mirror of
https://gitlab.freedesktop.org/mesa/mesa.git
synced 2026-05-04 07:38:10 +02:00
moved convolution API functions to convolve.c
This commit is contained in:
Brian Paul
parent
7e70874420
commit
147b08328a
2 changed files with 838 additions and 2 deletions
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@ -1,4 +1,4 @@
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/* $Id: convolve.c,v 1.3 2000/08/22 18:54:25 brianp Exp $ */
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/* $Id: convolve.c,v 1.4 2000/08/23 14:31:25 brianp Exp $ */
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/*
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* Mesa 3-D graphics library
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@ -39,10 +39,794 @@
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#include "glheader.h"
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#include "convolve.h"
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#include "context.h"
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#include "image.h"
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#include "span.h"
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#include "types.h"
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#endif
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/*
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* Given an internalFormat token passed to glConvolutionFilter
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* or glSeparableFilter, return the corresponding base format.
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* Return -1 if invalid token.
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*/
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static GLint
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base_filter_format( GLenum format )
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{
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switch (format) {
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case GL_ALPHA:
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case GL_ALPHA4:
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case GL_ALPHA8:
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case GL_ALPHA12:
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case GL_ALPHA16:
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return GL_ALPHA;
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case GL_LUMINANCE:
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case GL_LUMINANCE4:
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case GL_LUMINANCE8:
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case GL_LUMINANCE12:
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case GL_LUMINANCE16:
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return GL_LUMINANCE;
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case GL_LUMINANCE_ALPHA:
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case GL_LUMINANCE4_ALPHA4:
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case GL_LUMINANCE6_ALPHA2:
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case GL_LUMINANCE8_ALPHA8:
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case GL_LUMINANCE12_ALPHA4:
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case GL_LUMINANCE12_ALPHA12:
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case GL_LUMINANCE16_ALPHA16:
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return GL_LUMINANCE_ALPHA;
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case GL_INTENSITY:
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case GL_INTENSITY4:
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case GL_INTENSITY8:
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case GL_INTENSITY12:
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case GL_INTENSITY16:
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return GL_INTENSITY;
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case GL_RGB:
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case GL_R3_G3_B2:
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case GL_RGB4:
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case GL_RGB5:
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case GL_RGB8:
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case GL_RGB10:
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case GL_RGB12:
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case GL_RGB16:
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return GL_RGB;
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case 4:
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case GL_RGBA:
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case GL_RGBA2:
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case GL_RGBA4:
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case GL_RGB5_A1:
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case GL_RGBA8:
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case GL_RGB10_A2:
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case GL_RGBA12:
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case GL_RGBA16:
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return GL_RGBA;
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default:
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return -1; /* error */
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}
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}
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void
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_mesa_ConvolutionFilter1D(GLenum target, GLenum internalFormat, GLsizei width, GLenum format, GLenum type, const GLvoid *image)
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{
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GLenum baseFormat;
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GET_CURRENT_CONTEXT(ctx);
