-/* $Id: convolve.c,v 1.16 2000/12/10 19:23:19 brianp Exp $ */
+/* $Id: convolve.c,v 1.24 2001/05/09 22:24:22 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.5
*
- * Copyright (C) 1999-2000 Brian Paul All Rights Reserved.
+ * Copyright (C) 1999-2001 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"),
{
GLenum baseFormat;
GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glConvolutionFilter1D");
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
if (target != GL_CONVOLUTION_1D) {
- gl_error(ctx, GL_INVALID_ENUM, "glConvolutionFilter1D(target)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glConvolutionFilter1D(target)");
return;
}
baseFormat = base_filter_format(internalFormat);
if (baseFormat < 0 || baseFormat == GL_COLOR_INDEX) {
- gl_error(ctx, GL_INVALID_ENUM, "glConvolutionFilter1D(internalFormat)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glConvolutionFilter1D(internalFormat)");
return;
}
if (width < 0 || width > MAX_CONVOLUTION_WIDTH) {
- gl_error(ctx, GL_INVALID_VALUE, "glConvolutionFilter1D(width)");
+ _mesa_error(ctx, GL_INVALID_VALUE, "glConvolutionFilter1D(width)");
return;
}
if (!_mesa_is_legal_format_and_type(format, type)) {
- gl_error(ctx, GL_INVALID_OPERATION, "glConvolutionFilter1D(format or type)");
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glConvolutionFilter1D(format or type)");
return;
}
format == GL_DEPTH_COMPONENT ||
format == GL_INTENSITY ||
type == GL_BITMAP) {
- gl_error(ctx, GL_INVALID_ENUM, "glConvolutionFilter1D(format or type)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glConvolutionFilter1D(format or type)");
return;
}
GLenum baseFormat;
GLint i, components;
GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glConvolutionFilter2D");
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
if (target != GL_CONVOLUTION_2D) {
- gl_error(ctx, GL_INVALID_ENUM, "glConvolutionFilter2D(target)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glConvolutionFilter2D(target)");
return;
}
baseFormat = base_filter_format(internalFormat);
if (baseFormat < 0 || baseFormat == GL_COLOR_INDEX) {
- gl_error(ctx, GL_INVALID_ENUM, "glConvolutionFilter2D(internalFormat)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glConvolutionFilter2D(internalFormat)");
return;
}
if (width < 0 || width > MAX_CONVOLUTION_WIDTH) {
- gl_error(ctx, GL_INVALID_VALUE, "glConvolutionFilter2D(width)");
+ _mesa_error(ctx, GL_INVALID_VALUE, "glConvolutionFilter2D(width)");
return;
}
if (height < 0 || height > MAX_CONVOLUTION_HEIGHT) {
- gl_error(ctx, GL_INVALID_VALUE, "glConvolutionFilter2D(height)");
+ _mesa_error(ctx, GL_INVALID_VALUE, "glConvolutionFilter2D(height)");
return;
}
if (!_mesa_is_legal_format_and_type(format, type)) {
- gl_error(ctx, GL_INVALID_OPERATION, "glConvolutionFilter2D(format or type)");
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glConvolutionFilter2D(format or type)");
return;
}
if (format == GL_COLOR_INDEX ||
format == GL_DEPTH_COMPONENT ||
format == GL_INTENSITY ||
type == GL_BITMAP) {
- gl_error(ctx, GL_INVALID_ENUM, "glConvolutionFilter2D(format or type)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glConvolutionFilter2D(format or type)");
return;
}
{
const GLfloat *scale = ctx->Pixel.ConvolutionFilterScale[1];
const GLfloat *bias = ctx->Pixel.ConvolutionFilterBias[1];
- for (i = 0; i < width * height * 4; i++) {
+ for (i = 0; i < width * height; i++) {
GLfloat r = ctx->Convolution2D.Filter[i * 4 + 0];
GLfloat g = ctx->Convolution2D.Filter[i * 4 + 1];
GLfloat b = ctx->Convolution2D.Filter[i * 4 + 2];
{
GET_CURRENT_CONTEXT(ctx);
GLuint c;
-
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glConvolutionParameterf");
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
switch (target) {
case GL_CONVOLUTION_1D:
c = 2;
break;
default:
- gl_error(ctx, GL_INVALID_ENUM, "glConvolutionParameterf(target)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glConvolutionParameterf(target)");
return;
}
