diff options
Diffstat (limited to 'graphics.c')
| -rw-r--r-- | graphics.c | 28 |
1 files changed, 24 insertions, 4 deletions
@@ -1,4 +1,5 @@ #include "graphics.h" +#include "array.h" bool init_gl(client_state* state) { EGLint attrs[] = { @@ -79,11 +80,30 @@ void render_frame(client_state *state) { glEnable(GL_TEXTURE_2D); glBindTexture(GL_TEXTURE_2D, state->atlas.texture); + // set up matrices + glMatrixMode(GL_PROJECTION); + glLoadIdentity(); + glOrtho(0.0, (double)state->width, (double)state->height, 0.0, -1.0, 1.0); + glMatrixMode(GL_MODELVIEW); + glLoadIdentity(); + + // draw text glBegin(GL_QUADS); - glTexCoord2f(0, 0); glVertex2f(-1,1); - glTexCoord2f(0, 1); glVertex2f(-1,-1); - glTexCoord2f(1, 1); glVertex2f(1,-1); - glTexCoord2f(1, 0); glVertex2f(1,1); + float pen_x = 300; + float pen_y = 200; + // TODO for unicode - check for missing characters, iterate over "unicode characters" + for ( int n = 0; n < array_size(state->input_buffer); n++ ) + { + char c = state->input_buffer[n]; + metric_t* metric = &state->atlas.metrics[(int)c]; + + glTexCoord2f(metric->texture_offset, 0.0f); glVertex2f(pen_x, pen_y); + glTexCoord2f(metric->texture_offset, 1.0f); glVertex2f(pen_x, pen_y + metric->bitmap_height); + glTexCoord2f(metric->texture_size, 1.0f); glVertex2f(pen_x + metric->bitmap_width, pen_y + metric->bitmap_height); + glTexCoord2f(metric->texture_size, 0.0f); glVertex2f(pen_x + metric->bitmap_width, pen_y); + + pen_x += metric->advance_x; + } glEnd(); glDisable(GL_TEXTURE_2D); |