static void nvpr_set_transform(void *render, float *t, int reset)
{
render_ctx *ctx = render;
if (reset)
identity(ctx->transform);
Transform3x2 tr;
tr[0][0] = t[0]; tr[1][0] = t[1];
tr[0][1] = t[2]; tr[1][1] = t[3];
tr[0][2] = t[4]; tr[1][2] = t[5];
mul(ctx->transform, ctx->transform, tr);
MatrixLoadToGL(ctx->transform);
}
void display(void)
{
glClear(GL_COLOR_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
glMatrixPushEXT(GL_MODELVIEW); {
Transform3x2 mat;
mul(mat, view, model);
MatrixLoadToGL(mat);
drawTigerRange(filling, stroking, 0, path_count);
} glMatrixPopEXT(GL_MODELVIEW);
glutSwapBuffers();
}
static void nvpr_begin_frame(void *render, int viewportWidth, int viewportHeight, int winWidth, int winHeight, int width, int height)
{
render_ctx *ctx = render;
ctx->winWidth = winWidth, ctx->winHeight = winHeight, ctx->width = width, ctx->height = height;
g_glMatrixLoadIdentityEXT(GL_PROJECTION);
g_glMatrixOrthoEXT(GL_PROJECTION, 0, winWidth, winHeight, 0, -1, 1);
g_glMatrixLoadIdentityEXT(GL_MODELVIEW);
float scalex = (float)width/viewportWidth;
float scaley = (float)height/viewportHeight;
float best_scale = scalex < scaley ? scalex : scaley;
identity(ctx->transform);
translate(ctx->transform, -(viewportWidth*best_scale - width)/2, -(viewportHeight*best_scale - height)/2);
Transform3x2 tr;
scale(tr, best_scale, best_scale);
mul(ctx->transform, ctx->transform, tr);
MatrixLoadToGL(ctx->transform);
}
