mirror of
https://github.com/libretro/RetroArch.git
synced 2024-05-20 13:27:22 -04:00
534 lines
15 KiB
C
534 lines
15 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
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* Copyright (C) 2011-2017 - Daniel De Matteis
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* Copyright (C) 2012-2015 - Michael Lelli
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*
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* RetroArch is free software: you can redistribute it and/or modify it under the terms
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* of the GNU General Public License as published by the Free Software Found-
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* ation, either version 3 of the License, or (at your option) any later version.
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*
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* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with RetroArch.
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* If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <math.h>
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#include <string.h>
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#include <VG/openvg.h>
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#include <VG/vgext.h>
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#include <EGL/egl.h>
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#include <EGL/eglext.h>
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#include <retro_inline.h>
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#include <gfx/math/matrix_3x3.h>
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#include <libretro.h>
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#ifdef HAVE_CONFIG_H
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#include "../../config.h"
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#endif
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#ifdef HAVE_MENU
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#include "../../menu/menu_driver.h"
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#endif
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#include "../font_driver.h"
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#include "../../retroarch.h"
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#include "../../driver.h"
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#include "../../content.h"
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#include "../../verbosity.h"
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#include "../../configuration.h"
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typedef struct
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{
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bool should_resize;
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bool keep_aspect;
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bool mEglImageBuf;
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bool mFontsOn;
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float mScreenAspect;
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unsigned mTextureWidth;
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unsigned mTextureHeight;
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unsigned mRenderWidth;
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unsigned mRenderHeight;
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unsigned x1, y1, x2, y2;
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uint32_t mFontHeight;
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char *mLastMsg;
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VGint scissor[4];
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VGImageFormat mTexType;
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VGImage mImage;
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math_matrix_3x3 mTransformMatrix;
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EGLImageKHR last_egl_image;
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VGFont mFont;
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void *mFontRenderer;
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const font_renderer_driver_t *font_driver;
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VGuint mMsgLength;
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VGuint mGlyphIndices[1024];
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VGPaint mPaintFg;
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VGPaint mPaintBg;
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void *ctx_data;
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const gfx_ctx_driver_t *ctx_driver;
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} vg_t;
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static PFNVGCREATEEGLIMAGETARGETKHRPROC pvgCreateEGLImageTargetKHR;
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static void vg_set_nonblock_state(void *data, bool state,
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bool adaptive_vsync_enabled, unsigned swap_interval)
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{
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vg_t *vg = (vg_t*)data;
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int interval = state ? 0 : 1;
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if (vg->ctx_driver && vg->ctx_driver->swap_interval)
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{
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if (adaptive_vsync_enabled && interval == 1)
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interval = -1;
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vg->ctx_driver->swap_interval(vg->ctx_data, interval);
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}
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}
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static INLINE bool vg_query_extension(const char *ext)
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{
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const char *str = (const char*)vgGetString(VG_EXTENSIONS);
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bool ret = str && strstr(str, ext);
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RARCH_LOG("[VG]: Querying VG extension: %s => %s\n",
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ext, ret ? "exists" : "doesn't exist");
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return ret;
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}
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static void *vg_init(const video_info_t *video,
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input_driver_t **input, void **input_data)
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{
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unsigned win_width, win_height;
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VGfloat clearColor[4] = {0, 0, 0, 1};
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int interval = 0;
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unsigned mode_width = 0;
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unsigned mode_height = 0;
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unsigned temp_width = 0;
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unsigned temp_height = 0;
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void *ctx_data = NULL;
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settings_t *settings = config_get_ptr();
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const char *path_font = settings->paths.path_font;
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float video_font_size = settings->floats.video_font_size;
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float video_msg_color_r = settings->floats.video_msg_color_r;
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float video_msg_color_g = settings->floats.video_msg_color_g;
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float video_msg_color_b = settings->floats.video_msg_color_b;
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vg_t *vg = (vg_t*)calloc(1, sizeof(vg_t));
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const gfx_ctx_driver_t *ctx = video_context_driver_init_first(
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vg, settings->arrays.video_context_driver,
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GFX_CTX_OPENVG_API, 0, 0, false, &ctx_data);
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bool adaptive_vsync_enabled = video_driver_test_all_flags(
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GFX_CTX_FLAGS_ADAPTIVE_VSYNC) && video->adaptive_vsync;
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if (!vg || !ctx)
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goto error;
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if (ctx_data)
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vg->ctx_data = ctx_data;
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vg->ctx_driver = ctx;
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video_context_driver_set((void*)ctx);
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if (vg->ctx_driver->get_video_size)
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vg->ctx_driver->get_video_size(vg->ctx_data,
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&mode_width, &mode_height);
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temp_width = mode_width;
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temp_height = mode_height;
