| /* |
| * Mesa 3-D graphics library |
| * Version: 6.3 |
| * |
| * Copyright (C) 1999-2004 Brian Paul 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 |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * 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 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 NONINFRINGEMENT. IN NO EVENT SHALL |
| * BRIAN PAUL 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. |
| */ |
| |
| |
| #include "glheader.h" |
| #include "bufferobj.h" |
| #include "colormac.h" |
| #include "context.h" |
| #include "image.h" |
| #include "histogram.h" |
| |
| |
| /********************************************************************** |
| * Internal functions |
| */ |
| |
| |
| /* |
| * Update the min/max values from an array of fragment colors. |
| */ |
| void |
| _mesa_update_minmax(GLcontext *ctx, GLuint n, const GLfloat rgba[][4]) |
| { |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| /* update mins */ |
| if (rgba[i][RCOMP] < ctx->MinMax.Min[RCOMP]) |
| ctx->MinMax.Min[RCOMP] = rgba[i][RCOMP]; |
| if (rgba[i][GCOMP] < ctx->MinMax.Min[GCOMP]) |
| ctx->MinMax.Min[GCOMP] = rgba[i][GCOMP]; |
| if (rgba[i][BCOMP] < ctx->MinMax.Min[BCOMP]) |
| ctx->MinMax.Min[BCOMP] = rgba[i][BCOMP]; |
| if (rgba[i][ACOMP] < ctx->MinMax.Min[ACOMP]) |
| ctx->MinMax.Min[ACOMP] = rgba[i][ACOMP]; |
| |
| /* update maxs */ |
| if (rgba[i][RCOMP] > ctx->MinMax.Max[RCOMP]) |
| ctx->MinMax.Max[RCOMP] = rgba[i][RCOMP]; |
| if (rgba[i][GCOMP] > ctx->MinMax.Max[GCOMP]) |
| ctx->MinMax.Max[GCOMP] = rgba[i][GCOMP]; |
| if (rgba[i][BCOMP] > ctx->MinMax.Max[BCOMP]) |
| ctx->MinMax.Max[BCOMP] = rgba[i][BCOMP]; |
| if (rgba[i][ACOMP] > ctx->MinMax.Max[ACOMP]) |
| ctx->MinMax.Max[ACOMP] = rgba[i][ACOMP]; |
| } |
| } |
| |
| |
| /* |
| * Update the histogram values from an array of fragment colors. |
| */ |
| void |
| _mesa_update_histogram(GLcontext *ctx, GLuint n, const GLfloat rgba[][4]) |
| { |
| const GLint max = ctx->Histogram.Width - 1; |
| GLfloat w = (GLfloat) max; |
| GLuint i; |
| |
| if (ctx->Histogram.Width == 0) |
| return; |
| |
| for (i = 0; i < n; i++) { |
| GLint ri = IROUND(rgba[i][RCOMP] * w); |
| GLint gi = IROUND(rgba[i][GCOMP] * w); |
| GLint bi = IROUND(rgba[i][BCOMP] * w); |
| GLint ai = IROUND(rgba[i][ACOMP] * w); |
| ri = CLAMP(ri, 0, max); |
| gi = CLAMP(gi, 0, max); |
| bi = CLAMP(bi, 0, max); |
| ai = CLAMP(ai, 0, max); |
| ctx->Histogram.Count[ri][RCOMP]++; |
| ctx->Histogram.Count[gi][GCOMP]++; |
| ctx->Histogram.Count[bi][BCOMP]++; |
| ctx->Histogram.Count[ai][ACOMP]++; |
| } |
| } |
| |
| |
| /* |
| * XXX the packed pixel formats haven't been tested. |
| */ |
| static void |
| pack_histogram( GLcontext *ctx, |
| GLuint n, CONST GLuint rgba[][4], |
| GLenum format, GLenum type, GLvoid *destination, |
| const struct gl_pixelstore_attrib *packing ) |
| { |
| const GLint comps = _mesa_components_in_format(format); |
| GLuint luminance[MAX_WIDTH]; |
| |
| if (format == GL_LUMINANCE || format == GL_LUMINANCE_ALPHA) { |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| luminance[i] = rgba[i][RCOMP] + rgba[i][GCOMP] + rgba[i][BCOMP]; |
| } |
| } |
| |
| #define PACK_MACRO(TYPE) \ |
| { \ |
| GLuint i; \ |
| switch (format) { \ |
| case GL_RED: \ |
| for (i=0;i<n;i++) \ |
| dst[i] = (TYPE) rgba[i][RCOMP]; \ |
| break; \ |
| case GL_GREEN: \ |
| for (i=0;i<n;i++) \ |
| dst[i] = (TYPE) rgba[i][GCOMP]; \ |
| break; \ |
| case GL_BLUE: \ |
| for (i=0;i<n;i++) \ |
| dst[i] = (TYPE) rgba[i][BCOMP]; \ |
| break; \ |
| case GL_ALPHA: \ |
| for (i=0;i<n;i++) \ |
| dst[i] = (TYPE) rgba[i][ACOMP]; \ |
| break; \ |
| case GL_LUMINANCE: \ |
| for (i=0;i<n;i++) \ |
| dst[i] = (TYPE) luminance[i]; \ |
| break; \ |
| case GL_LUMINANCE_ALPHA: \ |
| for (i=0;i<n;i++) { \ |
| dst[i*2+0] = (TYPE) luminance[i]; \ |
| dst[i*2+1] = (TYPE) rgba[i][ACOMP]; \ |
| } \ |
| break; \ |
| case GL_RGB: \ |
| for (i=0;i<n;i++) { \ |
| dst[i*3+0] = (TYPE) rgba[i][RCOMP]; \ |
| dst[i*3+1] = (TYPE) rgba[i][GCOMP]; \ |