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ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glConvolutionFilter1D");
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if (target != GL_CONVOLUTION_1D) {
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gl_error(ctx, GL_INVALID_ENUM, "glConvolutionFilter1D(target)");
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return;
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}
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baseFormat = base_filter_format(internalFormat);
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if (baseFormat < 0 || baseFormat == GL_COLOR_INDEX) {
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gl_error(ctx, GL_INVALID_ENUM, "glConvolutionFilter1D(internalFormat)");
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return;
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}
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if (width < 0 || width > MAX_CONVOLUTION_WIDTH) {
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gl_error(ctx, GL_INVALID_VALUE, "glConvolutionFilter1D(width)");
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return;
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}
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if (!_mesa_is_legal_format_and_type(format, type) ||
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format == GL_COLOR_INDEX ||
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format == GL_STENCIL_INDEX ||
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format == GL_DEPTH_COMPONENT ||
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format == GL_INTENSITY ||
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type == GL_BITMAP) {
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gl_error(ctx, GL_INVALID_ENUM, "glConvolutionFilter1D(format or type)");
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return;
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}
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ctx->Convolution1D.Format = format;
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ctx->Convolution1D.InternalFormat = internalFormat;
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ctx->Convolution1D.Width = width;
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ctx->Convolution1D.Height = 1;
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/* unpack filter image */
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_mesa_unpack_float_color_span(ctx, width, GL_RGBA,
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ctx->Convolution1D.Filter,
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format, type, image, &ctx->Unpack,
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0, GL_FALSE);
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/* apply scale and bias */
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{
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const GLfloat *scale = ctx->Pixel.ConvolutionFilterScale[0];
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const GLfloat *bias = ctx->Pixel.ConvolutionFilterBias[0];
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GLint i;
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for (i = 0; i < width; i++) {
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GLfloat r = ctx->Convolution1D.Filter[i * 4 + 0];
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GLfloat g = ctx->Convolution1D.Filter[i * 4 + 1];
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GLfloat b = ctx->Convolution1D.Filter[i * 4 + 2];
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GLfloat a = ctx->Convolution1D.Filter[i * 4 + 3];
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r = r * scale[0] + bias[0];
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g = g * scale[1] + bias[1];
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b = b * scale[2] + bias[2];
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a = a * scale[3] + bias[3];
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ctx->Convolution1D.Filter[i * 4 + 0] = r;
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ctx->Convolution1D.Filter[i * 4 + 1] = g;
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ctx->Convolution1D.Filter[i * 4 + 2] = b;
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ctx->Convolution1D.Filter[i * 4 + 3] = a;
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}
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}
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}
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void
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_mesa_ConvolutionFilter2D(GLenum target, GLenum internalFormat, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *image)
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{
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GLenum baseFormat;
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GLint i, components;
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GET_CURRENT_CONTEXT(ctx);
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ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glConvolutionFilter2D");
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if (target != GL_CONVOLUTION_2D) {
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gl_error(ctx, GL_INVALID_ENUM, "glConvolutionFilter2D(target)");
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return;
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}
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baseFormat = base_filter_format(internalFormat);
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if (baseFormat < 0 || baseFormat == GL_COLOR_INDEX) {
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gl_error(ctx, GL_INVALID_ENUM, "glConvolutionFilter2D(internalFormat)");
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return;
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}
