.BufferObj->Name) { + ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_UNPACK_BUFFER_EXT, + ctx->Unpack.BufferObj); + } + + pixelmap(ctx, map, mapsize, fvalues); } +/** + * Return size of the named map. + */ +static GLuint +get_map_size(GLcontext *ctx, GLenum map) +{ + switch (map) { + case GL_PIXEL_MAP_I_TO_I: + return ctx->Pixel.MapItoIsize; + case GL_PIXEL_MAP_S_TO_S: + return ctx->Pixel.MapStoSsize; + case GL_PIXEL_MAP_I_TO_R: + return ctx->Pixel.MapItoRsize; + case GL_PIXEL_MAP_I_TO_G: + return ctx->Pixel.MapItoGsize; + case GL_PIXEL_MAP_I_TO_B: + return ctx->Pixel.MapItoBsize; + case GL_PIXEL_MAP_I_TO_A: + return ctx->Pixel.MapItoAsize; + case GL_PIXEL_MAP_R_TO_R: + return ctx->Pixel.MapRtoRsize; + case GL_PIXEL_MAP_G_TO_G: + return ctx->Pixel.MapGtoGsize; + case GL_PIXEL_MAP_B_TO_B: + return ctx->Pixel.MapBtoBsize; + case GL_PIXEL_MAP_A_TO_A: + return ctx->Pixel.MapAtoAsize; + default: + return 0; + } +} + void GLAPIENTRY _mesa_GetPixelMapfv( GLenum map, GLfloat *values ) { GET_CURRENT_CONTEXT(ctx); - GLint i; + GLuint mapsize, i; ASSERT_OUTSIDE_BEGIN_END(ctx); + mapsize = get_map_size(ctx, map); + + if (ctx->Pack.BufferObj->Name) { + /* pack pixelmap into PBO */ + GLubyte *buf; + /* Note, need to use DefaultPacking and Pack's buffer object */ + ctx->DefaultPacking.BufferObj = ctx->Pack.BufferObj; + if (!_mesa_validate_pbo_access(&ctx->DefaultPacking, mapsize, 1, 1, + GL_INTENSITY, GL_FLOAT, values)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glGetPixelMapfv(invalid PBO access)"); + return; + } + /* restore */ + ctx->DefaultPacking.BufferObj = ctx->Array.NullBufferObj; + buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT, + GL_WRITE_ONLY_ARB, + ctx->Pack.BufferObj); + if (!buf) { + /* buffer is already mapped - that's an error */ + _mesa_error(ctx, GL_INVALID_OPERATION, + "glGetPixelMapfv(PBO is mapped)"); + return; + } + values = (GLfloat *) ADD_POINTERS(buf, values); + } + else if (!values) { + return; + } + switch (map) { case GL_PIXEL_MAP_I_TO_I: - for (i=0;i<ctx->Pixel.MapItoIsize;i++) { + for (i = 0; i < mapsize; i++) { values[i] = (GLfloat) ctx->Pixel.MapItoI[i]; } break; case GL_PIXEL_MAP_S_TO_S: - for (i=0;i<ctx->Pixel.MapStoSsize;i++) { + for (i = 0; i < mapsize; i++) { values[i] = (GLfloat) ctx->Pixel.MapStoS[i]; } break; case GL_PIXEL_MAP_I_TO_R: - MEMCPY(values,ctx->Pixel.MapItoR,ctx->Pixel.MapItoRsize*sizeof(GLfloat)); + MEMCPY(values, ctx->Pixel.MapItoR, mapsize * sizeof(GLfloat)); break; case GL_PIXEL_MAP_I_TO_G: - MEMCPY(values,ctx->Pixel.MapItoG,ctx->Pixel.MapItoGsize*sizeof(GLfloat)); + MEMCPY(values, ctx->Pixel.MapItoG, mapsize * sizeof(GLfloat)); break; case GL_PIXEL_MAP_I_TO_B: - MEMCPY(values,ctx->Pixel.MapItoB,ctx->Pixel.MapItoBsize*sizeof(GLfloat)); + MEMCPY(values, ctx->Pixel.MapItoB, mapsize * sizeof(GLfloat)); break; case GL_PIXEL_MAP_I_TO_A: - MEMCPY(values,ctx->Pixel.MapItoA,ctx->Pixel.MapItoAsize*sizeof(GLfloat)); + MEMCPY(values, ctx->Pixel.MapItoA, mapsize * sizeof(GLfloat)); break; case GL_PIXEL_MAP_R_TO_R: - MEMCPY(values,ctx->Pixel.MapRtoR,ctx->Pixel.MapRtoRsize*sizeof(GLfloat)); + MEMCPY(values, ctx->Pixel.MapRtoR, mapsize * sizeof(GLfloat)); break; case GL_PIXEL_MAP_G_TO_G: - MEMCPY(values,ctx->Pixel.MapGtoG,ctx->Pixel.MapGtoGsize*sizeof(GLfloat)); + MEMCPY(values, ctx->Pixel.MapGtoG, mapsize * sizeof(GLfloat)); break; case GL_PIXEL_MAP_B_TO_B: - MEMCPY(values,ctx->Pixel.MapBtoB,ctx->Pixel.MapBtoBsize*sizeof(GLfloat)); + MEMCPY(values, ctx->Pixel.MapBtoB, mapsize * sizeof(GLfloat)); break; case GL_PIXEL_MAP_A_TO_A: - MEMCPY(values,ctx->Pixel.MapAtoA,ctx->Pixel.MapAtoAsize*sizeof(GLfloat)); + MEMCPY(values, ctx->Pixel.MapAtoA, mapsize * sizeof(GLfloat)); break; default: _mesa_error( ctx, GL_INVALID_ENUM, "glGetPixelMapfv" ); } + + if (ctx->Pack.BufferObj->Name) { + ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT, + ctx->Pack.BufferObj); + } } @@ -446,59 +663,94 @@ void GLAPIENTRY _mesa_GetPixelMapuiv( GLenum map, GLuint *values ) { GET_CURRENT_CONTEXT(ctx); - GLint i; + GLint mapsize, i; ASSERT_OUTSIDE_BEGIN_END(ctx); + mapsize = get_map_size(ctx, map); + + if (ctx->Pack.BufferObj->Name) { + /* pack pixelmap into PBO */ + GLubyte *buf; + /* Note, need to use DefaultPacking and Pack's buffer object */ + ctx->DefaultPacking.BufferObj = ctx->Pack.BufferObj; + if (!_mesa_validate_pbo_access(&ctx->DefaultPacking, mapsize, 1, 1, + GL_INTENSITY, GL_UNSIGNED_INT, values)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glGetPixelMapuiv(invalid PBO access)"); + return; + } + /* restore */ + ctx->DefaultPacking.BufferObj = ctx->Array.NullBufferObj; + buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT, + GL_WRITE_ONLY_ARB, + ctx->Pack.BufferObj); + if (!buf) { + /* buffer is already mapped - that's an error */ + _mesa_error(ctx, GL_INVALID_OPERATION, + "glGetPixelMapuiv(PBO is mapped)"); + return; + } + values = (GLuint *) ADD_POINTERS(buf, values); + } + else if (!values) { + return; + } + switch (map) { case GL_PIXEL_MAP_I_TO_I: - MEMCPY(values, ctx->Pixel.MapItoI, ctx->Pixel.MapItoIsize*sizeof(GLint)); + MEMCPY(values, ctx->Pixel.MapItoI, mapsize * sizeof(GLint)); break; case GL_PIXEL_MAP_S_TO_S: - MEMCPY(values, ctx->Pixel.MapStoS, ctx->Pixel.MapStoSsize*sizeof(GLint)); + MEMCPY(values, ctx->Pixel.MapStoS, mapsize * sizeof(GLint)); break; case GL_PIXEL_MAP_I_TO_R: - for (i=0;i<ctx->Pixel.MapItoRsize;i++) { + for (i = 0; i < mapsize; i++) { values[i] = FLOAT_TO_UINT( ctx->Pixel.MapItoR[i] ); } break; case GL_PIXEL_MAP_I_TO_G: - for (i=0;i<ctx->Pixel.MapItoGsize;i++) { + for (i = 0; i < mapsize; i++) { values[i] = FLOAT_TO_UINT( ctx->Pixel.MapItoG[i] ); } break; case GL_PIXEL_MAP_I_TO_B: - for (i=0;i<ctx->Pixel.MapItoBsize;i++) { + for (i = 0; i < mapsize; i++) { values[i] = FLOAT_TO_UINT( ctx->Pixel.MapItoB[i] ); } break; case GL_PIXEL_MAP_I_TO_A: - for (i=0;i<ctx->Pixel.MapItoAsize;i++) { + for (i = 0; i < mapsize; i++) { values[i] = FLOAT_TO_UINT( ctx->Pixel.MapItoA[i] ); } break; case GL_PIXEL_MAP_R_TO_R: - for (i=0;i<ctx->Pixel.MapRtoRsize;i++) { + for (i = 0; i < mapsize; i++) { values[i] = FLOAT_TO_UINT( ctx->Pixel.MapRtoR[i] ); } break; case GL_PIXEL_MAP_G_TO_G: - for (i=0;i<ctx->Pixel.MapGtoGsize;i++) { + for (i = 0; i < mapsize; i++) { values[i] = FLOAT_TO_UINT( ctx->Pixel.MapGtoG[i] ); } break; case GL_PIXEL_MAP_B_TO_B: - for (i=0;i<ctx->Pixel.MapBtoBsize;i++) { + for (i = 0; i < mapsize; i++) { values[i] = FLOAT_TO_UINT( ctx->Pixel.MapBtoB[i] ); } break; case GL_PIXEL_MAP_A_TO_A: - for (i=0;i<ctx->Pixel.MapAtoAsize;i++) { + for (i = 0; i < mapsize; i++) { values[i] = FLOAT_TO_UINT( ctx->Pixel.MapAtoA[i] ); } break; default: _mesa_error( ctx, GL_INVALID_ENUM, "glGetPixelMapfv" ); } + + if (ctx->Pack.BufferObj->Name) { + ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT, + ctx->Pack.BufferObj); + } } @@ -506,63 +758,99 @@ void GLAPIENTRY _mesa_GetPixelMapusv( GLenum map, GLushort *values ) { GET_CURRENT_CONTEXT(ctx); - GLint i; + GLint mapsize, i; ASSERT_OUTSIDE_BEGIN_END(ctx); + mapsize = get_map_size(ctx, map); + + if (ctx->Pack.BufferObj->Name) { + /* pack pixelmap into PBO */ + GLubyte *buf; + /* Note, need to use DefaultPacking and Pack's buffer object */ + ctx->DefaultPacking.BufferObj = ctx->Pack.BufferObj; + if (!