| dst[i*3+2] = (TYPE) rgba[i][BCOMP]; \ |
| } \ |
| break; \ |
| case GL_RGBA: \ |
| for (i=0;i<n;i++) { \ |
| dst[i*4+0] = (TYPE) rgba[i][RCOMP]; \ |
| dst[i*4+1] = (TYPE) rgba[i][GCOMP]; \ |
| dst[i*4+2] = (TYPE) rgba[i][BCOMP]; \ |
| dst[i*4+3] = (TYPE) rgba[i][ACOMP]; \ |
| } \ |
| break; \ |
| case GL_BGR: \ |
| for (i=0;i<n;i++) { \ |
| dst[i*3+0] = (TYPE) rgba[i][BCOMP]; \ |
| dst[i*3+1] = (TYPE) rgba[i][GCOMP]; \ |
| dst[i*3+2] = (TYPE) rgba[i][RCOMP]; \ |
| } \ |
| break; \ |
| case GL_BGRA: \ |
| for (i=0;i<n;i++) { \ |
| dst[i*4+0] = (TYPE) rgba[i][BCOMP]; \ |
| dst[i*4+1] = (TYPE) rgba[i][GCOMP]; \ |
| dst[i*4+2] = (TYPE) rgba[i][RCOMP]; \ |
| dst[i*4+3] = (TYPE) rgba[i][ACOMP]; \ |
| } \ |
| break; \ |
| case GL_ABGR_EXT: \ |
| for (i=0;i<n;i++) { \ |
| dst[i*4+0] = (TYPE) rgba[i][ACOMP]; \ |
| dst[i*4+1] = (TYPE) rgba[i][BCOMP]; \ |
| dst[i*4+2] = (TYPE) rgba[i][GCOMP]; \ |
| dst[i*4+3] = (TYPE) rgba[i][RCOMP]; \ |
| } \ |
| break; \ |
| default: \ |
| _mesa_problem(ctx, "bad format in pack_histogram"); \ |
| } \ |
| } |
| |
| switch (type) { |
| case GL_UNSIGNED_BYTE: |
| { |
| GLubyte *dst = (GLubyte *) destination; |
| PACK_MACRO(GLubyte); |
| } |
| break; |
| case GL_BYTE: |
| { |
| GLbyte *dst = (GLbyte *) destination; |
| PACK_MACRO(GLbyte); |
| } |
| break; |
| case GL_UNSIGNED_SHORT: |
| { |
| GLushort *dst = (GLushort *) destination; |
| PACK_MACRO(GLushort); |
| if (packing->SwapBytes) { |
| _mesa_swap2(dst, n * comps); |
| } |
| } |
| break; |
| case GL_SHORT: |
| { |
| GLshort *dst = (GLshort *) destination; |
| PACK_MACRO(GLshort); |
| if (packing->SwapBytes) { |
| _mesa_swap2((GLushort *) dst, n * comps); |
| } |
| } |
| break; |
| case GL_UNSIGNED_INT: |
| { |
| GLuint *dst = (GLuint *) destination; |
| PACK_MACRO(GLuint); |
| if (packing->SwapBytes) { |
| _mesa_swap4(dst, n * comps); |
| } |
| } |
| break; |
| case GL_INT: |
| { |
| GLint *dst = (GLint *) destination; |
| PACK_MACRO(GLint); |
| if (packing->SwapBytes) { |
| _mesa_swap4((GLuint *) dst, n * comps); |
| } |
| } |
| break; |
| case GL_FLOAT: |
| { |
| GLfloat *dst = (GLfloat *) destination; |
| PACK_MACRO(GLfloat); |
| if (packing->SwapBytes) { |
| _mesa_swap4((GLuint *) dst, n * comps); |
| } |
| } |
| break; |
| case GL_HALF_FLOAT_ARB: |
| { |
| /* temporarily store as GLuints */ |
| GLuint temp[4*HISTOGRAM_TABLE_SIZE]; |
| GLhalfARB *dst = (GLhalfARB *) destination; |
| GLuint i; |
| /* get GLuint values */ |
| PACK_MACRO(GLuint); |
| /* convert to GLhalf */ |
| for (i = 0; i < n * comps; i++) { |
| dst[i] = _mesa_float_to_half((GLfloat) temp[i]); |
| } |
| if (packing->SwapBytes) { |
| _mesa_swap2((GLushort *) dst, n * comps); |
| } |
| } |
| break; |
| case GL_UNSIGNED_BYTE_3_3_2: |
| if (format == GL_RGB) { |
| GLubyte *dst = (GLubyte *) destination; |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][RCOMP] & 0x7) << 5) |
| | ((rgba[i][GCOMP] & 0x7) << 2) |
| | ((rgba[i][BCOMP] & 0x3) ); |
| } |
| } |
| else { |
| GLubyte *dst = (GLubyte *) destination; |
| GLuint i; |
| ASSERT(format == GL_BGR); |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][BCOMP] & 0x7) << 5) |
| | ((rgba[i][GCOMP] & 0x7) << 2) |
| | ((rgba[i][RCOMP] & 0x3) ); |
| } |
| } |
| break; |
| case GL_UNSIGNED_BYTE_2_3_3_REV: |
| if (format == GL_RGB) { |
| GLubyte *dst = (GLubyte *) destination; |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][RCOMP] & 0x3) << 6) |
| | ((rgba[i][GCOMP] & 0x7) << 3) |
| | ((rgba[i][BCOMP] & 0x7) ); |
| } |
| } |
| else { |
| GLubyte *dst = (GLubyte *) destination; |
| GLuint i; |
| ASSERT(format == GL_BGR); |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][BCOMP] & 0x3) << 6) |
| | ((rgba[i][GCOMP] & 0x7) << 3) |
| | ((rgba[i][RCOMP] & 0x7) ); |
| } |
| } |
| break; |
| case GL_UNSIGNED_SHORT_5_6_5: |
| if (format == GL_RGB) { |
| GLushort *dst = (GLushort *) destination; |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][RCOMP] & 0x1f) << 11) |
| | ((rgba[i][GCOMP] & 0x3f) << 5) |
