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xserver-multidpi/hw/xquartz/GL/capabilities.c
Keith Packard 9838b7032e Introduce a consistent coding style 
This is strictly the application of the script 'x-indent-all.sh'
from util/modular. Compared to the patch that Daniel posted in
January, I've added a few indent flags:

	-bap
	-psl
	-T PrivatePtr
	-T pmWait
	-T _XFUNCPROTOBEGIN
	-T _XFUNCPROTOEND
	-T _X_EXPORT

The typedefs were needed to make the output of sdksyms.sh match the
previous output, otherwise, the code is formatted badly enough that
sdksyms.sh generates incorrect output.

The generated code was compared with the previous version and found to
be essentially identical -- "assert" line numbers and BUILD_TIME were
the only differences found.

The comparison was done with this script:

dir1=$1
dir2=$2

for dir in $dir1 $dir2; do
	(cd $dir && find . -name '*.o' | while read file; do
		dir=`dirname $file`
		base=`basename $file .o`
		dump=$dir/$base.dump
		objdump -d $file > $dump
	done)
done

find $dir1 -name '*.dump' | while read dump; do
	otherdump=`echo $dump | sed "s;$dir1;$dir2;"`
	diff -u $dump $otherdump
done

Signed-off-by: Keith Packard <keithp@keithp.com>
Acked-by: Daniel Stone <daniel@fooishbar.org>
Acked-by: Alan Coopersmith <alan.coopersmith@oracle.com>
2012-03-21 13:54:42 -07:00

