warzone2100/lib/ivis_opengl/screen.c

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/*
* Screen.c
*
* Basic double buffered display using direct draw.
*
*/
#ifdef WIN32
/* We need this kludge to avoid a redefinition of INT32 in a jpeglib header */
#define XMD_H
#endif
#include <stdio.h>
#ifndef _MSC_VER //um.. can't find this in win32? ..Bah, compiler specific crud.
#include <stdint.h>
#endif
#include <string.h>
#include <SDL/SDL.h>
#ifdef _MSC_VER
#include <windows.h> //needed for gl.h! --Qamly
#endif
#include <GL/gl.h>
#ifdef __cplusplus
extern "C" {
#endif
#include <jpeglib.h>
// the following two lines compromise an ugly hack because some jpeglib.h
// actually contain configure-created defines that conflict with ours!
// man, those jpeglib authors should get a frigging clue...
#undef HAVE_STDDEF_H
#undef HAVE_STDLIB_H
#ifdef __cplusplus
}
#endif
#include <physfs.h>
#include <setjmp.h>
#include "lib/framework/frame.h"
#include "lib/framework/frameint.h"
#include "lib/ivis_common/piestate.h"
#include "screen.h"
/* Control Whether the back buffer is in system memory for full screen */
#define FULL_SCREEN_SYSTEM TRUE
/* The Current screen size and bit depth */
UDWORD screenWidth = 0;
UDWORD screenHeight = 0;
UDWORD screenDepth = 0;
SDL_Surface *screen;
/* The current screen mode (full screen/windowed) */
SCREEN_MODE screenMode = SCREEN_WINDOWED;
/* Which mode (of operation) the library is running in */
DISPLAY_MODES displayMode;
/* The Front and back buffers */
LPDIRECTDRAWSURFACE4 psFront = NULL;
/* The back buffer is not static to give a back door to display routines so
* they can get at the back buffer directly.
* Mainly did this to link in Sam's 3D engine.
*/
LPDIRECTDRAWSURFACE4 psBack = NULL;
/* The palette for palettised modes */
//static LPDIRECTDRAWPALETTE psPalette = NULL;
/* The actual palette entries for the display palette */
#define PAL_MAX 256
static SDL_Color asPalEntries[PAL_MAX];
/* The bit depth at which it is assumed the mode is palettised */
#define PALETTISED_BITDEPTH 8
/* The number of bits in one colour gun of the windows PALETTEENTRY struct */
#define PALETTEENTRY_BITS 8
/* The Pixel format of the front buffer */
DDPIXELFORMAT sFrontBufferPixelFormat;
/* The Pixel format of the back buffer */
DDPIXELFORMAT sBackBufferPixelFormat;
/* Window's Pixel format */
DDPIXELFORMAT sWinPixelFormat;
/* The size of the windows display mode */
//static UDWORD winDispWidth, winDispHeight;
// The current flip state
FLIP_STATE screenFlipState;
//backDrop
#define BACKDROP_WIDTH 640
#define BACKDROP_HEIGHT 480
UWORD* pBackDropData = NULL;
BOOL bBackDrop = FALSE;
BOOL bUpload = FALSE;
//fog
DWORD fogColour = 0;
static char screendump_filename[255];
static unsigned int screendump_num = 0;
static BOOL screendump_required = FALSE;
/* flag forcing buffers into video memory */
static BOOL g_bVidMem;
static UDWORD backDropWidth = BACKDROP_WIDTH;
static UDWORD backDropHeight = BACKDROP_HEIGHT;
static GLuint backDropTexture = -1;
SDL_Surface *screenGetSDL() {
return screen;
}
/* Initialise the double buffered display */
BOOL screenInitialise( UDWORD width, // Display width
UDWORD height, // Display height
UDWORD bitDepth, // Display bit depth
BOOL fullScreen, // Whether to start windowed
// or full screen.