| | ((rgba[i][BCOMP] & 0x1f) ); |
| } |
| } |
| else { |
| GLushort *dst = (GLushort *) destination; |
| GLuint i; |
| ASSERT(format == GL_BGR); |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][BCOMP] & 0x1f) << 11) |
| | ((rgba[i][GCOMP] & 0x3f) << 5) |
| | ((rgba[i][RCOMP] & 0x1f) ); |
| } |
| } |
| break; |
| case GL_UNSIGNED_SHORT_5_6_5_REV: |
| if (format == GL_RGB) { |
| GLushort *dst = (GLushort *) destination; |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][BCOMP] & 0x1f) << 11) |
| | ((rgba[i][GCOMP] & 0x3f) << 5) |
| | ((rgba[i][RCOMP] & 0x1f) ); |
| } |
| } |
| else { |
| GLushort *dst = (GLushort *) destination; |
| GLuint i; |
| ASSERT(format == GL_BGR); |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][RCOMP] & 0x1f) << 11) |
| | ((rgba[i][GCOMP] & 0x3f) << 5) |
| | ((rgba[i][BCOMP] & 0x1f) ); |
| } |
| } |
| break; |
| case GL_UNSIGNED_SHORT_4_4_4_4: |
| if (format == GL_RGBA) { |
| GLushort *dst = (GLushort *) destination; |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][RCOMP] & 0xf) << 12) |
| | ((rgba[i][GCOMP] & 0xf) << 8) |
| | ((rgba[i][BCOMP] & 0xf) << 4) |
| | ((rgba[i][ACOMP] & 0xf) ); |
| } |
| } |
| else if (format == GL_BGRA) { |
| GLushort *dst = (GLushort *) destination; |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][BCOMP] & 0xf) << 12) |
| | ((rgba[i][GCOMP] & 0xf) << 8) |
| | ((rgba[i][RCOMP] & 0xf) << 4) |
| | ((rgba[i][ACOMP] & 0xf) ); |
| } |
| } |
| else { |
| GLushort *dst = (GLushort *) destination; |
| GLuint i; |
| ASSERT(format == GL_ABGR_EXT); |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][ACOMP] & 0xf) << 12) |
| | ((rgba[i][BCOMP] & 0xf) << 8) |
| | ((rgba[i][GCOMP] & 0xf) << 4) |
| | ((rgba[i][RCOMP] & 0xf) ); |
| } |
| } |
| break; |
| case GL_UNSIGNED_SHORT_4_4_4_4_REV: |
| if (format == GL_RGBA) { |
| GLushort *dst = (GLushort *) destination; |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][ACOMP] & 0xf) << 12) |
| | ((rgba[i][BCOMP] & 0xf) << 8) |
| | ((rgba[i][GCOMP] & 0xf) << 4) |
| | ((rgba[i][RCOMP] & 0xf) ); |
| } |
| } |
| else if (format == GL_BGRA) { |
| GLushort *dst = (GLushort *) destination; |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][ACOMP] & 0xf) << 12) |
| | ((rgba[i][RCOMP] & 0xf) << 8) |
| | ((rgba[i][GCOMP] & 0xf) << 4) |
| | ((rgba[i][BCOMP] & 0xf) ); |
| } |
| } |
| else { |
| GLushort *dst = (GLushort *) destination; |
| GLuint i; |
| ASSERT(format == GL_ABGR_EXT); |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][RCOMP] & 0xf) << 12) |
| | ((rgba[i][GCOMP] & 0xf) << 8) |
| | ((rgba[i][BCOMP] & 0xf) << 4) |
| | ((rgba[i][ACOMP] & 0xf) ); |
| } |
| } |
| break; |
| case GL_UNSIGNED_SHORT_5_5_5_1: |
| if (format == GL_RGBA) { |
| GLushort *dst = (GLushort *) destination; |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][RCOMP] & 0x1f) << 11) |
| | ((rgba[i][GCOMP] & 0x1f) << 6) |
| | ((rgba[i][BCOMP] & 0x1f) << 1) |
| | ((rgba[i][ACOMP] & 0x1) ); |
| } |
| } |
| else if (format == GL_BGRA) { |
| GLushort *dst = (GLushort *) destination; |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][BCOMP] & 0x1f) << 11) |
| | ((rgba[i][GCOMP] & 0x1f) << 6) |
| | ((rgba[i][RCOMP] & 0x1f) << 1) |
| | ((rgba[i][ACOMP] & 0x1) ); |
| } |
| } |
| else { |
| GLushort *dst = (GLushort *) destination; |
| GLuint i; |
| ASSERT(format == GL_ABGR_EXT); |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][ACOMP] & 0x1f) << 11) |
| | ((rgba[i][BCOMP] & 0x1f) << 6) |
| | ((rgba[i][GCOMP] & 0x1f) << 1) |
| | ((rgba[i][RCOMP] & 0x1) ); |
| } |
| } |
| break; |
| case GL_UNSIGNED_SHORT_1_5_5_5_REV: |
| if (format == GL_RGBA) { |
| GLushort *dst = (GLushort *) destination; |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][ACOMP] & 0x1f) << 11) |
| | ((rgba[i][BCOMP] & 0x1f) << 6) |
| | ((rgba[i][GCOMP] & 0x1f) << 1) |
| | ((rgba[i][RCOMP] & 0x1) ); |
| } |
| } |
| else if (format == GL_BGRA) { |
| GLushort *dst = (GLushort *) destination; |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][ACOMP] & 0x1f) << 11) |