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if (width < 0 || width > MAX_CONVOLUTION_WIDTH) {
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gl_error(ctx, GL_INVALID_VALUE, "glConvolutionFilter2D(width)");
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return;
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}
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if (height < 0 || height > MAX_CONVOLUTION_HEIGHT) {
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gl_error(ctx, GL_INVALID_VALUE, "glConvolutionFilter2D(height)");
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return;
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}
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if (!_mesa_is_legal_format_and_type(format, type) ||
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format == GL_COLOR_INDEX ||
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format == GL_STENCIL_INDEX ||
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format == GL_DEPTH_COMPONENT ||
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format == GL_INTENSITY ||
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type == GL_BITMAP) {
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gl_error(ctx, GL_INVALID_ENUM, "glConvolutionFilter2D(format or type)");
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return;
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}
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components = _mesa_components_in_format(format);
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assert(components > 0); /* this should have been caught earlier */
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ctx->Convolution2D.Format = format;
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ctx->Convolution2D.InternalFormat = internalFormat;
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ctx->Convolution2D.Width = width;
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ctx->Convolution2D.Height = height;
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/* Unpack filter image. We always store filters in RGBA format. */
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for (i = 0; i < height; i++) {
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const GLvoid *src = _mesa_image_address(&ctx->Unpack, image, width,
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height, format, type, 0, i, 0);
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GLfloat *dst = ctx->Convolution2D.Filter + i * width * 4;
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_mesa_unpack_float_color_span(ctx, width, GL_RGBA, dst,
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format, type, src, &ctx->Unpack,
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0, GL_FALSE);
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}
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/* apply scale and bias */
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{
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const GLfloat *scale = ctx->Pixel.ConvolutionFilterScale[1];
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const GLfloat *bias = ctx->Pixel.ConvolutionFilterBias[1];
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for (i = 0; i < width * height * 4; i++) {
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GLfloat r = ctx->Convolution2D.Filter[i * 4 + 0];
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GLfloat g = ctx->Convolution2D.Filter[i * 4 + 1];
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GLfloat b = ctx->Convolution2D.Filter[i * 4 + 2];
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GLfloat a = ctx->Convolution2D.Filter[i * 4 + 3];
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r = r * scale[0] + bias[0];
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g = g * scale[1] + bias[1];
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b = b * scale[2] + bias[2];
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a = a * scale[3] + bias[3];
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ctx->Convolution2D.Filter[i * 4 + 0] = r;
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ctx->Convolution2D.Filter[i * 4 + 1] = g;
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ctx->Convolution2D.Filter[i * 4 + 2] = b;
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ctx->Convolution2D.Filter[i * 4 + 3] = a;
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}
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}
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}
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void
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_mesa_ConvolutionParameterf(GLenum target, GLenum pname, GLfloat param)
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{
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GET_CURRENT_CONTEXT(ctx);
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GLuint c;
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ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glConvolutionParameterf");
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switch (target) {
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case GL_CONVOLUTION_1D:
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c = 0;
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break;
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case GL_CONVOLUTION_2D:
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c = 1;
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break;
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case GL_SEPARABLE_2D:
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c = 2;
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break;
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default:
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gl_error(ctx, GL_INVALID_ENUM, "glConvolutionParameterf(target)");
