/*
* Mesa 3-D graphics library
* Version: 6.5
*
* Copyright (C) 1999-2005 Brian Paul All Rights Reserved.
* Copyright (C) 2009 VMware, Inc. 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 "mtypes.h"
#include "attrib.h"
#include "colormac.h"
#include "enums.h"
#include "formats.h"
#include "hash.h"
#include "imports.h"
#include "debug.h"
#include "get.h"
#include "pixelstore.h"
#include "readpix.h"
#include "texobj.h"
/**
* Primitive names
*/
const char *_mesa_prim_name[GL_POLYGON+4] = {
"GL_POINTS",
"GL_LINES",
"GL_LINE_LOOP",
"GL_LINE_STRIP",
"GL_TRIANGLES",
"GL_TRIANGLE_STRIP",
"GL_TRIANGLE_FAN",
"GL_QUADS",
"GL_QUAD_STRIP",
"GL_POLYGON",
"outside begin/end",
"inside unknown primitive",
"unknown state"
};
static const char *
tex_target_name(GLenum tgt)
{
static const struct {
GLenum target;
const char *name;
} tex_targets[] = {
{ GL_TEXTURE_1D, "GL_TEXTURE_1D" },
{ GL_TEXTURE_2D, "GL_TEXTURE_2D" },
{ GL_TEXTURE_3D, "GL_TEXTURE_3D" },
{ GL_TEXTURE_CUBE_MAP, "GL_TEXTURE_CUBE_MAP" },
{ GL_TEXTURE_RECTANGLE, "GL_TEXTURE_RECTANGLE" },
{ GL_TEXTURE_1D_ARRAY_EXT, "GL_TEXTURE_1D_ARRAY" },
{ GL_TEXTURE_2D_ARRAY_EXT, "GL_TEXTURE_2D_ARRAY" }
};
GLuint i;
for (i = 0; i < Elements(tex_targets); i++) {
if (tex_targets[i].target == tgt)
return tex_targets[i].name;
}
return "UNKNOWN TEX TARGET";
}
void
_mesa_print_state( const char *msg, GLuint state )
{
_mesa_debug(NULL,
"%s: (0x%x) %s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n",
msg,
state,
(state & _NEW_MODELVIEW) ? "ctx->ModelView, " : "",
(state & _NEW_PROJECTION) ? "ctx->Projection, " : "",
(state & _NEW_TEXTURE_MATRIX) ? "ctx->TextureMatrix, " : "",
(state & _NEW_ACCUM) ? "ctx->Accum, " : "",
(state & _NEW_COLOR) ? "ctx->Color, " : "",
(state & _NEW_DEPTH) ? "ctx->Depth, " : "",
(state & _NEW_EVAL) ? "ctx->Eval/EvalMap, " : "",
(state & _NEW_FOG) ? "ctx->Fog, " : "",
(state & _NEW_HINT) ? "ctx->Hint, " : "",
(state & _NEW_LIGHT) ? "ctx->Light, " : "",
(state & _NEW_LINE) ? "ctx->Line, " : "",
(state & _NEW_PIXEL) ? "ctx->Pixel, " : "",
(state & _NEW_POINT) ? "ctx->Point, " : "",
(state & _NEW_POLYGON) ? "ctx->Polygon, " : "",
(state & _NEW_POLYGONSTIPPLE) ? "ctx->PolygonStipple, " : "",
(state & _NEW_SCISSOR) ? "ctx->Scissor, " : "",
(state & _NEW_STENCIL) ? "ctx->Stencil, " : "",
(state & _NEW_TEXTURE) ? "ctx->Texture, " : "",
(state & _NEW_TRANSFORM) ? "ctx->Transform, " : "",
(state & _NEW_VIEWPORT) ? "ctx->Viewport, " : "",
(state & _NEW_PACKUNPACK) ? "ctx->Pack/Unpack, " : "",
(state & _NEW_ARRAY) ? "ctx->Array, " : "",
(state & _NEW_RENDERMODE) ? "ctx->RenderMode, " : "",