566 lines
13 KiB
C
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/*
* Copyright (c) 2008 Apple Inc.
*
* 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
* THE ABOVE LISTED COPYRIGHT HOLDER(S) 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 <stdio.h>
#include <stdlib.h>
#include <assert.h>
#define Cursor Mac_Cursor
#define BOOL Mac_BOOL
#include <OpenGL/OpenGL.h>
#include <OpenGL/gl.h>
#include <OpenGL/glu.h>
#include <OpenGL/glext.h>
#include <ApplicationServices/ApplicationServices.h>
#undef Cursor
#undef BOOL
#include "capabilities.h"
#include "os.h"
static void
handleBufferModes(struct glCapabilitiesConfig *c, GLint bufferModes)
{
if (bufferModes & kCGLStereoscopicBit) {
c->stereo = true;
}
if (bufferModes & kCGLDoubleBufferBit) {
c->buffers = 2;
}
else {
c->buffers = 1;
}
}
static void
handleStencilModes(struct glCapabilitiesConfig *c, GLint smodes)
{
int offset = 0;
if (kCGL0Bit & smodes)
c->stencil_bit_depths[offset++] = 0;
if (kCGL1Bit & smodes)
c->stencil_bit_depths[offset++] = 1;
if (kCGL2Bit & smodes)
c->stencil_bit_depths[offset++] = 2;
if (kCGL3Bit & smodes)
c->stencil_bit_depths[offset++] = 3;
if (kCGL4Bit & smodes)
c->stencil_bit_depths[offset++] = 4;
if (kCGL5Bit & smodes)
c->stencil_bit_depths[offset++] = 5;
if (kCGL6Bit & smodes)
c->stencil_bit_depths[offset++] = 6;
if (kCGL8Bit & smodes)
c->stencil_bit_depths[offset++] = 8;
if (kCGL10Bit & smodes)
c->stencil_bit_depths[offset++] = 10;
if (kCGL12Bit & smodes)
c->stencil_bit_depths[offset++] = 12;
if (kCGL16Bit & smodes)
c->stencil_bit_depths[offset++] = 16;
if (kCGL24Bit & smodes)
c->stencil_bit_depths[offset++] = 24;
if (kCGL32Bit & smodes)
c->stencil_bit_depths[offset++] = 32;
if (kCGL48Bit & smodes)
c->stencil_bit_depths[offset++] = 48;
if (kCGL64Bit & smodes)
c->stencil_bit_depths[offset++] = 64;
if (kCGL96Bit & smodes)
c->stencil_bit_depths[offset++] = 96;
if (kCGL128Bit & smodes)
c->stencil_bit_depths[offset++] = 128;
assert(offset < GLCAPS_STENCIL_BIT_DEPTH_BUFFERS);
c->total_stencil_bit_depths = offset;
}
static int
handleColorAndAccumulation(struct glColorBufCapabilities *c,
GLint cmodes, int forAccum)
{
int offset = 0;
/*1 */
if (kCGLRGB444Bit & cmodes) {
c[offset].r = 4;
c[offset].g = 4;
c[offset].b = 4;
++offset;
}
/*2 */
if (kCGLARGB4444Bit & cmodes) {
c[offset].a = 4;
c[offset].r = 4;
c[offset].g = 4;
c[offset].b = 4;
c[offset].is_argb = true;
++offset;
}
/*3 */
if (kCGLRGB444A8Bit & cmodes) {
c[offset].r = 4;
c[offset].g = 4;
c[offset].b = 4;
c[offset].a = 8;
++offset;
}
/*4 */
if (kCGLRGB555Bit & cmodes) {
c[offset].r = 5;
c[offset].g = 5;
c[offset].b = 5;
++offset;
}
/*5 */
if (kCGLARGB1555Bit & cmodes) {
c[offset].a = 1;
c[offset].r = 5;
c[offset].g = 5;
c[offset].b = 5;
c[offset].is_argb = true;
++offset;
}
/*6 */
if (kCGLRGB555A8Bit & cmodes) {
c[offset].r = 5;
c[offset].g = 5;
c[offset].b = 5;
c[offset].a = 8;
++offset;
}
/*7 */
if (kCGLRGB565Bit & cmodes) {
c[offset].r = 5;
c[offset].g = 6;
c[offset].b = 5;
++offset;
}
/*8 */
if (kCGLRGB565A8Bit & cmodes) {
c[offset].r = 5;
c[offset].g = 6;
c[offset].b = 5;
c[offset].a = 8;
++offset;
}
/*9 */
if (kCGLRGB888Bit & cmodes) {
c[offset].r = 8;
c[offset].g = 8;
c[offset].b = 8;
++offset;
}
/*10 */
if (kCGLARGB8888Bit & cmodes) {
c[offset].a = 8;
c[offset].r = 8;
c[offset].g = 8;