| | ((rgba[i][RCOMP] & 0x1f) << 6) |
| | ((rgba[i][GCOMP] & 0x1f) << 1) |
| | ((rgba[i][BCOMP] & 0x1) ); |
| } |
| } |
| else { |
| GLushort *dst = (GLushort *) destination; |
| GLuint i; |
| ASSERT(format == GL_ABGR_EXT); |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][RCOMP] & 0x1f) << 11) |
| | ((rgba[i][GCOMP] & 0x1f) << 6) |
| | ((rgba[i][BCOMP] & 0x1f) << 1) |
| | ((rgba[i][ACOMP] & 0x1) ); |
| } |
| } |
| break; |
| case GL_UNSIGNED_INT_8_8_8_8: |
| if (format == GL_RGBA) { |
| GLuint *dst = (GLuint *) destination; |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][RCOMP] & 0xff) << 24) |
| | ((rgba[i][GCOMP] & 0xff) << 16) |
| | ((rgba[i][BCOMP] & 0xff) << 8) |
| | ((rgba[i][ACOMP] & 0xff) ); |
| } |
| } |
| else if (format == GL_BGRA) { |
| GLuint *dst = (GLuint *) destination; |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][BCOMP] & 0xff) << 24) |
| | ((rgba[i][GCOMP] & 0xff) << 16) |
| | ((rgba[i][RCOMP] & 0xff) << 8) |
| | ((rgba[i][ACOMP] & 0xff) ); |
| } |
| } |
| else { |
| GLuint *dst = (GLuint *) destination; |
| GLuint i; |
| ASSERT(format == GL_ABGR_EXT); |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][ACOMP] & 0xff) << 24) |
| | ((rgba[i][BCOMP] & 0xff) << 16) |
| | ((rgba[i][GCOMP] & 0xff) << 8) |
| | ((rgba[i][RCOMP] & 0xff) ); |
| } |
| } |
| break; |
| case GL_UNSIGNED_INT_8_8_8_8_REV: |
| if (format == GL_RGBA) { |
| GLuint *dst = (GLuint *) destination; |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][ACOMP] & 0xff) << 24) |
| | ((rgba[i][BCOMP] & 0xff) << 16) |
| | ((rgba[i][GCOMP] & 0xff) << 8) |
| | ((rgba[i][RCOMP] & 0xff) ); |
| } |
| } |
| else if (format == GL_BGRA) { |
| GLuint *dst = (GLuint *) destination; |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][ACOMP] & 0xff) << 24) |
| | ((rgba[i][RCOMP] & 0xff) << 16) |
| | ((rgba[i][GCOMP] & 0xff) << 8) |
| | ((rgba[i][BCOMP] & 0xff) ); |
| } |
| } |
| else { |
| GLuint *dst = (GLuint *) destination; |
| GLuint i; |
| ASSERT(format == GL_ABGR_EXT); |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][RCOMP] & 0xff) << 24) |
| | ((rgba[i][GCOMP] & 0xff) << 16) |
| | ((rgba[i][BCOMP] & 0xff) << 8) |
| | ((rgba[i][ACOMP] & 0xff) ); |
| } |
| } |
| break; |
| case GL_UNSIGNED_INT_10_10_10_2: |
| if (format == GL_RGBA) { |
| GLuint *dst = (GLuint *) destination; |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][RCOMP] & 0x3ff) << 22) |
| | ((rgba[i][GCOMP] & 0x3ff) << 12) |
| | ((rgba[i][BCOMP] & 0x3ff) << 2) |
| | ((rgba[i][ACOMP] & 0x3) ); |
| } |
| } |
| else if (format == GL_BGRA) { |
| GLuint *dst = (GLuint *) destination; |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][BCOMP] & 0x3ff) << 22) |
| | ((rgba[i][GCOMP] & 0x3ff) << 12) |
| | ((rgba[i][RCOMP] & 0x3ff) << 2) |
| | ((rgba[i][ACOMP] & 0x3) ); |
| } |
| } |
| else { |
| GLuint *dst = (GLuint *) destination; |
| GLuint i; |
| ASSERT(format == GL_ABGR_EXT); |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][ACOMP] & 0x3ff) << 22) |
| | ((rgba[i][BCOMP] & 0x3ff) << 12) |
| | ((rgba[i][GCOMP] & 0x3ff) << 2) |
| | ((rgba[i][RCOMP] & 0x3) ); |
| } |
| } |
| break; |
| case GL_UNSIGNED_INT_2_10_10_10_REV: |
| if (format == GL_RGBA) { |
| GLuint *dst = (GLuint *) destination; |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][ACOMP] & 0x3ff) << 22) |
| | ((rgba[i][BCOMP] & 0x3ff) << 12) |
| | ((rgba[i][GCOMP] & 0x3ff) << 2) |
| | ((rgba[i][RCOMP] & 0x3) ); |
| } |
| } |
| else if (format == GL_BGRA) { |
| GLuint *dst = (GLuint *) destination; |
| GLuint i; |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][ACOMP] & 0x3ff) << 22) |
| | ((rgba[i][RCOMP] & 0x3ff) << 12) |
| | ((rgba[i][GCOMP] & 0x3ff) << 2) |
| | ((rgba[i][BCOMP] & 0x3) ); |
| } |
| } |
| else { |
| GLuint *dst = (GLuint *) destination; |
| GLuint i; |
| ASSERT(format == GL_ABGR_EXT); |
| for (i = 0; i < n; i++) { |
| dst[i] = ((rgba[i][RCOMP] & 0x3ff) << 22) |
| | ((rgba[i][GCOMP] & 0x3ff) << 12) |
