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https://github.com/libretro/RetroArch
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[GX] overlay implementation
*COMPLETELY UNTESTED, PROBABLY DOESN'T WORK YET*
This commit is contained in:
Toad King
parent
e09b7fb60c
commit
fe4ec8fd7c
130
gx/gx_video.c
130
gx/gx_video.c
@ -1073,6 +1073,133 @@ static void gx_get_poke_interface(void *data, const video_poke_interface_t **ifa
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*iface = &gx_poke_interface;
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}
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#ifdef HAVE_OVERLAY
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static void gx_free_overlay(gx_t *gx);
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static bool gx_overlay_load(void *data, const struct texture_image *images, unsigned num_images)
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{
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unsigned i;
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gx_video_t *gx = (gx_video_t*)data;
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gx_free_overlay(gx);
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gx->overlay = (struct gx_overlay_data*)calloc(num_images, sizeof(*gx->overlay));
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if (!gx->overlay)
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return false;
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gx->overlays = num_images;
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for (i = 0; i < num_images; i++)
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{
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struct gx_overlay_data *data = &gx->overlay[i];
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GX_InitTexObj(&data->tex, images[i].pixels, images[i].width, images[i].height, GX_TF_RGBA8, GX_CLAMP, GX_CLAMP, GX_FALSE);
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GX_InitTexObjFilterMode(&g_tex.obj, GX_LINEAR, GX_LINEAR);
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DCFlushRange(images[i].pixels, images[i].width * images[i].height * sizeof(uint32_t));
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gx_overlay_tex_geom(gx, i, 0, 0, 1, 1); // Default. Stretch to whole screen.
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gx_overlay_vertex_geom(gx, i, 0, 0, 1, 1);
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gx->overlay[i].alpha_mod = 1.0f;
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}
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GX_InvalidateTexAll();
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return true;
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}
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static void gx_overlay_tex_geom(void *data,
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unsigned image,
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GLfloat x, GLfloat y,
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GLfloat w, GLfloat h)
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{
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gx_video_t *gx = (gx_video_t*)data;
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struct gx_overlay_data *o = &gx->overlay[image];
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o->tex_coord[0] = x; o->tex_coord[1] = y;
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o->tex_coord[2] = x + w; o->tex_coord[3] = y;
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o->tex_coord[4] = x; o->tex_coord[5] = y + h;
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o->tex_coord[6] = x + w; o->tex_coord[7] = y + h;
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}
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static void gx_overlay_vertex_geom(void *data,
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unsigned image,
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float x, float y,
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float w, float h)
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{
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gx_video_t *gx = (gx_video_t*)data;
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struct gx_overlay_data *o = &gx->overlay[image];
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o->vertex_coord[0] = x; o->vertex_coord[1] = y;
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o->vertex_coord[2] = x + w; o->vertex_coord[3] = y;
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o->vertex_coord[4] = x; o->vertex_coord[5] = y + h;
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o->vertex_coord[6] = x + w; o->vertex_coord[7] = y + h;
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}
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static void gx_overlay_enable(void *data, bool state)
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{
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gx_video_t *gx = (gx_video_t*)data;
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gx->overlay_enable = state;
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}
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static void gx_overlay_full_screen(void *data, bool enable)
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{
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gx_video_t *gx = (gx_video_t*)data;
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gx->overlay_full_screen = enable;
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}
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static void gx_overlay_set_alpha(void *data, unsigned image, float mod)
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{
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gx_video_t *gx = (gx_video_t*)data;
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gx->overlay[image].alpha_mod = mod;
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}
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static void gx_render_overlay(void *data)
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{
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unsigned i, j;
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gx_t *gx = (gx_t*)data;
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/*if (gx->overlay_full_screen)
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glViewport(0, 0, gx->win_width, gx->win_height);*/
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GX_SetVtxDesc(GX_VA_POS, GX_DIRECT);
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GX_SetVtxDesc(GX_VA_TEX0, GX_DIRECT);
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for (i = 0; i < gx->overlays; i++)
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{
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GX_LoadTexObj(&gx->overlay[i].tex, GX_TEXMAP0);
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GX_Begin(GX_QUADS, GX_VTXFMT0, 4);
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GX_Position3f32(gx->overlay[i].vertex_coord[0], gx->overlay[i].vertex_coord[1], 0);
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GX_TexCoord2f32(gx->overlay[i].tex_coord[0], gx->overlay[i].tex_coord[1]);
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GX_Position3f32(gx->overlay[i].vertex_coord[2], gx->overlay[i].vertex_coord[3], 0);
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GX_TexCoord2f32(gx->overlay[i].tex_coord[2], gx->overlay[i].tex_coord[3]);
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GX_Position3f32(gx->overlay[i].vertex_coord[4], gx->overlay[i].vertex_coord[5], 0);
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GX_TexCoord2f32(gx->overlay[i].tex_coord[4], gx->overlay[i].tex_coord[5]);
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GX_Position3f32(gx->overlay[i].vertex_coord[6], gx->overlay[i].vertex_coord[7], 0);
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GX_TexCoord2f32(gx->overlay[i].tex_coord[6], gx->overlay[i].tex_coord[7]);
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GX_End();
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}
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GX_SetVtxDesc(GX_VA_POS, GX_INDEX8);
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GX_SetVtxDesc(GX_VA_TEX0, GX_INDEX8);
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/*if (gx->overlay_full_screen)
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glViewport(gx->vp.x, gx->vp.y, gx->vp.width, gx->vp.height);*/
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}
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static const video_overlay_interface_t gx_overlay_interface = {
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gx_overlay_enable,
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gx_overlay_load,
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gx_overlay_tex_geom,
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gx_overlay_vertex_geom,
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gx_overlay_full_screen,
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gx_overlay_set_alpha,
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};
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static void gx_get_overlay_interface(void *data, const video_overlay_interface_t **iface)
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{
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(void)data;
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*iface = &gx_overlay_interface;
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}
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#endif
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const video_driver_t video_gx = {
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.init = gx_init,
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.frame = gx_frame,
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@ -1084,5 +1211,8 @@ const video_driver_t video_gx = {
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.set_rotation = gx_set_rotation,
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.viewport_info = gx_viewport_info,
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.restart = gx_restart,
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#ifdef HAVE_OVERLAY
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.overlay_interface = gx_get_overlay_interface,
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#endif
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.poke_interface = gx_get_poke_interface,
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};
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@ -18,6 +18,14 @@
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#ifndef _GX_VIDEO_H__
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#define _GX_VIDEO_H__
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struct gx_overlay_data
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{
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unsigned tex;
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float tex_coord[8];
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float vertex_coord[8];
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float alpha_mod;
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};
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typedef struct gx_video
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{
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bool should_resize;
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@ -28,6 +36,12 @@ typedef struct gx_video
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bool rgui_texture_enable;
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rarch_viewport_t vp;
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unsigned scale;
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#ifdef HAVE_OVERLAY
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struct gx_overlay_data *overlay;
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unsigned overlays;
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bool overlay_enable;
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bool overlay_full_screen;
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#endif
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} gx_video_t;
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void gx_set_video_mode(void *data, unsigned fbWidth, unsigned lines);
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