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RARCH_LOG("[VG]: Detecting screen resolution: %ux%u.\n", temp_width, temp_height);
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if (temp_width != 0 && temp_height != 0)
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video_driver_set_size(temp_width, temp_height);
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interval = video->vsync ? 1 : 0;
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if (ctx->swap_interval)
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{
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if (adaptive_vsync_enabled && interval == 1)
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interval = -1;
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ctx->swap_interval(vg->ctx_data, interval);
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}
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vg->mTexType = video->rgb32 ? VG_sXRGB_8888 : VG_sRGB_565;
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vg->keep_aspect = video->force_aspect;
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win_width = video->width;
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win_height = video->height;
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if (video->fullscreen && (win_width == 0) && (win_height == 0))
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{
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video_driver_get_size(&temp_width, &temp_height);
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win_width = temp_width;
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win_height = temp_height;
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}
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if ( !vg->ctx_driver->set_video_mode
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|| !vg->ctx_driver->set_video_mode(vg->ctx_data,
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win_width, win_height, video->fullscreen))
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goto error;
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video_driver_get_size(&temp_width, &temp_height);
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temp_width = 0;
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temp_height = 0;
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mode_width = 0;
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mode_height = 0;
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if (vg->ctx_driver->get_video_size)
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vg->ctx_driver->get_video_size(vg->ctx_data,
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&mode_width, &mode_height);
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temp_width = mode_width;
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temp_height = mode_height;
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vg->should_resize = true;
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if (temp_width != 0 && temp_height != 0)
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{
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RARCH_LOG("[VG]: Verified window resolution %ux%u.\n",
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temp_width, temp_height);
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video_driver_set_size(temp_width, temp_height);
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}
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video_driver_get_size(&temp_width, &temp_height);
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vg->mScreenAspect = (float)temp_width / temp_height;
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if (vg->ctx_driver->translate_aspect)
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vg->mScreenAspect = vg->ctx_driver->translate_aspect(
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vg->ctx_data, temp_width, temp_height);
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vgSetfv(VG_CLEAR_COLOR, 4, clearColor);
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vg->mTextureWidth = vg->mTextureHeight = video->input_scale * RARCH_SCALE_BASE;
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vg->mImage = vgCreateImage(
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vg->mTexType,
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vg->mTextureWidth,
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vg->mTextureHeight,
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video->smooth
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? VG_IMAGE_QUALITY_BETTER
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: VG_IMAGE_QUALITY_NONANTIALIASED);
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vg_set_nonblock_state(vg, !video->vsync, adaptive_vsync_enabled, interval);
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if (vg->ctx_driver->input_driver)
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{
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const char *joypad_name = settings->arrays.input_joypad_driver;
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vg->ctx_driver->input_driver(
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vg->ctx_data, joypad_name,
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input, input_data);
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}
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if ( video->font_enable
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&& font_renderer_create_default(
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&vg->font_driver, &vg->mFontRenderer,
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*path_font ? path_font : NULL,
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video_font_size))
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{
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vg->mFont = vgCreateFont(0);
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if (vg->mFont != VG_INVALID_HANDLE)
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{
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VGfloat paintFg[4];
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VGfloat paintBg[4];
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vg->mFontsOn = true;
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vg->mFontHeight = video_font_size;
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vg->mPaintFg = vgCreatePaint();
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vg->mPaintBg = vgCreatePaint();
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paintFg[0] = video_msg_color_r;
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paintFg[1] = video_msg_color_g;
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paintFg[2] = video_msg_color_b;
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paintFg[3] = 1.0f;
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paintBg[0] = video_msg_color_r / 2.0f;
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paintBg[1] = video_msg_color_g / 2.0f;
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paintBg[2] = video_msg_color_b / 2.0f;
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paintBg[3] = 0.5f;
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vgSetParameteri(vg->mPaintFg, VG_PAINT_TYPE, VG_PAINT_TYPE_COLOR);
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vgSetParameterfv(vg->mPaintFg, VG_PAINT_COLOR, 4, paintFg);
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vgSetParameteri(vg->mPaintBg, VG_PAINT_TYPE, VG_PAINT_TYPE_COLOR);
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vgSetParameterfv(vg->mPaintBg, VG_PAINT_COLOR, 4, paintBg);
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}
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}
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if (vg_query_extension("KHR_EGL_image")
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&& vg->ctx_driver->image_buffer_init
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&& vg->ctx_driver->image_buffer_init(vg->ctx_data, (void*)video))
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{
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if (vg->ctx_driver->get_proc_address)
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pvgCreateEGLImageTargetKHR = (PFNVGCREATEEGLIMAGETARGETKHRPROC)vg->ctx_driver->get_proc_address("vgCreateEGLImageTargetKHR");
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if (pvgCreateEGLImageTargetKHR)
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{
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RARCH_LOG("[VG] Using EGLImage buffer\n");
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vg->mEglImageBuf = true;
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}
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}
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#if 0
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const char *ext = (const char*)vgGetString(VG_EXTENSIONS);
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if (ext)
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RARCH_LOG("[VG] Supported extensions: %s\n", ext);
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#endif
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return vg;
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error:
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video_context_driver_free();
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if (vg)
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free(vg);
