diff options
author | Brian Paul <brian.paul@tungstengraphics.com> | 2004-02-28 21:10:19 +0000 |
---|---|---|
committer | Brian Paul <brian.paul@tungstengraphics.com> | 2004-02-28 21:10:19 +0000 |
commit | 833d96aa913dcb0c5ca085cc7ebee3df90f7fbf8 (patch) | |
tree | cc8ea7905ac3c0e43b2954f661da2d424f6d2253 /src/mesa/main/image.c | |
parent | 8cfd08b6134e2036ddceb1facfa82e15026068a2 (diff) |
consolidate image transfer operations in new _mesa_apply_rgba_transfer_ops() function
Diffstat (limited to 'src/mesa/main/image.c')
-rw-r--r-- | src/mesa/main/image.c | 309 |
1 files changed, 110 insertions, 199 deletions
diff --git a/src/mesa/main/image.c b/src/mesa/main/image.c index 23adb693b5a..7defce8813b 100644 --- a/src/mesa/main/image.c +++ b/src/mesa/main/image.c @@ -911,6 +911,83 @@ _mesa_pack_bitmap( GLint width, GLint height, const GLubyte *source, } +/** + * Apply various pixel transfer operations to an array of RGBA pixels + * as indicated by the transferOps bitmask + */ +void +_mesa_apply_rgba_transfer_ops(GLcontext *ctx, GLuint transferOps, + GLuint n, GLfloat rgba[][4]) +{ + /* scale & bias */ + if (transferOps & IMAGE_SCALE_BIAS_BIT) { + _mesa_scale_and_bias_rgba(ctx, n, rgba, + ctx->Pixel.RedScale, ctx->Pixel.GreenScale, + ctx->Pixel.BlueScale, ctx->Pixel.AlphaScale, + ctx->Pixel.RedBias, ctx->Pixel.GreenBias, + ctx->Pixel.BlueBias, ctx->Pixel.AlphaBias); + } + /* color map lookup */ + if (transferOps & IMAGE_MAP_COLOR_BIT) { + _mesa_map_rgba( ctx, n, rgba ); + } + /* GL_COLOR_TABLE lookup */ + if (transferOps & IMAGE_COLOR_TABLE_BIT) { + _mesa_lookup_rgba_float(&ctx->ColorTable, n, rgba); + } + /* convolution */ + if (transferOps & IMAGE_CONVOLUTION_BIT) { + /* this has to be done in the calling code */ + _mesa_problem(ctx, "IMAGE_CONVOLUTION_BIT set in _mesa_apply_transfer_ops"); + } + /* GL_POST_CONVOLUTION_RED/GREEN/BLUE/ALPHA_SCALE/BIAS */ + if (transferOps & IMAGE_POST_CONVOLUTION_SCALE_BIAS) { + _mesa_scale_and_bias_rgba(ctx, n, rgba, + ctx->Pixel.PostConvolutionScale[RCOMP], + ctx->Pixel.PostConvolutionScale[GCOMP], + ctx->Pixel.PostConvolutionScale[BCOMP], + ctx->Pixel.PostConvolutionScale[ACOMP], + ctx->Pixel.PostConvolutionBias[RCOMP], + ctx->Pixel.PostConvolutionBias[GCOMP], + ctx->Pixel.PostConvolutionBias[BCOMP], + ctx->Pixel.PostConvolutionBias[ACOMP]); + } + /* GL_POST_CONVOLUTION_COLOR_TABLE lookup */ + if (transferOps & IMAGE_POST_CONVOLUTION_COLOR_TABLE_BIT) { + _mesa_lookup_rgba_float(&ctx->PostConvolutionColorTable, n, rgba); + } + /* color matrix transform */ + if (transferOps & IMAGE_COLOR_MATRIX_BIT) { + _mesa_transform_rgba(ctx, n, rgba); + } + /* GL_POST_COLOR_MATRIX_COLOR_TABLE lookup */ + if (transferOps & IMAGE_POST_COLOR_MATRIX_COLOR_TABLE_BIT) { + _mesa_lookup_rgba_float(&ctx->PostColorMatrixColorTable, n, rgba); + } + /* update histogram count */ + if (transferOps & IMAGE_HISTOGRAM_BIT) { + _mesa_update_histogram(ctx, n, (CONST GLfloat (*)[4]) rgba); + } + /* update min/max values */ + if (transferOps & IMAGE_MIN_MAX_BIT) { + _mesa_update_minmax(ctx, n, (CONST GLfloat (*)[4]) rgba); + } + +#if CHAN_TYPE != GL_FLOAT + if (transferOps & IMAGE_CLAMP_BIT) { + GLuint i; + for (i = 0; i < n; i++) { + rgba[i][RCOMP] = CLAMP(rgba[i][RCOMP], 0.0F, 1.0F); + rgba[i][GCOMP] = CLAMP(rgba[i][GCOMP], 0.0F, 1.0F); + rgba[i][BCOMP] = CLAMP(rgba[i][BCOMP], 0.0F, 1.0F); + rgba[i][ACOMP] = CLAMP(rgba[i][ACOMP], 0.0F, 1.0F); + } + } +#endif +} + + + /* * Used to pack an array [][4] of RGBA GLchan colors as specified * by the dstFormat, dstType and dstPacking. Used by glReadPixels, @@ -934,70 +1011,15 @@ _mesa_pack_rgba_span_float( GLcontext *ctx, DEFMARRAY(GLfloat, rgbaCopy, MAX_WIDTH, 4); /* mac 32k limitation */ CHECKARRAY(rgbaCopy, return); /* mac 32k limitation */ - for (i = 0; i < n; i++) { - rgbaCopy[i][0] = rgbaIn[i][0]; - rgbaCopy[i][1] = rgbaIn[i][1]; - rgbaCopy[i][2] = rgbaIn[i][2]; - rgbaCopy[i][3] = rgbaIn[i][3]; - } + _mesa_memcpy(rgbaCopy, rgbaIn, n * 4 * sizeof(GLfloat)); rgba = (GLfloat (*)[4]) rgbaCopy; - /* scale & bias */ - if (transferOps & IMAGE_SCALE_BIAS_BIT) { - _mesa_scale_and_bias_rgba(ctx, n, rgba, - ctx->Pixel.RedScale, ctx->Pixel.GreenScale, - ctx->Pixel.BlueScale, ctx->Pixel.AlphaScale, - ctx->Pixel.RedBias, ctx->Pixel.GreenBias, - ctx->Pixel.BlueBias, ctx->Pixel.AlphaBias); - } - /* color map lookup */ - if (transferOps & IMAGE_MAP_COLOR_BIT) { - _mesa_map_rgba( ctx, n, rgba ); - } - /* GL_COLOR_TABLE lookup */ - if (transferOps & IMAGE_COLOR_TABLE_BIT) { - _mesa_lookup_rgba_float(&ctx->ColorTable, n, rgba); - } - /* convolution */ - if (transferOps & IMAGE_CONVOLUTION_BIT) { - /* this has to be done in the calling code */ - } - /* GL_POST_CONVOLUTION_RED/GREEN/BLUE/ALPHA_SCALE/BIAS */ - if (transferOps & IMAGE_POST_CONVOLUTION_SCALE_BIAS) { - _mesa_scale_and_bias_rgba(ctx, n, rgba, - ctx->Pixel.PostConvolutionScale[RCOMP], - ctx->Pixel.PostConvolutionScale[GCOMP], - ctx->Pixel.PostConvolutionScale[BCOMP], - ctx->Pixel.PostConvolutionScale[ACOMP], - ctx->Pixel.PostConvolutionBias[RCOMP], - ctx->Pixel.PostConvolutionBias[GCOMP], - ctx->Pixel.PostConvolutionBias[BCOMP], - ctx->Pixel.PostConvolutionBias[ACOMP]); - } - /* GL_POST_CONVOLUTION_COLOR_TABLE