BOOL bVidMem, // Whether to put surfaces in
// video memory
BOOL bDDraw, // Whether to create ddraw surfaces
HANDLE hWindow) // The main windows handle
{
/* Store the screen information */
screenWidth = width;
screenHeight = height;
screenDepth = 32;
/* store vidmem flag */
g_bVidMem = bVidMem;
{
static int video_flags = 0;
int bpp;
// Calculate the common flags for windowed and fullscreen modes.
if (video_flags == 0) {
const SDL_VideoInfo* video_info;
// Fetch the video info.
video_info = SDL_GetVideoInfo( );
if (!video_info) {
return FALSE;
}
// The flags to pass to SDL_SetVideoMode.
video_flags = SDL_OPENGL; // Enable OpenGL in SDL.
video_flags |= SDL_ANYFORMAT; // Don't emulate requested BPP if not available.
video_flags |= SDL_HWPALETTE; // Store the palette in hardware.
// This checks to see if surfaces can be stored in memory.
if (video_info->hw_available) {
video_flags |= SDL_HWSURFACE;
} else {
video_flags |= SDL_SWSURFACE;
}
// This checks if hardware blits can be done.
if (video_info->blit_hw) {
video_flags |= SDL_HWACCEL;
}
bpp = SDL_VideoModeOK(width, height, screenDepth, video_flags);
if (!bpp) {
debug( LOG_ERROR, "Error: Video mode %dx%d@%dbpp is not supported!\n", width, height, screenDepth );
return FALSE;
}
switch ( bpp )
{
case 32:
case 24:
SDL_GL_SetAttribute( SDL_GL_RED_SIZE, 8 );
SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, 8 );
SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, 8 );
SDL_GL_SetAttribute( SDL_GL_ALPHA_SIZE, 8 );
SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, 16 );
SDL_GL_SetAttribute( SDL_GL_STENCIL_SIZE, 8 );
break;
case 16:
debug( LOG_ERROR, "Warning: Using colour depth of %i instead of %i.", bpp, screenDepth );
debug( LOG_ERROR, " You will experience graphics glitches!" );
SDL_GL_SetAttribute( SDL_GL_RED_SIZE, 5 );
SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, 6 );
SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, 5 );
SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, 16 );
SDL_GL_SetAttribute( SDL_GL_STENCIL_SIZE, 8 );
break;
case 8:
debug( LOG_ERROR, "Error: You don't want to play Warzone with a bit depth of %i, do you?", bpp );
exit( 1 );
break;
default:
debug( LOG_ERROR, "Error: Weird bit depth: %i", bpp );
exit( 1 );
break;
}
// Set the double buffer OpenGL attribute.
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
}
if (fullScreen) {
video_flags |= SDL_FULLSCREEN;
screenMode = SCREEN_FULLSCREEN;
} else {
screenMode = SCREEN_WINDOWED;
}
screen = SDL_SetVideoMode(width, height, bpp, video_flags);
if (!screen) {
printf("Error: SDL_SetVideoMode failed (%s).\n", SDL_GetError());
return FALSE;
}
}
glViewport(0, 0, width, height);
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
glOrtho(0, width, height, 0, 1, -1);
glMatrixMode(GL_TEXTURE);
glScalef(1/256.0, 1/256.0, 1);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glCullFace(GL_FRONT);
glEnable(GL_CULL_FACE);
return TRUE;
}
/* Release the DD objects */
void screenShutDown(void)
{
if (screen != NULL)
{
SDL_FreeSurface(screen);
}
}
BOOL screenReInit( void )
{
BOOL bFullScreen;
if ( screenMode == SCREEN_FULLSCREEN )
{
bFullScreen = TRUE;
}
else
{
bFullScreen = FALSE;
}
screenShutDown();
return screenInitialise( screenWidth, screenHeight, screenDepth, bFullScreen,
g_bVidMem, TRUE, hWndMain );