ctx->Pixel.ConvolutionBorderMode[c] = (GLenum) param;
}
else {
- gl_error(ctx, GL_INVALID_ENUM, "glConvolutionParameterf(params)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glConvolutionParameterf(params)");
return;
}
break;
default:
- gl_error(ctx, GL_INVALID_ENUM, "glConvolutionParameterf(pname)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glConvolutionParameterf(pname)");
return;
}
GET_CURRENT_CONTEXT(ctx);
struct gl_convolution_attrib *conv;
GLuint c;
-
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glConvolutionParameterfv");
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
switch (target) {
case GL_CONVOLUTION_1D:
conv = &ctx->Separable2D;
break;
default:
- gl_error(ctx, GL_INVALID_ENUM, "glConvolutionParameterfv(target)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glConvolutionParameterfv(target)");
return;
}
ctx->Pixel.ConvolutionBorderMode[c] = (GLenum) params[0];
}
else {
- gl_error(ctx, GL_INVALID_ENUM, "glConvolutionParameterfv(params)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glConvolutionParameterfv(params)");
return;
}
break;
COPY_4V(ctx->Pixel.ConvolutionFilterBias[c], params);
break;
default:
- gl_error(ctx, GL_INVALID_ENUM, "glConvolutionParameterfv(pname)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glConvolutionParameterfv(pname)");
return;
}
{
GET_CURRENT_CONTEXT(ctx);
GLuint c;
-
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glConvolutionParameteri");
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
switch (target) {
case GL_CONVOLUTION_1D:
c = 2;
break;
default:
- gl_error(ctx, GL_INVALID_ENUM, "glConvolutionParameteri(target)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glConvolutionParameteri(target)");
return;
}
ctx->Pixel.ConvolutionBorderMode[c] = (GLenum) param;
}
else {
- gl_error(ctx, GL_INVALID_ENUM, "glConvolutionParameteri(params)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glConvolutionParameteri(params)");
return;
}
break;
default:
- gl_error(ctx, GL_INVALID_ENUM, "glConvolutionParameteri(pname)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glConvolutionParameteri(pname)");
return;
}
GET_CURRENT_CONTEXT(ctx);
struct gl_convolution_attrib *conv;
GLuint c;
-
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glConvolutionParameteriv");
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
switch (target) {
case GL_CONVOLUTION_1D:
conv = &ctx->Separable2D;
break;
default:
- gl_error(ctx, GL_INVALID_ENUM, "glConvolutionParameteriv(target)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glConvolutionParameteriv(target)");
return;
}
ctx->Pixel.ConvolutionBorderMode[c] = (GLenum) params[0];
}
else {
- gl_error(ctx, GL_INVALID_ENUM, "glConvolutionParameteriv(params)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glConvolutionParameteriv(params)");
return;
}
break;
COPY_4V(ctx->Pixel.ConvolutionFilterBias[c], params);
break;
default:
- gl_error(ctx, GL_INVALID_ENUM, "glConvolutionParameteriv(pname)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glConvolutionParameteriv(pname)");
return;
}
_mesa_CopyConvolutionFilter1D(GLenum target, GLenum internalFormat, GLint x, GLint y, GLsizei width)
{
GLenum baseFormat;
- GLchan rgba[MAX_CONVOLUTION_WIDTH][4];
GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glCopyConvolutionFilter1D");
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
if (target != GL_CONVOLUTION_1D) {
- gl_error(ctx, GL_INVALID_ENUM, "glCopyConvolutionFilter1D(target)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glCopyConvolutionFilter1D(target)");
return;
}
baseFormat = base_filter_format(internalFormat);
if (baseFormat < 0 || baseFormat == GL_COLOR_INDEX) {
- gl_error(ctx, GL_INVALID_ENUM, "glCopyConvolutionFilter1D(internalFormat)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glCopyConvolutionFilter1D(internalFormat)");
return;
}
if (width < 0 || width > MAX_CONVOLUTION_WIDTH) {
- gl_error(ctx, GL_INVALID_VALUE, "glCopyConvolutionFilter1D(width)");