c[offset].b = 8;
c[offset].is_argb = true;
++offset;
}
/*11 */
if (kCGLRGB888A8Bit & cmodes) {
c[offset].r = 8;
c[offset].g = 8;
c[offset].b = 8;
c[offset].a = 8;
++offset;
}
if (forAccum) {
//#if 0
/* FIXME
* Disable this path, because some part of libGL, X, or Xplugin
* doesn't work with sizes greater than 8.
* When this is enabled and visuals are chosen using depths
* such as 16, the result is that the windows don't redraw
* and are often white, until a resize.
*/
/*12 */
if (kCGLRGB101010Bit & cmodes) {
c[offset].r = 10;
c[offset].g = 10;
c[offset].b = 10;
++offset;
}
/*13 */
if (kCGLARGB2101010Bit & cmodes) {
c[offset].a = 2;
c[offset].r = 10;
c[offset].g = 10;
c[offset].b = 10;
c[offset].is_argb = true;
++offset;
}
/*14 */
if (kCGLRGB101010_A8Bit & cmodes) {
c[offset].r = 10;
c[offset].g = 10;
c[offset].b = 10;
c[offset].a = 8;
++offset;
}
/*15 */
if (kCGLRGB121212Bit & cmodes) {
c[offset].r = 12;
c[offset].g = 12;
c[offset].b = 12;
++offset;
}
/*16 */
if (kCGLARGB12121212Bit & cmodes) {
c[offset].a = 12;
c[offset].r = 12;
c[offset].g = 12;
c[offset].b = 12;
c[offset].is_argb = true;
++offset;
}
/*17 */
if (kCGLRGB161616Bit & cmodes) {
c[offset].r = 16;
c[offset].g = 16;
c[offset].b = 16;
++offset;
}
/*18 */
if (kCGLRGBA16161616Bit & cmodes) {
c[offset].r = 16;
c[offset].g = 16;
c[offset].b = 16;
c[offset].a = 16;
++offset;
}
}
//#endif
/* FIXME should we handle the floating point color modes, and if so, how? */
return offset;
}
static void
handleColorModes(struct glCapabilitiesConfig *c, GLint cmodes)
{
c->total_color_buffers = handleColorAndAccumulation(c->color_buffers,
cmodes, 0);
assert(c->total_color_buffers < GLCAPS_COLOR_BUFFERS);
}
static void
handleAccumulationModes(struct glCapabilitiesConfig *c, GLint cmodes)
{
c->total_accum_buffers = handleColorAndAccumulation(c->accum_buffers,
cmodes, 1);
assert(c->total_accum_buffers < GLCAPS_COLOR_BUFFERS);
}
static void
handleDepthModes(struct glCapabilitiesConfig *c, GLint dmodes)
{
int offset = 0;
#define DEPTH(flag,value) do { \
if(dmodes & flag) { \
c->depth_buffers[offset++] = value; \
} \
} while(0)
/*1 */
DEPTH(kCGL0Bit, 0);
/*2 */
DEPTH(kCGL1Bit, 1);
/*3 */
DEPTH(kCGL2Bit, 2);
/*4 */
DEPTH(kCGL3Bit, 3);
/*5 */
DEPTH(kCGL4Bit, 4);
/*6 */
DEPTH(kCGL5Bit, 5);
/*7 */
DEPTH(kCGL6Bit, 6);
/*8 */
DEPTH(kCGL8Bit, 8);
/*9 */
DEPTH(kCGL10Bit, 10);
/*10 */
DEPTH(kCGL12Bit, 12);
/*11 */
DEPTH(kCGL16Bit, 16);
/*12 */
DEPTH(kCGL24Bit, 24);
/*13 */
DEPTH(kCGL32Bit, 32);
/*14 */
DEPTH(kCGL48Bit, 48);
/*15 */
DEPTH(kCGL64Bit, 64);
/*16 */
DEPTH(kCGL96Bit, 96);
/*17 */
DEPTH(kCGL128Bit, 128);
#undef DEPTH
c->total_depth_buffer_depths = offset;
assert(c->total_depth_buffer_depths < GLCAPS_DEPTH_BUFFERS);
}
/* Return non-zero if an error occured. */
static CGLError
handleRendererDescriptions(CGLRendererInfoObj info, GLint r,
struct glCapabilitiesConfig *c)
{
CGLError err;
GLint accelerated = 0, flags = 0, aux = 0, samplebufs = 0, samples = 0;
err = CGLDescribeRenderer(info, r, kCGLRPAccelerated, &accelerated);
if (err)
return err;
c->accelerated = accelerated;
/* Buffering modes: single/double, stereo */
err = CGLDescribeRenderer(info, r, kCGLRPBufferModes, &flags);
if (err)
return err;
handleBufferModes(c, flags);
/* AUX buffers */
err = CGLDescribeRenderer(info, r, kCGLRPMaxAuxBuffers, &aux);