}
/* Return a pointer to the Direct Draw 2 object */
LPDIRECTDRAW4 screenGetDDObject(void)
{
return NULL;
}
/* Return a pointer to the Direct Draw back buffer surface */
LPDIRECTDRAWSURFACE4 screenGetSurface(void)
{
return psBack;
}
/* Return a pointer to the Front buffer pixel format */
DDPIXELFORMAT *screenGetFrontBufferPixelFormat(void)
{
return NULL;
}
/* Return a bit depth of the Front buffer */
UDWORD screenGetFrontBufferBitDepth(void)
{
return screen->format->BitsPerPixel;
}
/* Return a pixel masks of the Front buffer */
BOOL screenGetFrontBufferPixelFormatMasks(ULONG *amask, ULONG *rmask, ULONG *gmask, ULONG *bmask)
{
*amask = screen->format->Amask;
*rmask = screen->format->Rmask;
*gmask = screen->format->Gmask;
*bmask = screen->format->Bmask;
return TRUE;
}
/* Return a pointer to the back buffer pixel format */
DDPIXELFORMAT *screenGetBackBufferPixelFormat(void)
{
return NULL;
}
/* Return a bit depth of the Back buffer */
UDWORD screenGetBackBufferBitDepth(void)
{
return screen->format->BitsPerPixel;
}
/* Return a pixel masks of the Back buffer */
BOOL screenGetBackBufferPixelFormatMasks(ULONG *amask, ULONG *rmask, ULONG *gmask, ULONG *bmask)
{
*amask = screen->format->Amask;
*rmask = screen->format->Rmask;
*gmask = screen->format->Gmask;
*bmask = screen->format->Bmask;
return TRUE;
}
/*
* screenRestoreSurfaces
*
* Restore the direct draw surfaces if they have been lost.
*
* This is only used internally within the library.
*/
void screenRestoreSurfaces(void)
{
/* nothing to do */
}
void screen_SetBackDrop(UWORD *newBackDropBmp, UDWORD width, UDWORD height)
{
bBackDrop = TRUE;
pBackDropData = newBackDropBmp;
backDropWidth = width;
backDropHeight = height;
}
/* Image structure */
//typedef struct {
// unsigned int width;
// unsigned int height;
// unsigned int channels;
// unsigned char* data;
//} pie_image;
BOOL image_init(pie_image* image)
{
if (image == NULL) return TRUE;
image->width = 0;
image->height = 0;
image->channels = 0;
image->data = NULL;
return FALSE;
}
BOOL image_create(pie_image* image,
unsigned int width,
unsigned int height,
unsigned int channels)
{
if (image == NULL) return TRUE;
image->width = width;
image->height = height;
image->channels = channels;
if (image->data != NULL) {
free(image->data);
}
image->data = malloc(width*height*channels);
return FALSE;
}
BOOL image_delete(pie_image* image)
{
if (image == NULL) return TRUE;
if (image->data != NULL) {
free(image->data);
image->data = NULL;
}
return FALSE;
}
typedef struct my_error_mgr {
struct jpeg_error_mgr pub;
jmp_buf setjmp_buffer;
}* my_error_ptr;
void my_error_exit(j_common_ptr cinfo)
{
my_error_ptr myerr = (my_error_ptr) cinfo->err;
longjmp(myerr->setjmp_buffer, 1);
}
METHODDEF(void) init_source(j_decompress_ptr cinfo) {}
METHODDEF(boolean) fill_input_buffer(j_decompress_ptr cinfo)
{
static JOCTET dummy[] = { (JOCTET) 0xFF, (JOCTET) JPEG_EOI };
/* Insert a fake EOI marker */
cinfo->src->next_input_byte = dummy;
cinfo->src->bytes_in_buffer = 2;
return TRUE;
}
METHODDEF(void) skip_input_data(j_decompress_ptr cinfo, long num_bytes)
{
if (num_bytes > 0) {
while (num_bytes > (long) cinfo->src->bytes_in_buffer) {
num_bytes -= (long) cinfo->src->bytes_in_buffer;
(void) fill_input_buffer(cinfo);
}
cinfo->src->next_input_byte += (size_t) num_bytes;