+ _mesa_error(ctx, GL_INVALID_VALUE, "glCopyConvolutionFilter1D(width)");
return;
}
- /* read pixels from framebuffer */
- RENDER_START(ctx);
- gl_read_rgba_span(ctx, ctx->ReadBuffer, width, x, y, (GLchan (*)[4]) rgba);
- RENDER_FINISH(ctx);
-
- /* store as convolution filter */
- _mesa_ConvolutionFilter1D(target, internalFormat, width,
- GL_RGBA, CHAN_TYPE, rgba);
+ ctx->Driver.CopyConvolutionFilter1D( ctx, target,
+ internalFormat, x, y, width);
}
_mesa_CopyConvolutionFilter2D(GLenum target, GLenum internalFormat, GLint x, GLint y, GLsizei width, GLsizei height)
{
GLenum baseFormat;
- GLint i;
- struct gl_pixelstore_attrib packSave;
- GLchan rgba[MAX_CONVOLUTION_HEIGHT][MAX_CONVOLUTION_WIDTH][4];
GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glCopyConvolutionFilter2D");
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
if (target != GL_CONVOLUTION_2D) {
- gl_error(ctx, GL_INVALID_ENUM, "glCopyConvolutionFilter2D(target)");
+ _mesa_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)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glCopyConvolutionFilter2D(internalFormat)");
return;
}
if (width < 0 || width > MAX_CONVOLUTION_WIDTH) {
- gl_error(ctx, GL_INVALID_VALUE, "glCopyConvolutionFilter2D(width)");
+ _mesa_error(ctx, GL_INVALID_VALUE, "glCopyConvolutionFilter2D(width)");
return;
}
if (height < 0 || height > MAX_CONVOLUTION_HEIGHT) {
- gl_error(ctx, GL_INVALID_VALUE, "glCopyConvolutionFilter2D(height)");
+ _mesa_error(ctx, GL_INVALID_VALUE, "glCopyConvolutionFilter2D(height)");
return;
}
- /* read pixels from framebuffer */
- RENDER_START(ctx);
- for (i = 0; i < height; i++) {
- gl_read_rgba_span(ctx, ctx->ReadBuffer, width, x, y + i,
- (GLchan (*)[4]) rgba[i]);
- }
- RENDER_FINISH(ctx);
-
- /*
- * 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;
- ctx->NewState |= _NEW_PACKUNPACK;
-
- _mesa_ConvolutionFilter2D(target, internalFormat, width, height,
- GL_RGBA, CHAN_TYPE, rgba);
-
- ctx->Unpack = packSave; /* restore pixel packing params */
- ctx->NewState |= _NEW_PACKUNPACK;
+ ctx->Driver.CopyConvolutionFilter2D( ctx, target, internalFormat, x, y,
+ width, height );
+
}
_mesa_GetConvolutionFilter(GLenum target, GLenum format, GLenum type, GLvoid *image)
{
const struct gl_convolution_attrib *filter;
- GLint row;
+ GLuint row;
GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glGetConvolutionFilter");
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
if (ctx->NewState) {
- gl_update_state(ctx);
+ _mesa_update_state(ctx);
}
if (!_mesa_is_legal_format_and_type(format, type)) {
- gl_error(ctx, GL_INVALID_OPERATION, "glGetConvolutionFilter(format or type)");
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glGetConvolutionFilter(format or type)");
return;
}
format == GL_DEPTH_COMPONENT ||
format == GL_INTENSITY ||
type == GL_BITMAP) {
- gl_error(ctx, GL_INVALID_ENUM, "glGetConvolutionFilter(format or type)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetConvolutionFilter(format or type)");
return;
}
filter = &(ctx->Convolution2D);
break;
default:
- gl_error(ctx, GL_INVALID_ENUM, "glGetConvolutionFilter(target)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetConvolutionFilter(target)");
return;
}
GET_CURRENT_CONTEXT(ctx);
const struct gl_convolution_attrib *conv;
GLuint c;
-
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glGetConvolutionParameterfv");
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
switch (target) {
case GL_CONVOLUTION_1D:
conv = &ctx->Separable2D;
break;
default:
- gl_error(ctx, GL_INVALID_ENUM, "glGetConvolutionParameterfv(target)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetConvolutionParameterfv(target)");
return;
}
*params = (GLfloat) ctx->Const.MaxConvolutionHeight;
break;
default:
- gl_error(ctx, GL_INVALID_ENUM, "glGetConvolutionParameterfv(pname)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetConvolutionParameterfv(pname)");
return;
}
}
GET_CURRENT_CONTEXT(ctx);
const struct gl_convolution_attrib *conv;
GLuint c;
-
