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Minor code cleanup (memory allocation)

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This commit is contained in:
hpsolo
2001-06-02 23:01:17 +00:00
parent eebff313c5
commit 7b5eb8145a
1 changed files with 20 additions and 18 deletions
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38
zsnes/src/linux/sdllink.c
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@@ -49,7 +49,7 @@ extern unsigned char cvidmode;
// OPENGL VARIABLES
#ifdef __OPENGL__
unsigned short glvidbuffer[512*512];
unsigned short *glvidbuffer = 0;
GLuint gltextures[3];
int gl_inited = 0;
int gltexture256, gltexture512;
@@ -502,19 +502,20 @@ int startgame(void)
}
#ifdef __OPENGL__
if (gl_inited) {
/* this _SHOULD_ be safe even if they aren't generated:
"glDeleteTextures silently ignores 0's and names that do not correspond to existing textures."
However, nVidia's drivers are far less than perfect.
*/
glDeleteTextures(3, gltextures);
gl_inited = 0;
}
if (UseOpenGL) {
if (SurfaceY) glViewport(0,0, SurfaceX, SurfaceY);
else glViewport(0,0, SurfaceX, 1);
glGenTextures(3, gltextures);
gl_inited = 1;
if (SurfaceY) glViewport(0,0, SurfaceX, SurfaceY);
else glViewport(0,0, SurfaceX, 1);
if (!gl_inited) {
glGenTextures(3, gltextures);
glvidbuffer = malloc(512*512*2);
gl_inited = 1;
}
} else {
if (gl_inited) {
glDeleteTextures(3, gltextures);
free(glvidbuffer);
gl_inited = 0;
}
}
BitDepth = (UseOpenGL ? 16 : 0);
@@ -1003,15 +1004,16 @@ static void drawscreenwin_drawglblock(int hires, int start, int end)
if (hires) {
if (!gltexture512) {
unsigned short *b288 = &((unsigned short*)vidbuffer)[16], *b576 = &((unsigned short*)vidbuffer)[75036*2 + 16];
unsigned short *p = &glvidbuffer[0];
unsigned short *vbuf1 = &((unsigned short*)vidbuffer)[16];
unsigned short *vbuf2 = &((unsigned short*)vidbuffer)[75036*2 + 16];
unsigned short *vbuf = &glvidbuffer[0];
for (j = 0; j < 224; j++) {
for (i = 0; i < 256; i++) {
*p++ = *b288++;
*p++ = *b576++;
*vbuf++ = *vbuf1++;
*vbuf++ = *vbuf2++;
}
b288 += 32; b576 += 32;
vbuf1 += 32; vbuf2 += 32; // skip the two 16-pixel-wide columns
}
glBindTexture(GL_TEXTURE_2D, gltextures[1]);