cinfo->src->bytes_in_buffer -= (size_t) num_bytes;
}
}
METHODDEF(void) term_source(j_decompress_ptr cinfo) {}
BOOL image_load_from_jpg(pie_image* image, const char* filename)
{
struct jpeg_decompress_struct cinfo;
struct my_error_mgr jerr;
int row_stride;
int image_size;
uintptr_t tmp;
JSAMPARRAY ptr[1];
struct jpeg_source_mgr jsrc;
char *buffer;
UDWORD fsize;
if (image == NULL) return TRUE;
if (!loadFile(filename, &buffer, &fsize)) {
debug(LOG_ERROR, "Could not load backdrop file \"%s\"!", filename);
return TRUE;
}
jpeg_create_decompress(&cinfo);
cinfo.src = &jsrc;
jsrc.init_source = init_source;
jsrc.fill_input_buffer = fill_input_buffer;
jsrc.skip_input_data = skip_input_data;
jsrc.resync_to_restart = jpeg_resync_to_restart;
jsrc.term_source = term_source;
jsrc.bytes_in_buffer = fsize;
jsrc.next_input_byte = (JOCTET *)buffer;
cinfo.err = jpeg_std_error(&jerr.pub);
jerr.pub.error_exit = my_error_exit;
if (setjmp(jerr.setjmp_buffer)) {
jpeg_destroy_decompress(&cinfo);
debug(LOG_ERROR, "Error during jpg decompression of \"%s\"!", filename);
FREE(buffer);
return TRUE;
}
jpeg_read_header(&cinfo, TRUE);
cinfo.out_color_space = JCS_RGB;
cinfo.quantize_colors = FALSE;
cinfo.scale_num = 1;
cinfo.scale_denom = 1;
cinfo.dct_method = JDCT_FASTEST;
cinfo.do_fancy_upsampling = FALSE;
jpeg_calc_output_dimensions(&cinfo);
row_stride = cinfo.output_width * cinfo.output_components;
image_size = row_stride * cinfo.output_height;
image_create(image, cinfo.output_width, cinfo.output_height, cinfo.output_components);
jpeg_start_decompress(&cinfo);
tmp = (uintptr_t)image->data;
while (cinfo.output_scanline < cinfo.output_height) {
ptr[0] = (JSAMPARRAY)tmp;
jpeg_read_scanlines(&cinfo, (JSAMPARRAY)ptr, 1);
tmp += row_stride;
}
jpeg_finish_decompress(&cinfo);
jpeg_destroy_decompress(&cinfo);
FREE(buffer);
return FALSE;
}
//=====================================================================
#if 0
static GLuint image_create_texture(char* filename) {
pie_image image;
GLuint texture;
image_init(&image);
if (!image_load_from_jpg(&image, filename)) {
glGenTextures(1, &texture);
pie_SetTexturePage(-1);
glBindTexture(GL_TEXTURE_2D, texture);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB,
image.width, image.height,
0, GL_RGB, GL_UNSIGNED_BYTE, image.data);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
}
image_delete(&image);
return texture;
}
#endif
//=====================================================================
void screen_SetBackDropFromFile(char* filename) {
pie_image image;
image_init(&image);
if (!image_load_from_jpg(&image, filename)) {
if (backDropTexture == -1) {
glGenTextures(1, &backDropTexture);
}
pie_SetTexturePage(-1);
glBindTexture(GL_TEXTURE_2D, backDropTexture);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB,
image.width, image.height,
0, GL_RGB, GL_UNSIGNED_BYTE, image.data);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
}
image_delete(&image);
}
//===================================================================
void screen_StopBackDrop(void)
{
bBackDrop = FALSE; //checking [movie]
}
void screen_RestartBackDrop(void)
{
bBackDrop = TRUE;
}
BOOL screen_GetBackDrop(void)
{
return bBackDrop;
}
//******************************************************************
//slight hack to display maps (or whatever) in background.
//bitmap MUST be 512x512 for now. -Q
void screen_Upload(UWORD* newBackDropBmp)
{
// pie_image image;
// image_init(&image);
if(newBackDropBmp!=NULL)
{
// imagetest=malloc((sizeof(char)*512*512*512));
// image_load_from_jpg(&image, "texpages\\bdrops\\test1.jpg");
glGenTextures(1, &backDropTexture);
pie_SetTexturePage(-1);
glBindTexture(GL_TEXTURE_2D, backDropTexture);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB,
512,512,//backDropWidth, backDropHeight,
0, GL_RGB, GL_UNSIGNED_BYTE, newBackDropBmp);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
/*
// image_delete(&image);
// free(image);
glDisable(GL_DEPTH_TEST);
glDepthMask(GL_FALSE);
pie_SetTexturePage(-1);
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, backDropTexture);
glPolygonMode(GL_FRONT,GL_LINE);
glColor3f(1, 1, 1);
glPushMatrix();
glTranslatef(0,0,-13);
// glBegin(GL_QUADS);
// glVertex3f(-1.0f, 1.0f, 0.0f); // Top Left
// glVertex3f( 1.0f, 1.0f, 0.0f); // Top Right
// glVertex3f( 1.0f,-1.0f, 0.0f); // Bottom Right
// glVertex3f(-1.0f,-1.0f, 0.0f); // Bottom Left
// glEnd();
glBegin(GL_TRIANGLE_FAN);
glVertex3f(10, -12, 0);
glVertex3f(10, 12, 0);
glVertex3f(-10, 12, 0);
glVertex3f(-10, -12, 0);
glEnd();
// glTexCoord2f(0, 0);
// glVertex2f(0, 0);
// glTexCoord2f(512, 0);
// glVertex2f(screenWidth*2, 0);
// glTexCoord2f(0, 512);
// glVertex2f(0, screenHeight*2);
// glTexCoord2f(512, 512);
// glVertex2f(screenWidth*2, screenHeight*2);
// glEnd();
glPopMatrix();
SDL_GL_SwapBuffers();
SDL_GL_SwapBuffers();
*/
// return;
}
glDisable(GL_DEPTH_TEST);
glDepthMask(GL_FALSE);
pie_SetTexturePage(-1);
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, backDropTexture);
glColor3f(1, 1,1);
glBegin(GL_TRIANGLE_STRIP);
glTexCoord2f(0, 0);
glVertex2f(0, 0);
glTexCoord2f(255, 0);
glVertex2f(screenWidth, 0);
glTexCoord2f(0, 255);
glVertex2f(0, screenHeight);
glTexCoord2f(255, 255);
glVertex2f(screenWidth, screenHeight);
glEnd();
}
void screen_SetFogColour(UDWORD newFogColour)
{
UDWORD red, green, blue;
static UDWORD currentFogColour = 0;
if (newFogColour != currentFogColour)
{
if (screen->format->BitsPerPixel == 16)//only set in 16 bit modes
{
if (screen->format->Gmask == 0x07e0)//565
{
red = newFogColour >> 8;
red &= screen->format->Rmask;
green = newFogColour >> 5;
green &= screen->format->Gmask;
blue = newFogColour >> 3;
blue &= screen->format->Bmask;
fogColour = red + green + blue;
}
else if (screen->format->Gmask == 0x03e0)//555
{
red = newFogColour >> 9;
red &= screen->format->Rmask;
green = newFogColour >> 6;
green &= screen->format->Gmask;
blue = newFogColour >> 3;
blue &= screen->format->Bmask;
fogColour = red + green + blue;
}
}
currentFogColour = newFogColour;
}
return;
}
/* Swap between windowed and full screen mode */
void screenToggleMode(void)
{
if ((displayMode == MODE_WINDOWED) || (displayMode == MODE_FULLSCREEN))
{
/* The framework can only run in the current screen mode */
return;
}
if (SDL_WM_ToggleFullScreen(screen))
{
if (screenMode == SCREEN_WINDOWED)
{
screenMode = SCREEN_FULLSCREEN;
}
else if (screenMode == SCREEN_FULLSCREEN)
{
screenMode = SCREEN_WINDOWED;
}
}
}
#define BUFFER_SIZE 4096
typedef struct {
struct jpeg_destination_mgr pub;
PHYSFS_file* file;
JOCTET * buffer;
} my_jpeg_destination_mgr;
METHODDEF(void) init_destination(j_compress_ptr cinfo)
{
my_jpeg_destination_mgr* dm = (my_jpeg_destination_mgr*)(cinfo->dest);
/* Allocate the output buffer --- it will be released when done with image */
dm->buffer = (JOCTET *)malloc(BUFFER_SIZE*sizeof(JOCTET));
dm->pub.next_output_byte = dm->buffer;
dm->pub.free_in_buffer = BUFFER_SIZE;
}
METHODDEF(boolean) empty_output_buffer(j_compress_ptr cinfo)
{
my_jpeg_destination_mgr* dm = (my_jpeg_destination_mgr*)cinfo->dest;
PHYSFS_write(dm->file, dm->buffer, BUFFER_SIZE, 1);
dm->pub.next_output_byte = dm->buffer;
dm->pub.free_in_buffer = BUFFER_SIZE;
return TRUE;
}
METHODDEF(void) term_destination(j_compress_ptr cinfo) {
my_jpeg_destination_mgr* dm = (my_jpeg_destination_mgr*)cinfo->dest;
PHYSFS_write(dm->file, dm->buffer, BUFFER_SIZE-dm->pub.free_in_buffer, 1);
free(dm->buffer);
}
void screenDoDumpToDiskIfRequired()
{
static unsigned char* buffer = NULL;
static unsigned int buffer_size = 0;
struct jpeg_compress_struct cinfo;
struct jpeg_error_mgr jerr;
my_jpeg_destination_mgr jdest;
JSAMPROW row_pointer[1];
int row_stride;
if (!screendump_required) return;
row_stride = screen->w * 3;
if (row_stride * screen->h > buffer_size) {
if (buffer != NULL) {
free(buffer);
}
buffer_size = row_stride * screen->h;
buffer = malloc(buffer_size);
}
glReadPixels(0, 0, screen->w, screen->h, GL_RGB, GL_UNSIGNED_BYTE, buffer);
screendump_required = FALSE;
if ((jdest.file = PHYSFS_openWrite(screendump_filename)) == NULL) {
return;
}
printf("Saving screenshot %s\n", screendump_filename);
cinfo.err = jpeg_std_error(&jerr);
jpeg_create_compress(&cinfo);
cinfo.dest = &jdest.pub;
jdest.pub.init_destination = init_destination;
jdest.pub.empty_output_buffer = empty_output_buffer;
jdest.pub.term_destination = term_destination;
cinfo.image_width = screen->w;
cinfo.image_height = screen->h;
cinfo.input_components = 3;
cinfo.in_color_space = JCS_RGB;
jpeg_set_defaults(&cinfo);
jpeg_set_quality(&cinfo, 75, TRUE);
jpeg_start_compress(&cinfo, TRUE);
while (cinfo.next_scanline < cinfo.image_height) {
row_pointer[0] = & buffer[(screen->h-cinfo.next_scanline-1) * row_stride];
jpeg_write_scanlines(&cinfo, row_pointer, 1);
}
jpeg_finish_compress(&cinfo);
PHYSFS_close(jdest.file);
jpeg_destroy_compress(&cinfo);
}
/* Swap between windowed and full screen mode */
BOOL screenToggleVideoPlaybackMode(void)
{
#if 0
HRESULT ddrval;
DDSURFACEDESC2 ddsd; // Direct Draw surface description
#if !FULL_SCREEN_SYSTEM
DDSCAPS ddscaps;
#endif
if ((displayMode == MODE_WINDOWED) || (displayMode == MODE_FULLSCREEN))
{
/* The framework can only run in the current screen mode */
return TRUE;
}
if (screenMode == SCREEN_WINDOWED)
{
return TRUE;
}
if (screenMode == SCREEN_FULLSCREEN)
{
screenDepth = 16;
screenMode = SCREEN_FULLSCREEN_VIDEO;
RELEASE(psPalette);
}
else if (screenMode == SCREEN_FULLSCREEN_VIDEO)
{
screenDepth = 8;
screenMode = SCREEN_FULLSCREEN;
}
RELEASE(psBack);
RELEASE(psFront);
/* Set the display mode */
ddrval = psDD->lpVtbl->SetDisplayMode(
psDD,
screenWidth, screenHeight, screenDepth,
0,0); // Set these so the DD1 version is used
if (ddrval != DD_OK)
{
DBERROR(("Set display mode failed:\n%s", DDErrorToString(ddrval)));
return FALSE;
}
#if FULL_SCREEN_SYSTEM
/* Create the Primary Surface. */
memset(&ddsd, 0, sizeof(DDSURFACEDESC2));
ddsd.dwSize = sizeof(DDSURFACEDESC2);
ddsd.dwFlags = DDSD_CAPS;
ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;
ddrval = psDD->lpVtbl->CreateSurface(
psDD,
&ddsd,
&psFront,
NULL);
if (ddrval != DD_OK)
{
DBERROR(("Create Primary Surface failed:\n%s", DDErrorToString(ddrval)));
return FALSE;
}
//copy the palette
memset(&sFrontBufferPixelFormat, 0, sizeof(DDPIXELFORMAT));
sFrontBufferPixelFormat.dwSize = sizeof(DDPIXELFORMAT);
ddrval = psFront->lpVtbl->GetPixelFormat(
psFront,
&sFrontBufferPixelFormat);
if (ddrval != DD_OK)
{
DBERROR(("Couldn't get pixel format:\n%s",
DDErrorToString(ddrval)));
return FALSE;
}
/* Create the back buffer */
memset(&ddsd, 0, sizeof(DDSURFACEDESC2));
ddsd.dwSize = sizeof(DDSURFACEDESC2);
ddsd.dwFlags = DDSD_WIDTH | DDSD_HEIGHT | DDSD_CAPS;
ddsd.dwWidth = screenWidth;
ddsd.dwHeight = screenHeight;
ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN | DDSCAPS_3DDEVICE;
/* Force the back buffer into system memory unless flag set */
if ( !g_bVidMem )
{
ddsd.ddsCaps.dwCaps |= DDSCAPS_SYSTEMMEMORY;
}
ddrval = psDD->lpVtbl->CreateSurface(
psDD,
&ddsd,
&psBack,
NULL);
if (ddrval != DD_OK)
{
DBERROR(("Create Back surface failed:\n%s", DDErrorToString(ddrval)));
return FALSE;
}
#else
/* Create the Primary Surface. */
memset(&ddsd, 0, sizeof(DDSURFACEDESC2));
ddsd.dwSize = sizeof(DDSURFACEDESC2);
ddsd.dwFlags = DDSD_CAPS | DDSD_BACKBUFFERCOUNT;
ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE | DDSCAPS_COMPLEX | DDSCAPS_FLIP;
ddsd.dwBackBufferCount = 1; // Use 2 for triple buffering, 1 for double
ddrval = psDD->lpVtbl->CreateSurface(
psDD,
&ddsd,
&psFront,
NULL);
if (ddrval != DD_OK)
{
DBERROR(("Create Primary Surface failed:\n%s", DDErrorToString(ddrval)));
return FALSE;
}
//copy the palette
memset(&sFrontBufferPixelFormat, 0, sizeof(DDPIXELFORMAT));
sFrontBufferPixelFormat.dwSize = sizeof(DDPIXELFORMAT);
ddrval = psFront->lpVtbl->GetPixelFormat(
psFront,
&sFrontBufferPixelFormat);
if (ddrval != DD_OK)
{
DBERROR(("Couldn't get pixel format:\n%s",
DDErrorToString(ddrval)));
return FALSE;
}
/* Get the back buffer */
memset(&ddscaps, 0, sizeof(DDSCAPS));
ddscaps.dwCaps = DDSCAPS_BACKBUFFER;
ddrval = psFront->lpVtbl->GetAttachedSurface(
psFront,
&ddscaps,
&psBack);
if (ddrval != DD_OK)
{
DBERROR(("Get Back surface failed:\n%s", DDErrorToString(ddrval)));
return FALSE;
}
#endif
/* If we are in a palettised mode, create a palette */
if (screenDepth == PALETTISED_BITDEPTH)
{
/* Create the palette from the stored palette entries */
ddrval = psDD->lpVtbl->CreatePalette(
psDD,