lookup */ - if (transferOps & IMAGE_POST_CONVOLUTION_COLOR_TABLE_BIT) { - _mesa_lookup_rgba_float(&ctx->PostConvolutionColorTable, n, rgba); - } - /* color matrix transform */ - if (transferOps & IMAGE_COLOR_MATRIX_BIT) { - _mesa_transform_rgba(ctx, n, rgba); - } - /* GL_POST_COLOR_MATRIX_COLOR_TABLE lookup */ - if (transferOps & IMAGE_POST_COLOR_MATRIX_COLOR_TABLE_BIT) { - _mesa_lookup_rgba_float(&ctx->PostColorMatrixColorTable, n, rgba); - } - /* update histogram count */ - if (transferOps & IMAGE_HISTOGRAM_BIT) { - _mesa_update_histogram(ctx, n, (CONST GLfloat (*)[4]) rgba); - } - /* min/max here */ - if (transferOps & IMAGE_MIN_MAX_BIT) { - _mesa_update_minmax(ctx, n, (CONST GLfloat (*)[4]) rgba); - if (ctx->MinMax.Sink) { - UNDEFARRAY(rgbaCopy); /* mac 32k limitation */ - return; - } + _mesa_apply_rgba_transfer_ops(ctx, transferOps, n, rgba); + + if ((transferOps & IMAGE_MIN_MAX_BIT) && ctx->MinMax.Sink) { + UNDEFARRAY(rgbaCopy); /* mac 32k limitation */ + return; } UNDEFARRAY(rgbaCopy); /* mac 32k limitation */ } @@ -1008,7 +1030,6 @@ _mesa_pack_rgba_span_float( GLcontext *ctx, /* XXX clamp rgba to [0,1]? */ - if (dstFormat == GL_LUMINANCE || dstFormat == GL_LUMINANCE_ALPHA) { for (i = 0; i < n; i++) { GLfloat sum = rgba[i][RCOMP] + rgba[i][GCOMP] + rgba[i][BCOMP]; @@ -1919,11 +1940,11 @@ _mesa_pack_rgba_span_float( GLcontext *ctx, */ void _mesa_pack_rgba_span_chan( GLcontext *ctx, - GLuint n, CONST GLchan srcRgba[][4], - GLenum dstFormat, GLenum dstType, - GLvoid *dstAddr, - const struct gl_pixelstore_attrib *dstPacking, - GLuint transferOps) + GLuint n, CONST GLchan srcRgba[][4], + GLenum dstFormat, GLenum dstType, + GLvoid *dstAddr, + const struct gl_pixelstore_attrib *dstPacking, + GLuint transferOps) { ASSERT((ctx->NewState & _NEW_PIXEL) == 0 || transferOps == 0); @@ -2910,81 +2931,26 @@ _mesa_unpack_color_span_chan( GLcontext *ctx, /* Convert indexes to RGBA */ _mesa_map_ci_to_rgba(ctx, n, indexes, rgba); } + + /* Don't do RGBA scale/bias or RGBA->RGBA mapping if starting + * with color indexes. + */ + transferOps &= ~(IMAGE_SCALE_BIAS_BIT | IMAGE_MAP_COLOR_BIT); } else { + /* non-color index data */ extract_float_rgba(n, rgba, srcFormat, srcType, source, srcPacking->SwapBytes); - - /* scale and bias colors */ - if (transferOps & IMAGE_SCALE_BIAS_BIT) { - _mesa_scale_and_bias_rgba(ctx, n, rgba, - ctx->Pixel.RedScale, ctx->Pixel.GreenScale, - ctx->Pixel.BlueScale, ctx->Pixel.AlphaScale, - ctx->Pixel.RedBias, ctx->Pixel.GreenBias, - ctx->Pixel.BlueBias, ctx->Pixel.AlphaBias); - } - /* color