(state & _NEW_BUFFERS) ? "ctx->Visual, ctx->DrawBuffer,, " : "");
}
void
_mesa_print_tri_caps( const char *name, GLuint flags )
{
_mesa_debug(NULL,
"%s: (0x%x) %s%s%s%s%s%s%s%s%s%s%s%s%s\n",
name,
flags,
(flags & DD_FLATSHADE) ? "flat-shade, " : "",
(flags & DD_SEPARATE_SPECULAR) ? "separate-specular, " : "",
(flags & DD_TRI_LIGHT_TWOSIDE) ? "tri-light-twoside, " : "",
(flags & DD_TRI_TWOSTENCIL) ? "tri-twostencil, " : "",
(flags & DD_TRI_UNFILLED) ? "tri-unfilled, " : "",
(flags & DD_TRI_STIPPLE) ? "tri-stipple, " : "",
(flags & DD_TRI_OFFSET) ? "tri-offset, " : "",
(flags & DD_TRI_SMOOTH) ? "tri-smooth, " : "",
(flags & DD_LINE_SMOOTH) ? "line-smooth, " : "",
(flags & DD_LINE_STIPPLE) ? "line-stipple, " : "",
(flags & DD_POINT_SMOOTH) ? "point-smooth, " : "",
(flags & DD_POINT_ATTEN) ? "point-atten, " : "",
(flags & DD_TRI_CULL_FRONT_BACK) ? "cull-all, " : ""
);
}
/**
* Print information about this Mesa version and build options.
*/
void _mesa_print_info( void )
{
_mesa_debug(NULL, "Mesa GL_VERSION = %s\n",
(char *) _mesa_GetString(GL_VERSION));
_mesa_debug(NULL, "Mesa GL_RENDERER = %s\n",
(char *) _mesa_GetString(GL_RENDERER));
_mesa_debug(NULL, "Mesa GL_VENDOR = %s\n",
(char *) _mesa_GetString(GL_VENDOR));
_mesa_debug(NULL, "Mesa GL_EXTENSIONS = %s\n",
(char *) _mesa_GetString(GL_EXTENSIONS));
#if defined(THREADS)
_mesa_debug(NULL, "Mesa thread-safe: YES\n");
#else
_mesa_debug(NULL, "Mesa thread-safe: NO\n");
#endif
#if defined(USE_X86_ASM)
_mesa_debug(NULL, "Mesa x86-optimized: YES\n");
#else
_mesa_debug(NULL, "Mesa x86-optimized: NO\n");
#endif
#if defined(USE_SPARC_ASM)
_mesa_debug(NULL, "Mesa sparc-optimized: YES\n");
#else
_mesa_debug(NULL, "Mesa sparc-optimized: NO\n");
#endif
}
/**
* Set the debugging flags.
*
* \param debug debug string
*
* If compiled with debugging support then search for keywords in \p debug and
* enables the verbose debug output of the respective feature.
*/
static void add_debug_flags( const char *debug )
{
#ifdef DEBUG
struct debug_option {
const char *name;
GLbitfield flag;
};
static const struct debug_option debug_opt[] = {
{ "varray", VERBOSE_VARRAY },
{ "tex", VERBOSE_TEXTURE },
{ "mat", VERBOSE_MATERIAL },
{ "pipe", VERBOSE_PIPELINE },
{ "driver", VERBOSE_DRIVER },
{ "state", VERBOSE_STATE },
{ "api", VERBOSE_API },
{ "list", VERBOSE_DISPLAY_LIST },
{ "lighting", VERBOSE_LIGHTING },
{ "disassem", VERBOSE_DISASSEM },
{ "draw", VERBOSE_DRAW },
{ "swap", VERBOSE_SWAPBUFFERS }
};
GLuint i;
MESA_VERBOSE = 0x0;
for (i = 0; i < Elements(debug_opt); i++) {
if (strstr(debug
, debug_opt
[i
].
name)) MESA_VERBOSE |= debug_opt[i].flag;
}
/* Debug flag:
*/
MESA_DEBUG_FLAGS |= DEBUG_ALWAYS_FLUSH;
#if defined(_FPU_GETCW) && defined(_FPU_SETCW)
if (strstr(debug
, "fpexceptions")) { /* raise FP exceptions */
fpu_control_t mask;
_FPU_GETCW(mask);
mask &= ~(_FPU_MASK_IM | _FPU_MASK_DM | _FPU_MASK_ZM
| _FPU_MASK_OM | _FPU_MASK_UM);
_FPU_SETCW(mask);
}
#endif
#else
(void) debug;
#endif
}
void
_mesa_init_debug( struct gl_context *ctx )
{
char *c;
/* Dither disable */
ctx->NoDither = _mesa_getenv("MESA_NO_DITHER") ? GL_TRUE : GL_FALSE;
if (ctx->NoDither) {
if (_mesa_getenv("MESA_DEBUG")) {
_mesa_debug(ctx, "MESA_NO_DITHER set - dithering disabled\n");
}
ctx->Color.DitherFlag = GL_FALSE;
}
c = _mesa_getenv("MESA_DEBUG");
if (c)
add_debug_flags(c);
c = _mesa_getenv("MESA_VERBOSE");
if (c)
add_debug_flags(c);
}
/*
* Write ppm file
*/
static void
write_ppm(const char *filename, const GLubyte *buffer, int width, int height,
int comps, int rcomp, int gcomp, int bcomp, GLboolean invert)
{
FILE
*f
= fopen( filename
, "w" ); if (f) {
int x, y;
const GLubyte *ptr = buffer;
fprintf(f
,"# ppm-file created by osdemo.c\n"); fprintf(f
,"%i %i\n", width
,height
); f
= fopen( filename
, "ab" ); /* reopen in binary append mode */ for (y=0; y < height; y++) {
for (x = 0; x < width; x++) {
int yy = invert ? (height - 1 - y) : y;
int i = (yy * width + x) * comps;
fputc(ptr
[i
+rcomp
], f
); /* write red */ fputc(ptr
[i
+gcomp
], f
); /* write green */ fputc(ptr
[i
+bcomp
], f
); /* write blue */ }
}
}
}
/**
* Write a texture image to a ppm file.
* \param face cube face in [0,5]
* \param level mipmap level
*/
static void
write_texture_image(struct gl_texture_object *texObj,
GLuint face, GLuint level)
{
struct gl_texture_image *img = texObj->Image[face][level];
if (img) {
GET_CURRENT_CONTEXT(ctx);
struct gl_pixelstore_attrib store;
GLubyte *buffer;
char s[100];
buffer
= (GLubyte
*) malloc(img
->Width
* img
->Height
* img->Depth * 4);
store = ctx->Pack; /* save */
ctx->Pack = ctx->DefaultPacking;
ctx->Driver.GetTexImage(ctx, texObj->Target, level,
GL_RGBA, GL_UNSIGNED_BYTE,
buffer, texObj, img);
/* make filename */
_mesa_snprintf(s, sizeof(s), "/tmp/tex%u.l%u.f%u.ppm", texObj->Name, level, face);
printf(" Writing image level %u to %s\n", level
, s
); write_ppm(s, buffer, img->Width, img->Height, 4, 0, 1, 2, GL_FALSE);
ctx->Pack = store; /* restore */
}
}
/**
* Write renderbuffer image to a ppm file.
*/
static void
write_renderbuffer_image(const struct gl_renderbuffer *rb)
{
GET_CURRENT_CONTEXT(ctx);
GLubyte *buffer;
char s[100];
GLenum format, type;
if (rb->_BaseFormat == GL_RGB ||
rb->_BaseFormat == GL_RGBA) {
format = GL_RGBA;
type = GL_UNSIGNED_BYTE;
}
else if (rb->_BaseFormat == GL_DEPTH_STENCIL) {
format = GL_DEPTH_STENCIL;
type = GL_UNSIGNED_INT_24_8;
}
else {
return;
}
buffer
= (GLubyte
*) malloc(rb
->Width
* rb
->Height
* 4);
ctx->Driver.ReadPixels(ctx, 0, 0, rb->Width, rb->Height,
format, type, &ctx->DefaultPacking, buffer);
/* make filename */
_mesa_snprintf(s, sizeof(s), "/tmp/renderbuffer%u.ppm", rb->Name);
printf(" Writing renderbuffer image to %s\n", s
); write_ppm(s, buffer, rb->Width, rb->Height, 4, 0, 1, 2, GL_TRUE);
}
/** How many texture images (mipmap levels, faces) to write to files */
#define WRITE_NONE 0
#define WRITE_ONE 1
#define WRITE_ALL 2
static GLuint WriteImages;
static void
dump_texture(struct gl_texture_object *texObj, GLuint writeImages)
{
const GLuint numFaces = texObj->Target == GL_TEXTURE_CUBE_MAP ? 6 : 1;
GLboolean written = GL_FALSE;
GLuint i, j;
printf("Texture %u\n", texObj
->Name
); printf(" Target %s\n", tex_target_name
(texObj
->Target
)); for (i = 0; i < MAX_TEXTURE_LEVELS; i++) {
for (j = 0; j < numFaces; j++) {
struct gl_texture_image *texImg = texObj->Image[j][i];
if (texImg) {
printf(" Face %u level %u: %d x %d x %d, format %s at %p\n", j, i,
texImg->Width, texImg->Height, texImg->Depth,
_mesa_get_format_name(texImg->TexFormat),
texImg->Data);
if (writeImages == WRITE_ALL ||
(writeImages == WRITE_ONE && !written)) {
write_texture_image(texObj, j, i);
written = GL_TRUE;
}
}
}
}
}
/**
* Dump a single texture.
*/
void
_mesa_dump_texture(GLuint texture, GLuint writeImages)
{
GET_CURRENT_CONTEXT(ctx);
struct gl_texture_object *texObj = _mesa_lookup_texture(ctx, texture);
if (texObj) {
dump_texture(texObj, writeImages);
}
}
static void
dump_texture_cb(GLuint id, void *data, void *userData)
{
struct gl_texture_object *texObj = (struct gl_texture_object *) data;
(void) userData;
dump_texture(texObj, WriteImages);
}
/**
* Print basic info about all texture objext to stdout.
* If dumpImages is true, write PPM of level[0] image to a file.
*/
void
_mesa_dump_textures(GLuint writeImages)
{
GET_CURRENT_CONTEXT(ctx);
WriteImages = writeImages;
_mesa_HashWalk(ctx->Shared->TexObjects, dump_texture_cb, ctx);
}
static void
dump_renderbuffer(const struct gl_renderbuffer *rb, GLboolean writeImage)
{
printf("Renderbuffer %u: %u x %u IntFormat = %s\n", rb->Name, rb->Width, rb->Height,
_mesa_lookup_enum_by_nr(rb->InternalFormat));
if (writeImage) {
write_renderbuffer_image(rb);
}
}
static void
dump_renderbuffer_cb(GLuint id, void *data, void *userData)
{
const struct gl_renderbuffer *rb = (const struct gl_renderbuffer *) data;
(void) userData;
dump_renderbuffer(rb, WriteImages);
}
/**
* Print basic info about all renderbuffers to stdout.
* If dumpImages is true, write PPM of level[0] image to a file.
*/
void
_mesa_dump_renderbuffers(GLboolean writeImages)
{
GET_CURRENT_CONTEXT(ctx);
WriteImages = writeImages;
_mesa_HashWalk(ctx->Shared->RenderBuffers, dump_renderbuffer_cb, ctx);
}
void
_mesa_dump_color_buffer(const char *filename)
{
GET_CURRENT_CONTEXT(ctx);
const GLuint w = ctx->DrawBuffer->Width;
const GLuint h = ctx->DrawBuffer->Height;
GLubyte *buf;
buf
= (GLubyte
*) malloc(w
* h
* 4);
_mesa_PushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT);
_mesa_PixelStorei(GL_PACK_ALIGNMENT, 1);
_mesa_PixelStorei(GL_PACK_INVERT_MESA, GL_TRUE);
_mesa_ReadPixels(0, 0, w, h, GL_RGBA, GL_UNSIGNED_BYTE, buf);
printf("ReadBuffer %p 0x%x DrawBuffer %p 0x%x\n", (void *) ctx->ReadBuffer->_ColorReadBuffer,
ctx->ReadBuffer->ColorReadBuffer,
(void *) ctx->DrawBuffer->_ColorDrawBuffers[0],
ctx->DrawBuffer->ColorDrawBuffer[0]);
printf("Writing %d x %d color buffer to %s\n", w
, h
, filename
); write_ppm(filename, buf, w, h, 4, 0, 1, 2, GL_TRUE);
_mesa_PopClientAttrib();
}
void
_mesa_dump_depth_buffer(const char *filename)
{
GET_CURRENT_CONTEXT(ctx);
const GLuint w = ctx->DrawBuffer->Width;
const GLuint h = ctx->DrawBuffer->Height;
GLuint *buf;
GLubyte *buf2;
GLuint i;
buf
= (GLuint
*) malloc(w
* h
* 4); /* 4 bpp */ buf2
= (GLubyte
*) malloc(w
* h
* 3); /* 3 bpp */
_mesa_PushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT);
_mesa_PixelStorei(GL_PACK_ALIGNMENT, 1);
_mesa_PixelStorei(GL_PACK_INVERT_MESA, GL_TRUE);
_mesa_ReadPixels(0, 0, w, h, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, buf);
/* spread 24 bits of Z across R, G, B */
for (i = 0; i < w * h; i++) {
buf2[i*3+0] = (buf[i] >> 24) & 0xff;
buf2[i*3+1] = (buf[i] >> 16) & 0xff;
buf2[i*3+2] = (buf[i] >> 8) & 0xff;
}
printf("Writing %d x %d depth buffer to %s\n", w
, h
, filename
); write_ppm(filename, buf2, w, h, 3, 0, 1, 2, GL_TRUE);
_mesa_PopClientAttrib();
}
void
_mesa_dump_stencil_buffer(const char *filename)
{
GET_CURRENT_CONTEXT(ctx);
const GLuint w = ctx->DrawBuffer->Width;
const GLuint h = ctx->DrawBuffer->Height;
GLubyte *buf;
GLubyte *buf2;
GLuint i;
buf
= (GLubyte
*) malloc(w
* h
); /* 1 bpp */ buf2
= (GLubyte
*) malloc(w
* h
* 3); /* 3 bpp */
_mesa_PushClientAttrib(GL_CLIENT_PIXEL_STORE_BIT);
_mesa_PixelStorei(GL_PACK_ALIGNMENT, 1);
_mesa_PixelStorei(GL_PACK_INVERT_MESA, GL_TRUE);
_mesa_ReadPixels(0, 0, w, h, GL_STENCIL_INDEX, GL_UNSIGNED_BYTE, buf);
for (i = 0; i < w * h; i++) {
buf2[i*3+0] = buf[i];
buf2[i*3+1] = (buf[i] & 127) * 2;
buf2[i*3+2] = (buf[i] - 128) * 2;
}
printf("Writing %d x %d stencil buffer to %s\n", w
, h
, filename
); write_ppm(filename, buf2, w, h, 3, 0, 1, 2, GL_TRUE);
_mesa_PopClientAttrib();
}
/**
* Quick and dirty function to "print" a texture to stdout.
*/
void
_mesa_print_texture(struct gl_context *ctx, const struct gl_texture_image *img)
{
#if CHAN_TYPE != GL_UNSIGNED_BYTE
_mesa_problem(NULL, "PrintTexture not supported");
#else
GLuint i, j, c;
const GLubyte *data = (const GLubyte *) img->Data;
if (!data) {
return;
}
/* XXX add more formats or make into a new format utility function */
switch (img->TexFormat) {
case MESA_FORMAT_A8:
case MESA_FORMAT_L8:
case MESA_FORMAT_I8:
case MESA_FORMAT_CI8:
c = 1;
break;
case MESA_FORMAT_AL88:
case MESA_FORMAT_AL88_REV:
c = 2;
break;
case MESA_FORMAT_RGB888:
case MESA_FORMAT_BGR888:
c = 3;
break;
case MESA_FORMAT_RGBA8888:
case MESA_FORMAT_ARGB8888:
c = 4;
break;
default:
_mesa_problem(NULL, "error in PrintTexture\n");
return;
}
for (i = 0; i < img->Height; i++) {
for (j = 0; j < img->Width; j++) {
if (c==1)
else if (c==2)
printf("%02x%02x ", data
[0], data
[1]); else if (c==3)
printf("%02x%02x%02x ", data
[0], data
[1], data
[2]); else if (c==4)
printf("%02x%02x%02x%02x ", data
[0], data
[1], data
[2], data
[3]); data += (img->RowStride - img->Width) * c;
}
/* XXX use img->ImageStride here */
}
#endif
}