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glGetConvolutionParameteriv");
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
switch (target) {
case GL_CONVOLUTION_1D:
conv = &ctx->Separable2D;
break;
default:
- gl_error(ctx, GL_INVALID_ENUM, "glGetConvolutionParameteriv(target)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetConvolutionParameteriv(target)");
return;
}
*params = (GLint) ctx->Const.MaxConvolutionHeight;
break;
default:
- gl_error(ctx, GL_INVALID_ENUM, "glGetConvolutionParameteriv(pname)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetConvolutionParameteriv(pname)");
return;
}
}
const GLint colStart = MAX_CONVOLUTION_WIDTH * 4;
const struct gl_convolution_attrib *filter;
GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glGetSeparableFilter");
+ ASSERT_OUTSIDE_BEGIN_END(ctx);
if (ctx->NewState) {
- gl_update_state(ctx);
+ _mesa_update_state(ctx);
}
if (target != GL_SEPARABLE_2D) {
- gl_error(ctx, GL_INVALID_ENUM, "glGetSeparableFilter(target)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetSeparableFilter(target)");
return;
}
if (!_mesa_is_legal_format_and_type(format, type)) {
- gl_error(ctx, GL_INVALID_OPERATION, "glGetConvolutionFilter(format or type)");
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glGetConvolutionFilter(format or type)");
return;
}
format == GL_DEPTH_COMPONENT ||
format == GL_INTENSITY ||
type == GL_BITMAP) {
- gl_error(ctx, GL_INVALID_ENUM, "glGetConvolutionFilter(format or type)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glGetConvolutionFilter(format or type)");
return;
}
const GLint colStart = MAX_CONVOLUTION_WIDTH * 4;
GLenum baseFormat;
GET_CURRENT_CONTEXT(ctx);
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glSeparableFilter2D");
+ ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
if (target != GL_SEPARABLE_2D) {
- gl_error(ctx, GL_INVALID_ENUM, "glSeparableFilter2D(target)");
+ _mesa_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)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glSeparableFilter2D(internalFormat)");
return;
}
if (width < 0 || width > MAX_CONVOLUTION_WIDTH) {
- gl_error(ctx, GL_INVALID_VALUE, "glSeparableFilter2D(width)");
+ _mesa_error(ctx, GL_INVALID_VALUE, "glSeparableFilter2D(width)");
return;
}
if (height < 0 || height > MAX_CONVOLUTION_HEIGHT) {
- gl_error(ctx, GL_INVALID_VALUE, "glSeparableFilter2D(height)");
+ _mesa_error(ctx, GL_INVALID_VALUE, "glSeparableFilter2D(height)");
return;
}
if (!_mesa_is_legal_format_and_type(format, type)) {
- gl_error(ctx, GL_INVALID_OPERATION, "glSeparableFilter2D(format or type)");
+ _mesa_error(ctx, GL_INVALID_OPERATION, "glSeparableFilter2D(format or type)");
return;
}
format == GL_DEPTH_COMPONENT ||
format == GL_INTENSITY ||
type == GL_BITMAP) {
- gl_error(ctx, GL_INVALID_ENUM, "glSeparableFilter2D(format or type)");
+ _mesa_error(ctx, GL_INVALID_ENUM, "glSeparableFilter2D(format or type)");
return;
}
;
}
}
+
+
+
+/*
+ * This function computes an image's size after convolution.
+ * If the convolution border mode is GL_REDUCE, the post-convolution
+ * image will be smaller than the original.
+ */
+void
+_mesa_adjust_image_for_convolution(const GLcontext *ctx, GLuint dimensions,
+ GLsizei *width, GLsizei *height)
+{
+ if (ctx->Pixel.Convolution1DEnabled
+ && dimensions == 1
+ && ctx->Pixel.ConvolutionBorderMode[0] == GL_REDUCE) {
+ *width = *width - (MAX2(ctx->Convolution1D.Width, 1) - 1);
+ }
+ else if (ctx->Pixel.Convolution2DEnabled
+ && dimensions > 1
+ && ctx->Pixel.ConvolutionBorderMode[1] == GL_REDUCE) {
+ *width = *width - (MAX2(ctx->Convolution2D.Width, 1) - 1);
+ *height = *height - (MAX2(ctx->Convolution2D.Height, 1) - 1);
+ }
+ else if (ctx->Pixel.Separable2DEnabled
+ && dimensions > 1
+ && ctx->Pixel.ConvolutionBorderMode[2] == GL_REDUCE) {
+ *width = *width - (MAX2(ctx->Separable2D.Width, 1) - 1);
+ *height = *height - (MAX2(ctx->Separable2D.Height, 1) - 1);
+ }
+}
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