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return;
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}
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switch (pname) {
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case GL_CONVOLUTION_BORDER_MODE:
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if (param == (GLfloat) GL_REDUCE ||
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param == (GLfloat) GL_CONSTANT_BORDER ||
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param == (GLfloat) GL_REPLICATE_BORDER) {
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ctx->Pixel.ConvolutionBorderMode[c] = (GLenum) param;
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}
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else {
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gl_error(ctx, GL_INVALID_ENUM, "glConvolutionParameterf(params)");
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return;
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}
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break;
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default:
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gl_error(ctx, GL_INVALID_ENUM, "glConvolutionParameterf(pname)");
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return;
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}
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}
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void
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_mesa_ConvolutionParameterfv(GLenum target, GLenum pname, const GLfloat *params)
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{
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GET_CURRENT_CONTEXT(ctx);
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struct gl_convolution_attrib *conv;
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GLuint c;
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ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glConvolutionParameterfv");
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switch (target) {
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case GL_CONVOLUTION_1D:
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c = 0;
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conv = &ctx->Convolution1D;
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break;
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case GL_CONVOLUTION_2D:
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c = 1;
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conv = &ctx->Convolution2D;
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break;
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case GL_SEPARABLE_2D:
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c = 2;
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conv = &ctx->Separable2D;
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break;
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default:
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gl_error(ctx, GL_INVALID_ENUM, "glConvolutionParameterfv(target)");
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return;
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}
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switch (pname) {
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case GL_CONVOLUTION_BORDER_COLOR:
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COPY_4V(ctx->Pixel.ConvolutionBorderColor[c], params);
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break;
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case GL_CONVOLUTION_BORDER_MODE:
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if (params[0] == (GLfloat) GL_REDUCE ||
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params[0] == (GLfloat) GL_CONSTANT_BORDER ||
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params[0] == (GLfloat) GL_REPLICATE_BORDER) {
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ctx->Pixel.ConvolutionBorderMode[c] = (GLenum) params[0];
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}
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else {
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gl_error(ctx, GL_INVALID_ENUM, "glConvolutionParameterfv(params)");
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return;
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}
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break;
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case GL_CONVOLUTION_FILTER_SCALE:
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COPY_4V(ctx->Pixel.ConvolutionFilterScale[c], params);
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break;
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case GL_CONVOLUTION_FILTER_BIAS:
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COPY_4V(ctx->Pixel.ConvolutionFilterBias[c], params);
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break;
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default:
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gl_error(ctx, GL_INVALID_ENUM, "glConvolutionParameterfv(pname)");
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return;
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}
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}
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void
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_mesa_ConvolutionParameteri(GLenum target, GLenum pname, GLint param)
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{
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GET_CURRENT_CONTEXT(ctx);
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GLuint c;
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ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glConvolutionParameteri");
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switch (target) {