if (err)
return err;
c->aux_buffers = aux;
/* Depth buffer size */
err = CGLDescribeRenderer(info, r, kCGLRPDepthModes, &flags);
if (err)
return err;
handleDepthModes(c, flags);
/* Multisample buffers */
err = CGLDescribeRenderer(info, r, kCGLRPMaxSampleBuffers, &samplebufs);
if (err)
return err;
c->multisample_buffers = samplebufs;
/* Multisample samples per multisample buffer */
err = CGLDescribeRenderer(info, r, kCGLRPMaxSamples, &samples);
if (err)
return err;
c->multisample_samples = samples;
/* Stencil bit depths */
err = CGLDescribeRenderer(info, r, kCGLRPStencilModes, &flags);
if (err)
return err;
handleStencilModes(c, flags);
/* Color modes (RGB/RGBA depths supported */
err = CGLDescribeRenderer(info, r, kCGLRPColorModes, &flags);
if (err)
return err;
handleColorModes(c, flags);
err = CGLDescribeRenderer(info, r, kCGLRPAccumModes, &flags);
if (err)
return err;
handleAccumulationModes(c, flags);
return kCGLNoError;
}
static void
initCapabilities(struct glCapabilities *cap)
{
cap->configurations = NULL;
cap->total_configurations = 0;
}
static void
initConfig(struct glCapabilitiesConfig *c)
{
int i;
c->accelerated = false;
c->stereo = false;
c->aux_buffers = 0;
c->buffers = 0;
c->total_depth_buffer_depths = 0;
for (i = 0; i < GLCAPS_DEPTH_BUFFERS; ++i) {
c->depth_buffers[i] = GLCAPS_INVALID_DEPTH_VALUE;
}
c->multisample_buffers = 0;
c->multisample_samples = 0;
c->total_stencil_bit_depths = 0;
for (i = 0; i < GLCAPS_STENCIL_BIT_DEPTH_BUFFERS; ++i) {
c->stencil_bit_depths[i] = GLCAPS_INVALID_STENCIL_DEPTH;
}
c->total_color_buffers = 0;
for (i = 0; i < GLCAPS_COLOR_BUFFERS; ++i) {
c->color_buffers[i].r = c->color_buffers[i].g =
c->color_buffers[i].b = c->color_buffers[i].a =
GLCAPS_COLOR_BUF_INVALID_VALUE;
c->color_buffers[i].is_argb = false;
}
c->total_accum_buffers = 0;
for (i = 0; i < GLCAPS_COLOR_BUFFERS; ++i) {
c->accum_buffers[i].r = c->accum_buffers[i].g =
c->accum_buffers[i].b = c->accum_buffers[i].a =
GLCAPS_COLOR_BUF_INVALID_VALUE;
c->accum_buffers[i].is_argb = false;
}
c->next = NULL;
}
void
freeGlCapabilities(struct glCapabilities *cap)
{
struct glCapabilitiesConfig *conf, *next;
conf = cap->configurations;
while (conf) {
next = conf->next;
free(conf);
conf = next;
}
cap->configurations = NULL;
}
/*Return true if an error occured. */
bool
getGlCapabilities(struct glCapabilities *cap)
{
CGLRendererInfoObj info;
CGLError err;
GLint numRenderers = 0, r;
initCapabilities(cap);
err = CGLQueryRendererInfo((GLuint) - 1, &info, &numRenderers);
if (err) {
ErrorF("CGLQueryRendererInfo error: %s\n", CGLErrorString(err));
return err;
}
for (r = 0; r < numRenderers; r++) {
struct glCapabilitiesConfig tmpconf, *conf;
initConfig(&tmpconf);
err = handleRendererDescriptions(info, r, &tmpconf);
if (err) {
ErrorF("handleRendererDescriptions returned error: %s\n",
CGLErrorString(err));
ErrorF("trying to continue...\n");
continue;
}
conf = malloc(sizeof(*conf));
if (NULL == conf) {
FatalError("Unable to allocate memory for OpenGL capabilities\n");
}
/* Copy the struct. */
*conf = tmpconf;
/* Now link the configuration into the list. */
conf->next = cap->configurations;
cap->configurations = conf;
}
CGLDestroyRendererInfo(info);
/* No error occured. We are done. */
return kCGLNoError;
}
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