| | ((rgba[i][BCOMP] & 0x3ff) << 2) |
| | ((rgba[i][ACOMP] & 0x3) ); |
| } |
| } |
| break; |
| default: |
| _mesa_problem(ctx, "Bad type in pack_histogram"); |
| } |
| |
| #undef PACK_MACRO |
| } |
| |
| |
| /* |
| * Given an internalFormat token passed to glHistogram or glMinMax, |
| * return the corresponding base format. |
| * Return -1 if invalid token. |
| */ |
| static GLint |
| base_histogram_format( GLenum format ) |
| { |
| switch (format) { |
| case GL_ALPHA: |
| case GL_ALPHA4: |
| case GL_ALPHA8: |
| case GL_ALPHA12: |
| case GL_ALPHA16: |
| return GL_ALPHA; |
| case GL_LUMINANCE: |
| case GL_LUMINANCE4: |
| case GL_LUMINANCE8: |
| case GL_LUMINANCE12: |
| case GL_LUMINANCE16: |
| return GL_LUMINANCE; |
| case GL_LUMINANCE_ALPHA: |
| case GL_LUMINANCE4_ALPHA4: |
| case GL_LUMINANCE6_ALPHA2: |
| case GL_LUMINANCE8_ALPHA8: |
| case GL_LUMINANCE12_ALPHA4: |
| case GL_LUMINANCE12_ALPHA12: |
| case GL_LUMINANCE16_ALPHA16: |
| return GL_LUMINANCE_ALPHA; |
| case GL_RGB: |
| case GL_R3_G3_B2: |
| case GL_RGB4: |
| case GL_RGB5: |
| case GL_RGB8: |
| case GL_RGB10: |
| case GL_RGB12: |
| case GL_RGB16: |
| return GL_RGB; |
| case GL_RGBA: |
| case GL_RGBA2: |
| case GL_RGBA4: |
| case GL_RGB5_A1: |
| case GL_RGBA8: |
| case GL_RGB10_A2: |
| case GL_RGBA12: |
| case GL_RGBA16: |
| return GL_RGBA; |
| default: |
| return -1; /* error */ |
| } |
| } |
| |
| |
| |
| /********************************************************************** |
| * API functions |
| */ |
| |
| |
| void GLAPIENTRY |
| _mesa_GetMinmax(GLenum target, GLboolean reset, GLenum format, GLenum type, GLvoid *values) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); |
| |
| if (!ctx->Extensions.EXT_histogram && !ctx->Extensions.ARB_imaging) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, "glGetMinmax"); |
| return; |
| } |
| |
| if (target != GL_MINMAX) { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetMinmax(target)"); |
| return; |
| } |
| |
| if (format != GL_RED && |
| format != GL_GREEN && |
| format != GL_BLUE && |
| format != GL_ALPHA && |
| format != GL_RGB && |
| format != GL_BGR && |
| format != GL_RGBA && |
| format != GL_BGRA && |
| format != GL_ABGR_EXT && |
| format != GL_LUMINANCE && |
| format != GL_LUMINANCE_ALPHA) { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetMinMax(format)"); |
| } |
| |
| if (!_mesa_is_legal_format_and_type(ctx, format, type)) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, "glGetMinmax(format or type)"); |
| return; |
| } |
| |
| if (ctx->Pack.BufferObj->Name) { |
| /* pack min/max values into a PBO */ |
| GLubyte *buf; |
| if (!_mesa_validate_pbo_access(1, &ctx->Pack, 2, 1, 1, |
| format, type, values)) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, |
| "glGetMinMax(invalid PBO access)"); |
| return; |
| } |
| 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,"glGetMinMax(PBO is mapped)"); |
| return; |
| } |
| values = ADD_POINTERS(buf, values); |
| } |
| else if (!values) { |
| /* not an error */ |
| return; |
| } |
| |
| { |
| GLfloat minmax[2][4]; |
| minmax[0][RCOMP] = CLAMP(ctx->MinMax.Min[RCOMP], 0.0F, 1.0F); |
| minmax[0][GCOMP] = CLAMP(ctx->MinMax.Min[GCOMP], 0.0F, 1.0F); |
| minmax[0][BCOMP] = CLAMP(ctx->MinMax.Min[BCOMP], 0.0F, 1.0F); |
| minmax[0][ACOMP] = CLAMP(ctx->MinMax.Min[ACOMP], 0.0F, 1.0F); |
| minmax[1][RCOMP] = CLAMP(ctx->MinMax.Max[RCOMP], 0.0F, 1.0F); |
| minmax[1][GCOMP] = CLAMP(ctx->MinMax.Max[GCOMP], 0.0F, 1.0F); |
| minmax[1][BCOMP] = CLAMP(ctx->MinMax.Max[BCOMP], 0.0F, 1.0F); |
| minmax[1][ACOMP] = CLAMP(ctx->MinMax.Max[ACOMP], 0.0F, 1.0F); |
| _mesa_pack_rgba_span_float(ctx, 2, minmax, |
| format, type, values, &ctx->Pack, 0x0); |
| } |
| |
| if (ctx->Pack.BufferObj->Name) { |
| ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT, |
| ctx->Pack.BufferObj); |
| } |
| |
| if (reset) { |
| _mesa_ResetMinmax(GL_MINMAX); |
| } |
| } |
| |
| |
| void GLAPIENTRY |
| _mesa_GetHistogram(GLenum target, GLboolean reset, GLenum format, GLenum type, GLvoid *values) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); |