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case GL_CONVOLUTION_1D:
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c = 0;
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break;
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case GL_CONVOLUTION_2D:
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c = 1;
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break;
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case GL_SEPARABLE_2D:
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c = 2;
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break;
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default:
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gl_error(ctx, GL_INVALID_ENUM, "glConvolutionParameteri(target)");
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return;
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}
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switch (pname) {
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case GL_CONVOLUTION_BORDER_MODE:
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if (param == (GLint) GL_REDUCE ||
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param == (GLint) GL_CONSTANT_BORDER ||
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param == (GLint) GL_REPLICATE_BORDER) {
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ctx->Pixel.ConvolutionBorderMode[c] = (GLenum) param;
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}
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else {
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gl_error(ctx, GL_INVALID_ENUM, "glConvolutionParameteri(params)");
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return;
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}
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break;
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default:
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gl_error(ctx, GL_INVALID_ENUM, "glConvolutionParameteri(pname)");
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return;
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}
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}
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void
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_mesa_ConvolutionParameteriv(GLenum target, GLenum pname, const GLint *params)
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{
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GET_CURRENT_CONTEXT(ctx);
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struct gl_convolution_attrib *conv;
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GLuint c;
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ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glConvolutionParameteriv");
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switch (target) {
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case GL_CONVOLUTION_1D:
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c = 0;
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conv = &ctx->Convolution1D;
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break;
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case GL_CONVOLUTION_2D:
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c = 1;
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conv = &ctx->Convolution2D;
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break;
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case GL_SEPARABLE_2D:
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c = 2;
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conv = &ctx->Separable2D;
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break;
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default:
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gl_error(ctx, GL_INVALID_ENUM, "glConvolutionParameteriv(target)");
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return;
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}
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switch (pname) {
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case GL_CONVOLUTION_BORDER_COLOR:
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ctx->Pixel.ConvolutionBorderColor[c][0] = INT_TO_FLOAT(params[0]);
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ctx->Pixel.ConvolutionBorderColor[c][1] = INT_TO_FLOAT(params[1]);
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ctx->Pixel.ConvolutionBorderColor[c][2] = INT_TO_FLOAT(params[2]);
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ctx->Pixel.ConvolutionBorderColor[c][3] = INT_TO_FLOAT(params[3]);
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break;
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case GL_CONVOLUTION_BORDER_MODE:
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if (params[0] == (GLint) GL_REDUCE ||
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params[0] == (GLint) GL_CONSTANT_BORDER ||
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params[0] == (GLint) GL_REPLICATE_BORDER) {
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ctx->Pixel.ConvolutionBorderMode[c] = (GLenum) params[0];
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}
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else {
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gl_error(ctx, GL_INVALID_ENUM, "glConvolutionParameteriv(params)");
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return;
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}
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break;
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case GL_CONVOLUTION_FILTER_SCALE:
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COPY_4V(ctx->Pixel.ConvolutionFilterScale[c], params);
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break;
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case GL_CONVOLUTION_FILTER_BIAS:
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COPY_4V(ctx->Pixel.ConvolutionFilterBias[c], params);
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break;
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default:
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gl_error(ctx, GL_INVALID_ENUM, "glConvolutionParameteriv(pname)");
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return;
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}
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}
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void
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_mesa_CopyConvolutionFilter1D(GLenum target, GLenum internalFormat, GLint x, GLint y, GLsizei width)
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{
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GLenum baseFormat;
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GLfloat rgba[MAX_CONVOLUTION_WIDTH][4];
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GET_CURRENT_CONTEXT(ctx);
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ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glCopyConvolutionFilter1D");
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if (target != GL_CONVOLUTION_1D) {
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gl_error(ctx, GL_INVALID_ENUM, "glCopyConvolutionFilter1D(target)");
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return;
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}
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baseFormat = base_filter_format(internalFormat);
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if (baseFormat < 0 || baseFormat == GL_COLOR_INDEX) {
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gl_error(ctx, GL_INVALID_ENUM, "glCopyConvolutionFilter1D(internalFormat)");
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return;
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}
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if (width < 0 || width > MAX_CONVOLUTION_WIDTH) {
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gl_error(ctx, GL_INVALID_VALUE, "glCopyConvolutionFilter1D(width)");
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return;
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}
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/* read pixels from framebuffer */
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gl_read_rgba_span(ctx, ctx->ReadBuffer, width, x, y, (GLubyte (*)[4]) rgba);
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/* store as convolution filter */
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_mesa_ConvolutionFilter1D(target, internalFormat, width,
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GL_RGBA, GL_UNSIGNED_BYTE, rgba);
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}
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void
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_mesa_CopyConvolutionFilter2D(GLenum target, GLenum internalFormat, GLint x, GLint y, GLsizei width, GLsizei height)
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{
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GLenum baseFormat;
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GLint i;
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struct gl_pixelstore_attrib packSave;
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GLfloat rgba[MAX_CONVOLUTION_HEIGHT][MAX_CONVOLUTION_WIDTH][4];
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GET_CURRENT_CONTEXT(ctx);
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ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glCopyConvolutionFilter2D");
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|
||||
if (target != GL_CONVOLUTION_2D) {
|
||||
gl_error(ctx, GL_INVALID_ENUM, "glCopyConvolutionFilter2D(target)");
|
||||
return;
|
||||
}
|
||||
|
||||
baseFormat = base_filter_format(internalFormat);
|
||||
if (baseFormat < 0 || baseFormat == GL_COLOR_INDEX) {
|
||||
gl_error(ctx, GL_INVALID_ENUM, "glCopyConvolutionFilter2D(internalFormat)");
|
||||
return;
|
||||
}
|
||||
|
||||
if (width < 0 || width > MAX_CONVOLUTION_WIDTH) {
|
||||
gl_error(ctx, GL_INVALID_VALUE, "glCopyConvolutionFilter2D(width)");
|
||||
return;
|
||||
}
|
||||
if (height < 0 || height > MAX_CONVOLUTION_HEIGHT) {
|
||||
gl_error(ctx, GL_INVALID_VALUE, "glCopyConvolutionFilter2D(height)");
|
||||
return;
|
||||
}
|
||||
|
||||
/* read pixels from framebuffer */
|
||||
for (i = 0; i < height; i++) {
|
||||
gl_read_rgba_span(ctx, ctx->ReadBuffer, width, x, y + i,
|
||||
(GLubyte (*)[4]) rgba[i]);
|
||||
}
|
||||
|
||||
/*
|
||||
* store as convolution filter
|
||||
*/
|
||||
packSave = ctx->Unpack; /* save pixel packing params */
|
||||
|
||||
ctx->Unpack.Alignment = 1;
|
||||
ctx->Unpack.RowLength = MAX_CONVOLUTION_WIDTH;
|
||||
ctx->Unpack.SkipPixels = 0;
|
||||
ctx->Unpack.SkipRows = 0;
|
||||
ctx->Unpack.ImageHeight = 0;
|
||||
ctx->Unpack.SkipImages = 0;
|
||||
ctx->Unpack.SwapBytes = GL_FALSE;
|
||||
ctx->Unpack.LsbFirst = GL_FALSE;
|
||||
|
||||
_mesa_ConvolutionFilter2D(target, internalFormat, width, height,
|
||||
GL_RGBA, GL_UNSIGNED_BYTE, rgba);
|
||||
|
||||
ctx->Unpack = packSave; /* restore pixel packing params */
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
_mesa_GetConvolutionFilter(GLenum target, GLenum format, GLenum type, GLvoid *image)
|
||||
{
|
||||
GET_CURRENT_CONTEXT(ctx);
|
||||
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glGetConvolutionFilter");
|
||||
|
||||
if (target != GL_CONVOLUTION_1D && target != GL_CONVOLUTION_2D) {
|
||||
gl_error(ctx, GL_INVALID_ENUM, "glGetConvolutionFilter(target)");
|
||||
return;
|
||||
}
|
||||
|
||||
if (!_mesa_is_legal_format_and_type(format, type) ||
|
||||
format == GL_COLOR_INDEX ||
|
||||
format == GL_STENCIL_INDEX ||
|
||||
format == GL_DEPTH_COMPONENT ||
|
||||