map lookup */ - if (transferOps & IMAGE_MAP_COLOR_BIT) { - _mesa_map_rgba(ctx, n, rgba); - } } - if (transferOps) { - /* GL_COLOR_TABLE lookup */ - if (transferOps & IMAGE_COLOR_TABLE_BIT) { - _mesa_lookup_rgba_float(&ctx->ColorTable, n, rgba); - } - /* convolution */ - if (transferOps & IMAGE_CONVOLUTION_BIT) { - /* this has to be done in the calling code */ - } - /* GL_POST_CONVOLUTION_RED/GREEN/BLUE/ALPHA_SCALE/BIAS */ - if (transferOps & IMAGE_POST_CONVOLUTION_SCALE_BIAS) { - _mesa_scale_and_bias_rgba(ctx, n, rgba, - ctx->Pixel.PostConvolutionScale[RCOMP], - ctx->Pixel.PostConvolutionScale[GCOMP], - ctx->Pixel.PostConvolutionScale[BCOMP], - ctx->Pixel.PostConvolutionScale[ACOMP], - ctx->Pixel.PostConvolutionBias[RCOMP], - ctx->Pixel.PostConvolutionBias[GCOMP], - ctx->Pixel.PostConvolutionBias[BCOMP], - ctx->Pixel.PostConvolutionBias[ACOMP]); - } - /* GL_POST_CONVOLUTION_COLOR_TABLE lookup */ - if (transferOps & IMAGE_POST_CONVOLUTION_COLOR_TABLE_BIT) { - _mesa_lookup_rgba_float(&ctx->PostConvolutionColorTable, n, rgba); - } - /* color matrix transform */ - if (transferOps & IMAGE_COLOR_MATRIX_BIT) { - _mesa_transform_rgba(ctx, n, rgba); - } - /* GL_POST_COLOR_MATRIX_COLOR_TABLE lookup */ - if (transferOps & IMAGE_POST_COLOR_MATRIX_COLOR_TABLE_BIT) { - _mesa_lookup_rgba_float(&ctx->PostColorMatrixColorTable, n, rgba); - } - /* update histogram count */ - if (transferOps & IMAGE_HISTOGRAM_BIT) { - _mesa_update_histogram(ctx, n, (CONST GLfloat (*)[4]) rgba); - } - /* min/max here */ - if (transferOps & IMAGE_MIN_MAX_BIT) { - _mesa_update_minmax(ctx, n, (CONST GLfloat (*)[4]) rgba); - } - } - - /* clamp to [0,1] */ #if CHAN_TYPE != GL_FLOAT - { - GLuint i; - for (i = 0; i < n; i++) { - rgba[i][RCOMP] = CLAMP(rgba[i][RCOMP], 0.0F, 1.0F); - rgba[i][GCOMP] = CLAMP(rgba[i][GCOMP], 0.0F, 1.0F); - rgba[i][BCOMP] = CLAMP(rgba[i][BCOMP], 0.0F, 1.0F); - rgba[i][ACOMP] = CLAMP(rgba[i][ACOMP], 0.0F, 1.0F); - } - } + transferOps |= IMAGE_CLAMP_BIT; #endif + if (transferOps) { + _mesa_apply_rgba_transfer_ops(ctx, transferOps, n, rgba); + } + /* Now determine which color channels we need to produce. * And determine the dest index (offset) within each color tuple. */ @@ -3188,81 +3154,26 @@ _mesa_unpack_color_span_float( GLcontext *ctx, /* Convert indexes to RGBA */ _mesa_map_ci_to_rgba(ctx, n, indexes, rgba); } + + /* Don't do RGBA scale/bias or RGBA->RGBA mapping if starting + * with color indexes. + */ + transferOps &= ~(IMAGE_SCALE_BIAS_BIT | IMAGE_MAP_COLOR_BIT); } else { + /* non-color index data */ extract_float_rgba(n, rgba, srcFormat, srcType, source, srcPacking->SwapBytes); - - /* scale and bias colors */ - if (transferOps & IMAGE_SCALE_BIAS_BIT) { - _mesa_scale_and_bias_rgba(ctx, n, rgba, - ctx->Pixel.RedScale, ctx->Pixel.GreenScale, - ctx->Pixel.BlueScale, ctx->Pixel.AlphaScale, - ctx->Pixel.RedBias, ctx->Pixel.GreenBias, - ctx->Pixel.BlueBias, ctx->Pixel.AlphaBias); - } - /* color map lookup */ - if (transferOps & IMAGE_MAP_COLOR_BIT) { - _mesa_map_rgba(ctx, n, rgba); - } - } - - if (transferOps) { - /* GL_COLOR_TABLE lookup */ - if (transferOps & IMAGE_COLOR_TABLE_BIT) { - _mesa_lookup_rgba_float(&ctx->ColorTable, n, rgba); - } - /* convolution */ - if (transferOps & IMAGE_CONVOLUTION_BIT) { - /* XXX to do */ - } - /* GL_POST_CONVOLUTION_RED/GREEN/BLUE/ALPHA_SCALE/BIAS */ - if (transferOps & IMAGE_POST_CONVOLUTION_SCALE_BIAS) { - _mesa_scale_and_bias_rgba(ctx, n, rgba, - ctx->Pixel.PostConvolutionScale[RCOMP], - ctx->Pixel.PostConvolutionScale[GCOMP], - ctx->Pixel.PostConvolutionScale[BCOMP], - ctx->Pixel.PostConvolutionScale[ACOMP], - ctx->Pixel.PostConvolutionBias[RCOMP], - ctx->Pixel.PostConvolutionBias[GCOMP], - ctx->Pixel.PostConvolutionBias[BCOMP], - ctx->Pixel.PostConvolutionBias[ACOMP]); - } - /* GL_POST_CONVOLUTION_COLOR_TABLE lookup */ - if (transferOps & IMAGE_POST_CONVOLUTION_COLOR_TABLE_BIT) { - _mesa_lookup_rgba_float(&ctx->PostConvolutionColorTable, n, rgba); - } - /* color matrix transform */ - if (transferOps & IMAGE_COLOR_MATRIX_BIT) { - _mesa_transform_rgba(ctx, n, rgba); - } - /* GL_POST_COLOR_MATRIX_COLOR_TABLE lookup */ - if (transferOps & IMAGE_POST_COLOR_MATRIX_COLOR_TABLE_BIT) { - _mesa_lookup_rgba_float(&ctx->PostColorMatrixColorTable, n, rgba); - } - /* update histogram count */ - if (transferOps & IMAGE_HISTOGRAM_BIT) { - _mesa_update_histogram(ctx, n, (CONST GLfloat (*)[4]) rgba); - } - /* min/max here */ - if (transferOps & IMAGE_MIN_MAX_BIT) { - _mesa_update_minmax(ctx, n, (CONST GLfloat (*)[4]) rgba); - } } - /* clamp to [0,1] */ #if CHAN_TYPE != GL_FLOAT - if (clamp) { - GLuint i; - for (i = 0; i < n; i++) { - rgba[i][RCOMP] = CLAMP(rgba[i][RCOMP], 0.0F, 1.0F); - rgba[i][GCOMP] = CLAMP(rgba[i][GCOMP], 0.0F, 1.0F); - rgba[i][BCOMP] = CLAMP(rgba[i][BCOMP], 0.0F, 1.0F); - rgba[i][ACOMP] = CLAMP(rgba[i][ACOMP], 0.0F, 1.0F); - } - } + transferOps |= IMAGE_CLAMP_BIT; #endif + if (transferOps) { + _mesa_apply_rgba_transfer_ops(ctx, transferOps, n, rgba); + } + /* Now determine which color channels we need to produce. * And determine the dest index (offset) within each color tuple. */ |