| |
| if (!ctx->Extensions.EXT_histogram && !ctx->Extensions.ARB_imaging) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, "glGetHistogram"); |
| return; |
| } |
| |
| if (target != GL_HISTOGRAM) { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetHistogram(target)"); |
| return; |
| } |
| |
| if (format != GL_RED && |
| format != GL_GREEN && |
| format != GL_BLUE && |
| format != GL_ALPHA && |
| format != GL_RGB && |
| format != GL_BGR && |
| format != GL_RGBA && |
| format != GL_BGRA && |
| format != GL_ABGR_EXT && |
| format != GL_LUMINANCE && |
| format != GL_LUMINANCE_ALPHA) { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetHistogram(format)"); |
| } |
| |
| if (!_mesa_is_legal_format_and_type(ctx, format, type)) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, "glGetHistogram(format or type)"); |
| return; |
| } |
| |
| if (ctx->Pack.BufferObj->Name) { |
| /* pack min/max values into a PBO */ |
| GLubyte *buf; |
| if (!_mesa_validate_pbo_access(1, &ctx->Pack, ctx->Histogram.Width, 1, 1, |
| format, type, values)) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, |
| "glGetHistogram(invalid PBO access)"); |
| return; |
| } |
| 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,"glGetHistogram(PBO is mapped)"); |
| return; |
| } |
| values = ADD_POINTERS(buf, values); |
| } |
| else if (!values) { |
| /* not an error */ |
| return; |
| } |
| |
| pack_histogram(ctx, ctx->Histogram.Width, |
| (CONST GLuint (*)[4]) ctx->Histogram.Count, |
| format, type, values, &ctx->Pack); |
| |
| if (ctx->Pack.BufferObj->Name) { |
| ctx->Driver.UnmapBuffer(ctx, GL_PIXEL_PACK_BUFFER_EXT, |
| ctx->Pack.BufferObj); |
| } |
| |
| if (reset) { |
| GLuint i; |
| for (i = 0; i < HISTOGRAM_TABLE_SIZE; i++) { |
| ctx->Histogram.Count[i][0] = 0; |
| ctx->Histogram.Count[i][1] = 0; |
| ctx->Histogram.Count[i][2] = 0; |
| ctx->Histogram.Count[i][3] = 0; |
| } |
| } |
| } |
| |
| |
| void GLAPIENTRY |
| _mesa_GetHistogramParameterfv(GLenum target, GLenum pname, GLfloat *params) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| ASSERT_OUTSIDE_BEGIN_END(ctx); |
| |
| if (!ctx->Extensions.EXT_histogram && !ctx->Extensions.ARB_imaging) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, "glGetHistogramParameterfv"); |
| return; |
| } |
| |
| if (target != GL_HISTOGRAM && target != GL_PROXY_HISTOGRAM) { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetHistogramParameterfv(target)"); |
| return; |
| } |
| |
| switch (pname) { |
| case GL_HISTOGRAM_WIDTH: |
| *params = (GLfloat) ctx->Histogram.Width; |
| break; |
| case GL_HISTOGRAM_FORMAT: |
| *params = (GLfloat) ctx->Histogram.Format; |
| break; |
| case GL_HISTOGRAM_RED_SIZE: |
| *params = (GLfloat) ctx->Histogram.RedSize; |
| break; |
| case GL_HISTOGRAM_GREEN_SIZE: |
| *params = (GLfloat) ctx->Histogram.GreenSize; |
| break; |
| case GL_HISTOGRAM_BLUE_SIZE: |
| *params = (GLfloat) ctx->Histogram.BlueSize; |
| break; |
| case GL_HISTOGRAM_ALPHA_SIZE: |
| *params = (GLfloat) ctx->Histogram.AlphaSize; |
| break; |
| case GL_HISTOGRAM_LUMINANCE_SIZE: |
| *params = (GLfloat) ctx->Histogram.LuminanceSize; |
| break; |
| case GL_HISTOGRAM_SINK: |
| *params = (GLfloat) ctx->Histogram.Sink; |
| break; |
| default: |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetHistogramParameterfv(pname)"); |
| } |
| } |
| |
| |
| void GLAPIENTRY |
| _mesa_GetHistogramParameteriv(GLenum target, GLenum pname, GLint *params) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| ASSERT_OUTSIDE_BEGIN_END(ctx); |
| |
| if (!ctx->Extensions.EXT_histogram && !ctx->Extensions.ARB_imaging) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, "glGetHistogramParameteriv"); |
| return; |
| } |
| |
| if (target != GL_HISTOGRAM && target != GL_PROXY_HISTOGRAM) { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetHistogramParameteriv(target)"); |
| return; |
| } |
| |
| switch (pname) { |
| case GL_HISTOGRAM_WIDTH: |