_mesa_validate_pbo_access(&ctx->DefaultPacking, mapsize, 1, 1, + GL_INTENSITY, GL_UNSIGNED_SHORT, + values)) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glGetPixelMapusv(invalid PBO access)"); + return; + } + /* restore */ + ctx->DefaultPacking.BufferObj = ctx->Array.NullBufferObj; + buf = (GLubyte *) ctx->Driver.MapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT, + GL_WRITE_ONLY_ARB, + ctx->Pack.BufferObj); + if (!buf) { + /* buffer is already mapped - that's an error */ + _mesa_error(ctx, GL_INVALID_OPERATION, + "glGetPixelMapusv(PBO is mapped)"); + return; + } + values = (GLushort *) ADD_POINTERS(buf, values); + } + else if (!values) { + return; + } + switch (map) { case GL_PIXEL_MAP_I_TO_I: - for (i=0;i<ctx->Pixel.MapItoIsize;i++) { + for (i = 0; i < mapsize; i++) { values[i] = (GLushort) ctx->Pixel.MapItoI[i]; } break; case GL_PIXEL_MAP_S_TO_S: - for (i=0;i<ctx->Pixel.MapStoSsize;i++) { + for (i = 0; i < mapsize; i++) { values[i] = (GLushort) ctx->Pixel.MapStoS[i]; } break; case GL_PIXEL_MAP_I_TO_R: - for (i=0;i<ctx->Pixel.MapItoRsize;i++) { + for (i = 0; i < mapsize; i++) { values[i] = FLOAT_TO_USHORT( ctx->Pixel.MapItoR[i] ); } break; case GL_PIXEL_MAP_I_TO_G: - for (i=0;i<ctx->Pixel.MapItoGsize;i++) { + for (i = 0; i < mapsize; i++) { values[i] = FLOAT_TO_USHORT( ctx->Pixel.MapItoG[i] ); } break; case GL_PIXEL_MAP_I_TO_B: - for (i=0;i<ctx->Pixel.MapItoBsize;i++) { + for (i = 0; i < mapsize; i++) { values[i] = FLOAT_TO_USHORT( ctx->Pixel.MapItoB[i] ); } break; case GL_PIXEL_MAP_I_TO_A: - for (i=0;i<ctx->Pixel.MapItoAsize;i++) { + for (i = 0; i < mapsize; i++) { values[i] = FLOAT_TO_USHORT( ctx->Pixel.MapItoA[i] ); } break; case GL_PIXEL_MAP_R_TO_R: - for (i=0;i<ctx->Pixel.MapRtoRsize;i++) { + for (i = 0; i < mapsize; i++) { values[i] = FLOAT_TO_USHORT( ctx->Pixel.MapRtoR[i] ); } break; case GL_PIXEL_MAP_G_TO_G: - for (i=0;i<ctx->Pixel.MapGtoGsize;i++) { + for (i = 0; i < mapsize; i++) { values[i] = FLOAT_TO_USHORT( ctx->Pixel.MapGtoG[i] ); } break; case GL_PIXEL_MAP_B_TO_B: - for (i=0;i<ctx->Pixel.MapBtoBsize;i++) { + for (i = 0; i < mapsize; i++) { values[i] = FLOAT_TO_USHORT( ctx->Pixel.MapBtoB[i] ); } break; case GL_PIXEL_MAP_A_TO_A: - for (i=0;i<ctx->Pixel.MapAtoAsize;i++) { + for (i = 0; i < mapsize; i++) { values[i] = FLOAT_TO_USHORT( ctx->Pixel.MapAtoA[i] ); } break; default: _mesa_error( ctx, GL_INVALID_ENUM, "glGetPixelMapfv" ); } + + if (ctx->Pack.BufferObj->Name) { + ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT, + ctx->Pack.BufferObj); + } } @@ -776,16 +1064,17 @@ _mesa_PixelTransferi( GLenum pname, GLint param ) _mesa_PixelTransferf( pname, (GLfloat) param ); } + + /**********************************************************************/ /***** Pixel processing functions ******/ /**********************************************************************/ - /* * Apply scale and bias factors to an array of RGBA pixels. */ void -_mesa_scale_and_bias_rgba(const GLcontext *ctx, GLuint n, GLfloat rgba[][4], +_mesa_scale_and_bias_rgba(GLcontext *ctx, GLuint n, GLfloat rgba[][4], GLfloat rScale, GLfloat gScale, GLfloat bScale, GLfloat aScale, GLfloat rBias, GLfloat gBias, |