format == GL_INTENSITY ||
|
||||
type == GL_BITMAP) {
|
||||
gl_error(ctx, GL_INVALID_ENUM, "glGetConvolutionFilter(format or type)");
|
||||
return;
|
||||
}
|
||||
|
||||
(void) image;
|
||||
/* XXX store image */
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
_mesa_GetConvolutionParameterfv(GLenum target, GLenum pname, GLfloat *params)
|
||||
{
|
||||
GET_CURRENT_CONTEXT(ctx);
|
||||
const struct gl_convolution_attrib *conv;
|
||||
GLuint c;
|
||||
|
||||
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glGetConvolutionParameterfv");
|
||||
|
||||
switch (target) {
|
||||
case GL_CONVOLUTION_1D:
|
||||
c = 0;
|
||||
conv = &ctx->Convolution1D;
|
||||
break;
|
||||
case GL_CONVOLUTION_2D:
|
||||
c = 1;
|
||||
conv = &ctx->Convolution2D;
|
||||
break;
|
||||
case GL_SEPARABLE_2D:
|
||||
c = 2;
|
||||
conv = &ctx->Separable2D;
|
||||
break;
|
||||
default:
|
||||
gl_error(ctx, GL_INVALID_ENUM, "glGetConvolutionParameterfv(target)");
|
||||
return;
|
||||
}
|
||||
|
||||
switch (pname) {
|
||||
case GL_CONVOLUTION_BORDER_COLOR:
|
||||
COPY_4V(params, ctx->Pixel.ConvolutionBorderColor[c]);
|
||||
break;
|
||||
case GL_CONVOLUTION_BORDER_MODE:
|
||||
*params = (GLfloat) ctx->Pixel.ConvolutionBorderMode[c];
|
||||
break;
|
||||
case GL_CONVOLUTION_FILTER_SCALE:
|
||||
COPY_4V(params, ctx->Pixel.ConvolutionFilterScale[c]);
|
||||
break;
|
||||
case GL_CONVOLUTION_FILTER_BIAS:
|
||||
COPY_4V(params, ctx->Pixel.ConvolutionFilterBias[c]);
|
||||
break;
|
||||
case GL_CONVOLUTION_FORMAT:
|
||||
*params = (GLfloat) conv->Format;
|
||||
break;
|
||||
case GL_CONVOLUTION_WIDTH:
|
||||
*params = (GLfloat) conv->Width;
|
||||
break;
|
||||
case GL_CONVOLUTION_HEIGHT:
|
||||
*params = (GLfloat) conv->Height;
|
||||
break;
|
||||
case GL_MAX_CONVOLUTION_WIDTH:
|
||||
*params = (GLfloat) ctx->Const.MaxConvolutionWidth;
|
||||
break;
|
||||
case GL_MAX_CONVOLUTION_HEIGHT:
|
||||
*params = (GLfloat) ctx->Const.MaxConvolutionHeight;
|
||||
break;
|
||||
default:
|
||||
gl_error(ctx, GL_INVALID_ENUM, "glGetConvolutionParameterfv(pname)");
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
_mesa_GetConvolutionParameteriv(GLenum target, GLenum pname, GLint *params)
|
||||
{
|
||||
GET_CURRENT_CONTEXT(ctx);
|
||||
const struct gl_convolution_attrib *conv;
|
||||
GLuint c;
|
||||
|
||||
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glGetConvolutionParameteriv");
|
||||
|
||||
switch (target) {
|
||||
case GL_CONVOLUTION_1D:
|
||||
c = 0;
|
||||
conv = &ctx->Convolution1D;
|
||||
break;
|
||||
case GL_CONVOLUTION_2D:
|
||||
c = 1;
|
||||
conv = &ctx->Convolution2D;
|
||||
break;
|
||||
case GL_SEPARABLE_2D:
|
||||
c = 2;
|
||||
conv = &ctx->Separable2D;
|
||||
break;
|
||||
default:
|
||||
gl_error(ctx, GL_INVALID_ENUM, "glGetConvolutionParameteriv(target)");
|
||||
return;
|
||||
}
|
||||
|
||||
switch (pname) {
|
||||
case GL_CONVOLUTION_BORDER_COLOR:
|
||||
params[0] = FLOAT_TO_INT(ctx->Pixel.ConvolutionBorderColor[c][0]);
|
||||
params[1] = FLOAT_TO_INT(ctx->Pixel.ConvolutionBorderColor[c][1]);
|
||||
params[2] = FLOAT_TO_INT(ctx->Pixel.ConvolutionBorderColor[c][2]);
|
||||
params[3] = FLOAT_TO_INT(ctx->Pixel.ConvolutionBorderColor[c][3]);
|
||||
break;
|
||||
case GL_CONVOLUTION_BORDER_MODE:
|
||||
*params = (GLint) ctx->Pixel.ConvolutionBorderMode[c];
|
||||
break;
|
||||
case GL_CONVOLUTION_FILTER_SCALE:
|
||||
params[0] = (GLint) ctx->Pixel.ConvolutionFilterScale[c][0];
|
||||
params[1] = (GLint) ctx->Pixel.ConvolutionFilterScale[c][1];
|
||||
params[2] = (GLint) ctx->Pixel.ConvolutionFilterScale[c][2];
|
||||
params[3] = (GLint) ctx->Pixel.ConvolutionFilterScale[c][3];
|
||||
break;
|
||||
case GL_CONVOLUTION_FILTER_BIAS:
|
||||
params[0] = (GLint) ctx->Pixel.ConvolutionFilterBias[c][0];
|
||||
params[1] = (GLint) ctx->Pixel.ConvolutionFilterBias[c][1];
|
||||
params[2] = (GLint) ctx->Pixel.ConvolutionFilterBias[c][2];
|
||||
params[3] = (GLint) ctx->Pixel.ConvolutionFilterBias[c][3];
|
||||
break;
|
||||
case GL_CONVOLUTION_FORMAT:
|
||||
*params = (GLint) conv->Format;
|
||||
break;
|
||||
case GL_CONVOLUTION_WIDTH:
|
||||
*params = (GLint) conv->Width;
|
||||
break;
|
||||
case GL_CONVOLUTION_HEIGHT:
|
||||
*params = (GLint) conv->Height;
|
||||
break;
|
||||
case GL_MAX_CONVOLUTION_WIDTH:
|
||||
*params = (GLint) ctx->Const.MaxConvolutionWidth;
|
||||
break;
|
||||
case GL_MAX_CONVOLUTION_HEIGHT:
|
||||
*params = (GLint) ctx->Const.MaxConvolutionHeight;
|
||||
break;
|
||||
default:
|
||||
gl_error(ctx, GL_INVALID_ENUM, "glGetConvolutionParameteriv(pname)");
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
_mesa_GetSeparableFilter(GLenum target, GLenum format, GLenum type, GLvoid *row, GLvoid *column, GLvoid *span)
|
||||
{
|
||||
GET_CURRENT_CONTEXT(ctx);
|
||||
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glGetSeparableFilter");
|
||||
|
||||
if (target != GL_SEPARABLE_2D) {
|
||||
gl_error(ctx, GL_INVALID_ENUM, "glGetSeparableFilter(target)");
|
||||
return;
|
||||
}
|
||||
|
||||
if (!_mesa_is_legal_format_and_type(format, type) ||
|
||||
format == GL_COLOR_INDEX ||
|
||||
format == GL_STENCIL_INDEX ||
|
||||
format == GL_DEPTH_COMPONENT ||
|
||||
format == GL_INTENSITY ||
|
||||
type == GL_BITMAP) {
|
||||
gl_error(ctx, GL_INVALID_ENUM, "glGetConvolutionFilter(format or type)");
|
||||
return;
|
||||
}
|
||||
|
||||
/* XXX to do */
|
||||
(void) row;
|
||||
(void) column;
|
||||
(void) span;
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
_mesa_SeparableFilter2D(GLenum target, GLenum internalFormat, GLsizei width, GLsizei height, GLenum format, GLenum type, const GLvoid *row, const GLvoid *column)
|
||||
{
|
||||
const GLint colStart = MAX_CONVOLUTION_WIDTH * 4;
|
||||
GLenum baseFormat;
|
||||
GET_CURRENT_CONTEXT(ctx);
|
||||
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glSeparableFilter2D");
|
||||
|
||||
if (target != GL_SEPARABLE_2D) {
|
||||