| *params = (GLint) ctx->Histogram.Width; |
| break; |
| case GL_HISTOGRAM_FORMAT: |
| *params = (GLint) ctx->Histogram.Format; |
| break; |
| case GL_HISTOGRAM_RED_SIZE: |
| *params = (GLint) ctx->Histogram.RedSize; |
| break; |
| case GL_HISTOGRAM_GREEN_SIZE: |
| *params = (GLint) ctx->Histogram.GreenSize; |
| break; |
| case GL_HISTOGRAM_BLUE_SIZE: |
| *params = (GLint) ctx->Histogram.BlueSize; |
| break; |
| case GL_HISTOGRAM_ALPHA_SIZE: |
| *params = (GLint) ctx->Histogram.AlphaSize; |
| break; |
| case GL_HISTOGRAM_LUMINANCE_SIZE: |
| *params = (GLint) ctx->Histogram.LuminanceSize; |
| break; |
| case GL_HISTOGRAM_SINK: |
| *params = (GLint) ctx->Histogram.Sink; |
| break; |
| default: |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetHistogramParameteriv(pname)"); |
| } |
| } |
| |
| |
| void GLAPIENTRY |
| _mesa_GetMinmaxParameterfv(GLenum target, GLenum pname, GLfloat *params) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| ASSERT_OUTSIDE_BEGIN_END(ctx); |
| |
| if (!ctx->Extensions.EXT_histogram && !ctx->Extensions.ARB_imaging) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, "glGetMinmaxParameterfv"); |
| return; |
| } |
| if (target != GL_MINMAX) { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetMinmaxParameterfv(target)"); |
| return; |
| } |
| if (pname == GL_MINMAX_FORMAT) { |
| *params = (GLfloat) ctx->MinMax.Format; |
| } |
| else if (pname == GL_MINMAX_SINK) { |
| *params = (GLfloat) ctx->MinMax.Sink; |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetMinMaxParameterfv(pname)"); |
| } |
| } |
| |
| |
| void GLAPIENTRY |
| _mesa_GetMinmaxParameteriv(GLenum target, GLenum pname, GLint *params) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| ASSERT_OUTSIDE_BEGIN_END(ctx); |
| |
| if (!ctx->Extensions.EXT_histogram && !ctx->Extensions.ARB_imaging) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, "glGetMinmaxParameteriv"); |
| return; |
| } |
| if (target != GL_MINMAX) { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetMinmaxParameteriv(target)"); |
| return; |
| } |
| if (pname == GL_MINMAX_FORMAT) { |
| *params = (GLint) ctx->MinMax.Format; |
| } |
| else if (pname == GL_MINMAX_SINK) { |
| *params = (GLint) ctx->MinMax.Sink; |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetMinMaxParameteriv(pname)"); |
| } |
| } |
| |
| |
| void GLAPIENTRY |
| _mesa_Histogram(GLenum target, GLsizei width, GLenum internalFormat, GLboolean sink) |
| { |
| GLuint i; |
| GLboolean error = GL_FALSE; |
| GET_CURRENT_CONTEXT(ctx); |
| ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); /* sideeffects */ |
| |
| if (!ctx->Extensions.EXT_histogram && !ctx->Extensions.ARB_imaging) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, "glHistogram"); |
| return; |
| } |
| |
| if (target != GL_HISTOGRAM && target != GL_PROXY_HISTOGRAM) { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glHistogram(target)"); |
| return; |
| } |
| |
| if (width < 0 || width > HISTOGRAM_TABLE_SIZE) { |
| if (target == GL_PROXY_HISTOGRAM) { |
| error = GL_TRUE; |
| } |
| else { |
| if (width < 0) |
| _mesa_error(ctx, GL_INVALID_VALUE, "glHistogram(width)"); |
| else |
| _mesa_error(ctx, GL_TABLE_TOO_LARGE, "glHistogram(width)"); |
| return; |
| } |
| } |
| |
| if (width != 0 && _mesa_bitcount(width) != 1) { |
| if (target == GL_PROXY_HISTOGRAM) { |
| error = GL_TRUE; |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_VALUE, "glHistogram(width)"); |
| return; |
| } |
| } |
| |
| if (base_histogram_format(internalFormat) < 0) { |
| if (target == GL_PROXY_HISTOGRAM) { |
| error = GL_TRUE; |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glHistogram(internalFormat)"); |
| return; |
| } |
| } |
| |
| /* reset histograms */ |
| for (i = 0; i < HISTOGRAM_TABLE_SIZE; i++) { |
| ctx->Histogram.Count[i][0] = 0; |
| ctx->Histogram.Count[i][1] = 0; |
| ctx->Histogram.Count[i][2] = 0; |
| ctx->Histogram.Count[i][3] = 0; |
| } |
| |
| if (error) { |
| ctx->Histogram.Width = 0; |
| ctx->Histogram.Format = 0; |
| ctx->Histogram.RedSize = 0; |
| ctx->Histogram.GreenSize = 0; |
| ctx->Histogram.BlueSize = 0; |
| ctx->Histogram.AlphaSize = 0; |
| ctx->Histogram.LuminanceSize = 0; |
| } |
| else { |
| ctx->Histogram.Width = width; |
| ctx->Histogram.Format = internalFormat; |
| ctx->Histogram.Sink = sink; |
| ctx->Histogram.RedSize = 8 * sizeof(GLuint); |
| ctx->Histogram.GreenSize = 8 * sizeof(GLuint); |
| ctx->Histogram.BlueSize = 8 * sizeof(GLuint); |
| ctx->Histogram.AlphaSize = 8 * sizeof(GLuint); |
| ctx->Histogram.LuminanceSize = 8 * sizeof(GLuint); |
| } |
| |
| ctx->NewState |= _NEW_PIXEL; |
| } |
| |
| |
| void GLAPIENTRY |
| _mesa_Minmax(GLenum target, GLenum internalFormat, GLboolean sink) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| ASSERT_OUTSIDE_BEGIN_END(ctx); |
| |
| if (!ctx->Extensions.EXT_histogram && !ctx->Extensions.ARB_imaging) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, "glMinmax"); |
| return; |
| } |
| |
| if (target != GL_MINMAX) { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glMinMax(target)"); |
| return; |
| } |
| |
| if (base_histogram_format(internalFormat) < 0) { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glMinMax(internalFormat)"); |
| return; |
| } |
| |
| if (ctx->MinMax.Sink == sink) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_PIXEL); |
| ctx->MinMax.Sink = sink; |
| } |
| |
| |
| void GLAPIENTRY |
| _mesa_ResetHistogram(GLenum target) |
| { |
| GLuint i; |
| GET_CURRENT_CONTEXT(ctx); |
| ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); /* sideeffects */ |
| |
| if (!ctx->Extensions.EXT_histogram && !ctx->Extensions.ARB_imaging) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, "glResetHistogram"); |
| return; |
| } |
| |
| if (target != GL_HISTOGRAM) { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glResetHistogram(target)"); |
| return; |
| } |
| |
| for (i = 0; i < HISTOGRAM_TABLE_SIZE; i++) { |
| ctx->Histogram.Count[i][0] = 0; |
| ctx->Histogram.Count[i][1] = 0; |
| ctx->Histogram.Count[i][2] = 0; |
| ctx->Histogram.Count[i][3] = 0; |
| } |
| |
| ctx->NewState |= _NEW_PIXEL; |
| } |
| |
| |
| void GLAPIENTRY |
| _mesa_ResetMinmax(GLenum target) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); |
| |
| if (!ctx->Extensions.EXT_histogram && !ctx->Extensions.ARB_imaging) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, "glResetMinmax"); |
| return; |
| } |
| |
| if (target != GL_MINMAX) { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glResetMinMax(target)"); |
| return; |
| } |
| |
| ctx->MinMax.Min[RCOMP] = 1000; ctx->MinMax.Max[RCOMP] = -1000; |
| ctx->MinMax.Min[GCOMP] = 1000; ctx->MinMax.Max[GCOMP] = -1000; |
| ctx->MinMax.Min[BCOMP] = 1000; ctx->MinMax.Max[BCOMP] = -1000; |
| ctx->MinMax.Min[ACOMP] = 1000; ctx->MinMax.Max[ACOMP] = -1000; |
| ctx->NewState |= _NEW_PIXEL; |
| } |
| |
| |
| |
| /**********************************************************************/ |
| /***** Initialization *****/ |
| /**********************************************************************/ |
| |
| void _mesa_init_histogram( GLcontext * ctx ) |
| { |
| int i; |
| |
| /* Histogram group */ |
| ctx->Histogram.Width = 0; |
| ctx->Histogram.Format = GL_RGBA; |
| ctx->Histogram.Sink = GL_FALSE; |
| ctx->Histogram.RedSize = 0; |
| ctx->Histogram.GreenSize = 0; |
| ctx->Histogram.BlueSize = 0; |
| ctx->Histogram.AlphaSize = 0; |
| ctx->Histogram.LuminanceSize = 0; |
| for (i = 0; i < HISTOGRAM_TABLE_SIZE; i++) { |
| ctx->Histogram.Count[i][0] = 0; |
| ctx->Histogram.Count[i][1] = 0; |
| ctx->Histogram.Count[i][2] = 0; |
| ctx->Histogram.Count[i][3] = 0; |
| } |
| |
| /* Min/Max group */ |
| ctx->MinMax.Format = GL_RGBA; |
| ctx->MinMax.Sink = GL_FALSE; |
| ctx->MinMax.Min[RCOMP] = 1000; ctx->MinMax.Max[RCOMP] = -1000; |
| ctx->MinMax.Min[GCOMP] = 1000; ctx->MinMax.Max[GCOMP] = -1000; |
| ctx->MinMax.Min[BCOMP] = 1000; ctx->MinMax.Max[BCOMP] = -1000; |
| ctx->MinMax.Min[ACOMP] = 1000; ctx->MinMax.Max[ACOMP] = -1000; |
| } |