DDPCAPS_8BIT,
asPalEntries,
&psPalette,
NULL);
if (ddrval != DD_OK)
{
DBERROR(("Failed to create palette:\n%s", DDErrorToString(ddrval)));
return FALSE;
}
/* Assign the palette to the front buffer */
ddrval = psFront->lpVtbl->SetPalette(psFront, psPalette);
if (ddrval != DD_OK)
{
DBERROR(("Couldn't set palette for front buffer:\n%s",
DDErrorToString(ddrval)));
}
/* Assign the palette to the back buffer */
ddrval = psFront->lpVtbl->SetPalette(psBack, psPalette);
if (ddrval != DD_OK)
{
DBERROR(("Couldn't set palette for back buffer:\n%s",
DDErrorToString(ddrval)));
}
}
#endif
return TRUE;
}
SCREEN_MODE screenGetMode( void )
{
return screenMode;
}
/* Set screen mode */
void screenSetMode(SCREEN_MODE mode)
{
/* If the mode is the same as the current one, don't have to do
* anything. Otherwise toggle the mode.
*/
if (mode != screenMode)
{
screenToggleMode();
}
}
/* In full screen mode flip to the GDI buffer.
* Use this if you want the user to see any GDI output.
* This is mainly used so that ASSERTs and message boxes appear
* even in full screen mode.
*/
void screenFlipToGDI(void)
{
/* do nothing */
}
/* Set palette entries for the display buffer
* first specifies the first palette entry. count the number of entries
* The psPalette should have at least first + count entries in it.
*/
void screenSetPalette(UDWORD first, UDWORD count, PALETTEENTRY *psEntries)
{
UDWORD i;
ASSERT(((first+count-1 < PAL_MAX),
"screenSetPalette: invalid entry range"));
if (count == 0)
{
return;
}
/* ensure that colour 0 is black and 255 is white */
if ((first == 0 || first == 255) && count == 1)
{
return;
}
if (first == 0)
{
first = 1;
count -= 1;
}
if (first + count - 1 == PAL_MAX)
{
count -= 1;
}
for (i = 0; i < count; i++)
{
asPalEntries[first + i].r = psEntries[first + i].peRed;
asPalEntries[first + i].g = psEntries[first + i].peGreen;
asPalEntries[first + i].b = psEntries[first + i].peBlue;
}
SDL_SetPalette(screen, SDL_LOGPAL|SDL_PHYSPAL, asPalEntries + first, first, count);
}
/* Return the best colour match when in a palettised mode */
UBYTE screenGetPalEntry(UBYTE red, UBYTE green, UBYTE blue)
{
UDWORD i, minDist, dist;
UDWORD redDiff,greenDiff,blueDiff;
UBYTE colour;
ASSERT((screen->format->BitsPerPixel == 8,
"screenSetPalette: not in a palettised mode"));
minDist = 0xff*0xff*0xff;
colour = 0;
for(i = 0; i < PAL_MAX; i++)
{
redDiff = asPalEntries[i].r - red;
greenDiff = asPalEntries[i].g - green;
blueDiff = asPalEntries[i].b - blue;
dist = redDiff*redDiff + greenDiff*greenDiff + blueDiff*blueDiff;
if (dist < minDist)
{
minDist = dist;
colour = (UBYTE)i;
}
if (minDist == 0)
{
break;
}
}
return colour;
}
char* screenDumpToDisk(char* path) {
while (1) {
sprintf(screendump_filename, "%s%swz2100_shot_%03i.jpg", path, "/", ++screendump_num);
if (!PHYSFS_exists(screendump_filename)) {
break;
}
}
screendump_required = TRUE;
return screendump_filename;
}
/* Output text to the display screen at location x,y.
* The remaining arguments are as printf.
*/
void screenTextOut(UDWORD x, UDWORD y, STRING *pFormat, ...)
{
}