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Simplify gl_raster_font_upload_atlas

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This commit is contained in:
twinaphex 2017-06-08 08:10:23 +02:00
parent aaf3c876eb
commit f86f1b3e32
1 changed files with 51 additions and 44 deletions
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95
gfx/drivers_font/gl_raster_font.c
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@ -72,6 +72,41 @@ static void gl_raster_font_free_font(void *data,
free(font);
}
#if 0
static bool gl_raster_font_upload_atlas_components_4(gl_raster_t *font)
{
unsigned i, j;
GLint gl_internal = GL_RGBA;
GLenum gl_format = GL_RGBA;
size_t ncomponents = 4;
uint8_t *tmp = NULL;
tmp = (uint8_t*)calloc(font->tex_height, font->tex_width * ncomponents);
for (i = 0; i < font->atlas->height; ++i)
{
const uint8_t *src = &font->atlas->buffer[i * font->atlas->width];
uint8_t *dst = &tmp[i * font->tex_width * ncomponents];
for (j = 0; j < font->atlas->width; ++j)
{
*dst++ = 0xff;
*dst++ = 0xff;
*dst++ = 0xff;
*dst++ = *src++;
}
break;
}
glTexImage2D(GL_TEXTURE_2D, 0, gl_internal, font->tex_width, font->tex_height,
0, gl_format, GL_UNSIGNED_BYTE, tmp);
free(tmp);
return true;
}
#endif
static bool gl_raster_font_upload_atlas(gl_raster_t *font)
{
unsigned i, j;
@ -79,24 +114,9 @@ static bool gl_raster_font_upload_atlas(gl_raster_t *font)
GLenum gl_format = GL_LUMINANCE_ALPHA;
size_t ncomponents = 2;
uint8_t *tmp = NULL;
#if 0
bool ancient = false; /* add a check here if needed */
#endif
#if defined(GL_VERSION_3_0)
struct retro_hw_render_callback *hwr = video_driver_get_hw_context();
#endif
#if 0
if (ancient)
{
gl_internal = GL_RGBA;
gl_format = GL_RGBA;
ncomponents = 4;
}
#endif
#if defined(GL_VERSION_3_0)
if (gl_query_core_context_in_use() ||
(hwr->context_type == RETRO_HW_CONTEXT_OPENGL &&
hwr->version_major >= 3))
@ -112,43 +132,30 @@ static bool gl_raster_font_upload_atlas(gl_raster_t *font)
tmp = (uint8_t*)calloc(font->tex_height, font->tex_width * ncomponents);
if (!tmp)
return false;
for (i = 0; i < font->atlas->height; ++i)
switch (ncomponents)
{
const uint8_t *src = &font->atlas->buffer[i * font->atlas->width];
uint8_t *dst = &tmp[i * font->tex_width * ncomponents];
case 1:
for (i = 0; i < font->atlas->height; ++i)
{
const uint8_t *src = &font->atlas->buffer[i * font->atlas->width];
uint8_t *dst = &tmp[i * font->tex_width * ncomponents];
switch (ncomponents)
{
case 1:
memcpy(dst, src, font->atlas->width);
break;
case 2:
}
break;
case 2:
for (i = 0; i < font->atlas->height; ++i)
{
const uint8_t *src = &font->atlas->buffer[i * font->atlas->width];
uint8_t *dst = &tmp[i * font->tex_width * ncomponents];
for (j = 0; j < font->atlas->width; ++j)
{
*dst++ = 0xff;
*dst++ = *src++;
}
break;
#if 0
case 4:
for (j = 0; j < font->atlas->width; ++j)
{
*dst++ = 0xff;
*dst++ = 0xff;
*dst++ = 0xff;
*dst++ = *src++;
}
break;
#endif
default:
RARCH_ERR("Unsupported number of components: %u\n",
(unsigned)ncomponents);
free(tmp);
return false;
}
}
break;
}
glTexImage2D(GL_TEXTURE_2D, 0, gl_internal, font->tex_width, font->tex_height,