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TINYGL: changed code to allow initialize TinyGL with specific internal texture dimension.

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Grim: 256x256, Myst3: 1024x1024
This commit is contained in:
Pawel Kolodziejski 2014-07-05 13:08:34 +02:00
parent b8beb84339
commit 97b03aed01
8 changed files with 34 additions and 21 deletions
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11
graphics/tinygl/init.cpp
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@ -25,16 +25,25 @@ void endSharedState(GLContext *c) {
gl_free(s->texture_hash_table);
}
void glInit(void *zbuffer1) {
void glInit(void *zbuffer1, int textureSize) {
FrameBuffer *zbuffer = (FrameBuffer *)zbuffer1;
GLContext *c;
GLViewport *v;
if ((textureSize & (textureSize - 1)))
error("glInit: texture size not power of two: %d", textureSize);
if (textureSize <= 1 || textureSize > 4096)
error("glInit: texture size not allowed: %d", textureSize);
c = (GLContext *)gl_zalloc(sizeof(GLContext));
gl_ctx = c;
c->fb = zbuffer;
c->fb->_textureSize = c->_textureSize = textureSize;
c->fb->_textureSizeMask = (textureSize - 1) << ZB_POINT_ST_FRAC_BITS;
// allocate GLVertex array
c->vertex_max = POLYGON_MAX_VERTEX;
c->vertex = (GLVertex *)gl_malloc(POLYGON_MAX_VERTEX * sizeof(GLVertex));