gl_error(ctx, GL_INVALID_ENUM, "glSeparableFilter2D(target)");
|
||||
return;
|
||||
}
|
||||
|
||||
baseFormat = base_filter_format(internalFormat);
|
||||
if (baseFormat < 0 || baseFormat == GL_COLOR_INDEX) {
|
||||
gl_error(ctx, GL_INVALID_ENUM, "glSeparableFilter2D(internalFormat)");
|
||||
return;
|
||||
}
|
||||
|
||||
if (width < 0 || width > MAX_CONVOLUTION_WIDTH) {
|
||||
gl_error(ctx, GL_INVALID_VALUE, "glSeparableFilter2D(width)");
|
||||
return;
|
||||
}
|
||||
if (height < 0 || height > MAX_CONVOLUTION_HEIGHT) {
|
||||
gl_error(ctx, GL_INVALID_VALUE, "glSeparableFilter2D(height)");
|
||||
return;
|
||||
}
|
||||
|
||||
if (!_mesa_is_legal_format_and_type(format, type) ||
|
||||
format == GL_COLOR_INDEX ||
|
||||
format == GL_STENCIL_INDEX ||
|
||||
format == GL_DEPTH_COMPONENT ||
|
||||
format == GL_INTENSITY ||
|
||||
type == GL_BITMAP) {
|
||||
gl_error(ctx, GL_INVALID_ENUM, "glSeparableFilter2D(format or type)");
|
||||
return;
|
||||
}
|
||||
|
||||
ctx->Separable2D.Format = format;
|
||||
ctx->Separable2D.InternalFormat = internalFormat;
|
||||
ctx->Separable2D.Width = width;
|
||||
ctx->Separable2D.Height = height;
|
||||
|
||||
/* unpack row filter */
|
||||
_mesa_unpack_float_color_span(ctx, width, GL_RGBA,
|
||||
ctx->Separable2D.Filter,
|
||||
format, type, row, &ctx->Unpack,
|
||||
0, GL_FALSE);
|
||||
|
||||
/* apply scale and bias */
|
||||
{
|
||||
const GLfloat *scale = ctx->Pixel.ConvolutionFilterScale[2];
|
||||
const GLfloat *bias = ctx->Pixel.ConvolutionFilterBias[2];
|
||||
GLint i;
|
||||
for (i = 0; i < width; i++) {
|
||||
GLfloat r = ctx->Separable2D.Filter[i * 4 + 0];
|
||||
GLfloat g = ctx->Separable2D.Filter[i * 4 + 1];
|
||||
GLfloat b = ctx->Separable2D.Filter[i * 4 + 2];
|
||||
GLfloat a = ctx->Separable2D.Filter[i * 4 + 3];
|
||||
r = r * scale[0] + bias[0];
|
||||
g = g * scale[1] + bias[1];
|
||||
b = b * scale[2] + bias[2];
|
||||
a = a * scale[3] + bias[3];
|
||||
ctx->Separable2D.Filter[i * 4 + 0] = r;
|
||||
ctx->Separable2D.Filter[i * 4 + 1] = g;
|
||||
ctx->Separable2D.Filter[i * 4 + 2] = b;
|
||||
ctx->Separable2D.Filter[i * 4 + 3] = a;
|
||||
}
|
||||
}
|
||||
|
||||
/* unpack column filter */
|
||||
_mesa_unpack_float_color_span(ctx, width, GL_RGBA,
|
||||
&ctx->Separable2D.Filter[colStart],
|
||||
format, type, column, &ctx->Unpack,
|
||||
0, GL_FALSE);
|
||||
|
||||
/* apply scale and bias */
|
||||
{
|
||||
const GLfloat *scale = ctx->Pixel.ConvolutionFilterScale[2];
|
||||
const GLfloat *bias = ctx->Pixel.ConvolutionFilterBias[2];
|
||||
GLint i;
|
||||
for (i = 0; i < width; i++) {
|
||||
GLfloat r = ctx->Separable2D.Filter[i * 4 + 0 + colStart];
|
||||
GLfloat g = ctx->Separable2D.Filter[i * 4 + 1 + colStart];
|
||||
GLfloat b = ctx->Separable2D.Filter[i * 4 + 2 + colStart];
|
||||
GLfloat a = ctx->Separable2D.Filter[i * 4 + 3 + colStart];
|
||||
r = r * scale[0] + bias[0];
|
||||
g = g * scale[1] + bias[1];
|
||||
b = b * scale[2] + bias[2];
|
||||
a = a * scale[3] + bias[3];
|
||||
ctx->Separable2D.Filter[i * 4 + 0 + colStart] = r;
|
||||
ctx->Separable2D.Filter[i * 4 + 1 + colStart] = g;
|
||||
ctx->Separable2D.Filter[i * 4 + 2 + colStart] = b;
|
||||
ctx->Separable2D.Filter[i * 4 + 3 + colStart] = a;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/**********************************************************************/
|
||||
/*** image convolution functions ***/
|
||||
/**********************************************************************/
|
||||
|
||||
static void
|
||||
convolve_1d_reduce(GLint srcWidth, const GLfloat src[][4],
|
||||
GLint filterWidth, const GLfloat filter[][4],
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
/* $Id: convolve.h,v 1.1 2000/08/21 14:24:31 brianp Exp $ */
|
||||
/* $Id: convolve.h,v 1.2 2000/08/23 14:31:25 brianp Exp $ */
|
||||
|
||||
/*
|
||||
* Mesa 3-D graphics library
|
||||
|
|
@ -32,6 +32,58 @@
|
|||
#include "types.h"
|
||||
|
||||
|
||||
extern void
|
||||
_mesa_ConvolutionFilter1D(GLenum target, GLenum internalformat, GLsizei width,
|
||||
GLenum format, GLenum type, const GLvoid *image);
|
||||
|
||||
extern void
|
||||
_mesa_ConvolutionFilter2D(GLenum target, GLenum internalformat, GLsizei width,
|
||||
GLsizei height, GLenum format, GLenum type,
|
||||
const GLvoid *image);
|
||||
|
||||
extern void
|
||||
_mesa_ConvolutionParameterf(GLenum target, GLenum pname, GLfloat params);
|
||||
|
||||
extern void
|
||||
_mesa_ConvolutionParameterfv(GLenum target, GLenum pname,
|
||||
const GLfloat *params);
|
||||
|
||||
extern void
|
||||
_mesa_ConvolutionParameteri(GLenum target, GLenum pname, GLint params);
|
||||
|
||||
extern void
|
||||
_mesa_ConvolutionParameteriv(GLenum target, GLenum pname, const GLint *params);
|
||||
|
||||
extern void
|
||||
_mesa_CopyConvolutionFilter1D(GLenum target, GLenum internalformat,
|
||||
GLint x, GLint y, GLsizei width);
|
||||
|
||||
extern void
|
||||
_mesa_CopyConvolutionFilter2D(GLenum target, GLenum internalformat,
|
||||
GLint x, GLint y, GLsizei width, GLsizei height);
|
||||
|
||||
extern void
|
||||
_mesa_GetConvolutionFilter(GLenum target, GLenum format, GLenum type,
|
||||
GLvoid *image);
|
||||
|
||||
extern void
|
||||
_mesa_GetConvolutionParameterfv(GLenum target, GLenum pname, GLfloat *params);
|
||||
|
||||
extern void
|
||||
_mesa_GetConvolutionParameteriv(GLenum target, GLenum pname, GLint *params);
|
||||
|
||||
extern void
|
||||
_mesa_GetSeparableFilter(GLenum target, GLenum format, GLenum type,
|
||||
GLvoid *row, GLvoid *column, GLvoid *span);
|
||||
|
||||
extern void
|
||||
_mesa_SeparableFilter2D(GLenum target, GLenum internalformat,
|
||||
GLsizei width, GLsizei height,
|
||||
GLenum format, GLenum type,
|
||||
const GLvoid *row, const GLvoid *column);
|
||||
|
||||
|
||||
|
||||
extern void
|
||||
_mesa_convolve_1d_image(const GLcontext *ctx, GLsizei *width,
|
||||
const GLfloat *srcImage, GLfloat *dstImage);
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue