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Diffstat (limited to 'minui/graphics.c')
-rw-r--r--minui/graphics.c119
1 files changed, 86 insertions, 33 deletions
diff --git a/minui/graphics.c b/minui/graphics.c
index 296e2e078..4968eac7a 100644
--- a/minui/graphics.c
+++ b/minui/graphics.c
@@ -44,20 +44,24 @@
#define PIXEL_SIZE 2
#endif
+#define NUM_BUFFERS 2
+
typedef struct {
- GGLSurface texture;
+ GGLSurface* texture;
unsigned cwidth;
unsigned cheight;
- unsigned ascent;
} GRFont;
static GRFont *gr_font = 0;
static GGLContext *gr_context = 0;
static GGLSurface gr_font_texture;
-static GGLSurface gr_framebuffer[2];
+static GGLSurface gr_framebuffer[NUM_BUFFERS];
static GGLSurface gr_mem_surface;
static unsigned gr_active_fb = 0;
static unsigned double_buffering = 0;
+static int overscan_percent = OVERSCAN_PERCENT;
+static int overscan_offset_x = 0;
+static int overscan_offset_y = 0;
static int gr_fb_fd = -1;
static int gr_vt_fd = -1;
@@ -130,6 +134,9 @@ static int get_framebuffer(GGLSurface *fb)
return -1;
}
+ overscan_offset_x = vi.xres * overscan_percent / 100;
+ overscan_offset_y = vi.yres * overscan_percent / 100;
+
fb->version = sizeof(*fb);
fb->width = vi.xres;
fb->height = vi.yres;
@@ -169,7 +176,7 @@ static void get_memory_surface(GGLSurface* ms) {
static void set_active_framebuffer(unsigned n)
{
if (n > 1 || !double_buffering) return;
- vi.yres_virtual = vi.yres * PIXEL_SIZE;
+ vi.yres_virtual = vi.yres * NUM_BUFFERS;
vi.yoffset = n * vi.yres;
vi.bits_per_pixel = PIXEL_SIZE * 8;
if (ioctl(gr_fb_fd, FBIOPUT_VSCREENINFO, &vi) < 0) {
@@ -216,15 +223,20 @@ void gr_font_size(int *x, int *y)
*y = gr_font->cheight;
}
-int gr_text(int x, int y, const char *s)
+int gr_text(int x, int y, const char *s, int bold)
{
GGLContext *gl = gr_context;
GRFont *font = gr_font;
unsigned off;
- y -= font->ascent;
+ if (!font->texture) return x;
+
+ bold = bold && (font->texture->height != font->cheight);
- gl->bindTexture(gl, &font->texture);
+ x += overscan_offset_x;
+ y += overscan_offset_y;
+
+ gl->bindTexture(gl, font->texture);
gl->texEnvi(gl, GGL_TEXTURE_ENV, GGL_TEXTURE_ENV_MODE, GGL_REPLACE);
gl->texGeni(gl, GGL_S, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE);
gl->texGeni(gl, GGL_T, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE);
@@ -233,7 +245,8 @@ int gr_text(int x, int y, const char *s)
while((off = *s++)) {
off -= 32;
if (off < 96) {
- gl->texCoord2i(gl, (off * font->cwidth) - x, 0 - y);
+ gl->texCoord2i(gl, (off * font->cwidth) - x,
+ (bold ? font->cheight : 0) - y);
gl->recti(gl, x, y, x + font->cwidth, y + font->cheight);
}
x += font->cwidth;
@@ -242,19 +255,50 @@ int gr_text(int x, int y, const char *s)
return x;
}
-void gr_fill(int x, int y, int w, int h)
+void gr_texticon(int x, int y, gr_surface icon) {
+ if (gr_context == NULL || icon == NULL) {
+ return;
+ }
+ GGLContext* gl = gr_context;
+
+ x += overscan_offset_x;
+ y += overscan_offset_y;
+
+ gl->bindTexture(gl, (GGLSurface*) icon);
+ gl->texEnvi(gl, GGL_TEXTURE_ENV, GGL_TEXTURE_ENV_MODE, GGL_REPLACE);
+ gl->texGeni(gl, GGL_S, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE);
+ gl->texGeni(gl, GGL_T, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE);
+ gl->enable(gl, GGL_TEXTURE_2D);
+
+ int w = gr_get_width(icon);
+ int h = gr_get_height(icon);
+
+ gl->texCoord2i(gl, -x, -y);
+ gl->recti(gl, x, y, x+gr_get_width(icon), y+gr_get_height(icon));
+}
+
+void gr_fill(int x1, int y1, int x2, int y2)
{
+ x1 += overscan_offset_x;
+ y1 += overscan_offset_y;
+
+ x2 += overscan_offset_x;
+ y2 += overscan_offset_y;
+
GGLContext *gl = gr_context;
gl->disable(gl, GGL_TEXTURE_2D);
- gl->recti(gl, x, y, w, h);
+ gl->recti(gl, x1, y1, x2, y2);
}
void gr_blit(gr_surface source, int sx, int sy, int w, int h, int dx, int dy) {
- if (gr_context == NULL) {
+ if (gr_context == NULL || source == NULL) {
return;
}
GGLContext *gl = gr_context;
+ dx += overscan_offset_x;
+ dy += overscan_offset_y;
+
gl->bindTexture(gl, (GGLSurface*) source);
gl->texEnvi(gl, GGL_TEXTURE_ENV, GGL_TEXTURE_ENV_MODE, GGL_REPLACE);
gl->texGeni(gl, GGL_S, GGL_TEXTURE_GEN_MODE, GGL_ONE_TO_ONE);
@@ -280,31 +324,40 @@ unsigned int gr_get_height(gr_surface surface) {
static void gr_init_font(void)
{
- GGLSurface *ftex;
- unsigned char *bits, *rle;
- unsigned char *in, data;
-
gr_font = calloc(sizeof(*gr_font), 1);
- ftex = &gr_font->texture;
- bits = malloc(font.width * font.height);
-
- ftex->version = sizeof(*ftex);
- ftex->width = font.width;
- ftex->height = font.height;
- ftex->stride = font.width;
- ftex->data = (void*) bits;
- ftex->format = GGL_PIXEL_FORMAT_A_8;
+ int res = res_create_surface("font", (void**)&(gr_font->texture));
+ if (res == 0) {
+ // The font image should be a 96x2 array of character images. The
+ // columns are the printable ASCII characters 0x20 - 0x7f. The
+ // top row is regular text; the bottom row is bold.
+ gr_font->cwidth = gr_font->texture->width / 96;
+ gr_font->cheight = gr_font->texture->height / 2;
+ } else {
+ printf("failed to read font: res=%d\n", res);
+
+ // fall back to the compiled-in font.
+ gr_font->texture = malloc(sizeof(*gr_font->texture));
+ gr_font->texture->width = font.width;
+ gr_font->texture->height = font.height;
+ gr_font->texture->stride = font.width;
+
+ unsigned char* bits = malloc(font.width * font.height);
+ gr_font->texture->data = (void*) bits;
+
+ unsigned char data;
+ unsigned char* in = font.rundata;
+ while((data = *in++)) {
+ memset(bits, (data & 0x80) ? 255 : 0, data & 0x7f);
+ bits += (data & 0x7f);
+ }
- in = font.rundata;
- while((data = *in++)) {
- memset(bits, (data & 0x80) ? 255 : 0, data & 0x7f);
- bits += (data & 0x7f);
+ gr_font->cwidth = font.cwidth;
+ gr_font->cheight = font.cheight;
}
- gr_font->cwidth = font.cwidth;
- gr_font->cheight = font.cheight;
- gr_font->ascent = font.cheight - 2;
+ // interpret the grayscale as alpha
+ gr_font->texture->format = GGL_PIXEL_FORMAT_A_8;
}
int gr_init(void)
@@ -364,12 +417,12 @@ void gr_exit(void)
int gr_fb_width(void)
{
- return gr_framebuffer[0].width;
+ return gr_framebuffer[0].width - 2*overscan_offset_x;
}
int gr_fb_height(void)
{
- return gr_framebuffer[0].height;
+ return gr_framebuffer[0].height - 2*overscan_offset_y;
}
gr_pixel *gr_fb_data(void)
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-09 01:36:57 +0200