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return NULL;
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}
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static void vg_free(void *data)
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{
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vg_t *vg = (vg_t*)data;
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if (!vg)
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return;
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vgDestroyImage(vg->mImage);
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if (vg->mFontsOn)
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{
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vgDestroyFont(vg->mFont);
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vg->font_driver->free(vg->mFontRenderer);
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vgDestroyPaint(vg->mPaintFg);
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vgDestroyPaint(vg->mPaintBg);
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}
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if (vg->ctx_driver && vg->ctx_driver->destroy)
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vg->ctx_driver->destroy(vg->ctx_data);
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video_context_driver_free();
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free(vg);
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}
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static void vg_calculate_quad(vg_t *vg,
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unsigned width, unsigned height)
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{
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/* set viewport for aspect ratio, taken from the OpenGL driver. */
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if (vg->keep_aspect)
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{
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float desired_aspect = video_driver_get_aspect_ratio();
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/* If the aspect ratios of screen and desired aspect ratio
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* are sufficiently equal (floating point stuff),
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* assume they are actually equal. */
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if (fabs(vg->mScreenAspect - desired_aspect) < 0.0001)
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{
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vg->x1 = 0;
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vg->y1 = 0;
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vg->x2 = width;
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vg->y2 = height;
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}
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else if (vg->mScreenAspect > desired_aspect)
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{
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float delta = (desired_aspect / vg->mScreenAspect - 1.0) / 2.0 + 0.5;
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vg->x1 = width * (0.5 - delta);
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vg->y1 = 0;
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vg->x2 = 2.0 * width * delta + vg->x1;
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vg->y2 = height + vg->y1;
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}
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else
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{
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float delta = (vg->mScreenAspect / desired_aspect - 1.0) / 2.0 + 0.5;
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vg->x1 = 0;
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vg->y1 = height * (0.5 - delta);
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vg->x2 = width + vg->x1;
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vg->y2 = 2.0 * height * delta + vg->y1;
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}
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}
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else
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{
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vg->x1 = 0;
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vg->y1 = 0;
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vg->x2 = width;
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vg->y2 = height;
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}
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vg->scissor[0] = vg->x1;
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vg->scissor[1] = vg->y1;
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vg->scissor[2] = vg->x2 - vg->x1;
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vg->scissor[3] = vg->y2 - vg->y1;
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vgSetiv(VG_SCISSOR_RECTS, 4, vg->scissor);
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}
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static void vg_copy_frame(void *data, const void *frame,
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unsigned width, unsigned height, unsigned pitch)
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{
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vg_t *vg = (vg_t*)data;
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if (vg->mEglImageBuf)
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{
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EGLImageKHR img = 0;
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bool new_egl = false;
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if (vg->ctx_driver->image_buffer_write)
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new_egl = vg->ctx_driver->image_buffer_write(
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vg->ctx_data,
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frame, width, height, pitch,
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(vg->mTexType == VG_sXRGB_8888),
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0,
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&img);
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if (new_egl)
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{
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vgDestroyImage(vg->mImage);
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vg->mImage = pvgCreateEGLImageTargetKHR((VGeglImageKHR) img);
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if (!vg->mImage)
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{
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RARCH_ERR(
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"[VG:EGLImage] Error creating image: %08x\n",
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vgGetError());
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exit(2);
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}
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vg->last_egl_image = img;
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}
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}
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else
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vgImageSubData(vg->mImage, frame, pitch, vg->mTexType, 0, 0, width, height);
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}
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static bool vg_frame(void *data, const void *frame,
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unsigned frame_width, unsigned frame_height,
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uint64_t frame_count, unsigned pitch, const char *msg,
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video_frame_info_t *video_info)
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{
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vg_t *vg = (vg_t*)data;
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unsigned width = video_info->width;
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unsigned height = video_info->height;
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#ifdef HAVE_MENU
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bool menu_is_alive = video_info->menu_is_alive;
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#endif
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if ( frame_width != vg->mRenderWidth
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|| frame_height != vg->mRenderHeight
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|| vg->should_resize)
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{
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vg->mRenderWidth = frame_width;
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vg->mRenderHeight = frame_height;
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vg_calculate_quad(vg, width, height);
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matrix_3x3_quad_to_quad(
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vg->x1, vg->y1, vg->x2, vg->y1, vg->x2, vg->y2, vg->x1, vg->y2,
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/* needs to be flipped, Khronos loves their bottom-left origin */
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0, frame_height, frame_width, frame_height, frame_width, 0, 0, 0,
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&vg->mTransformMatrix);
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vgSeti(VG_MATRIX_MODE, VG_MATRIX_IMAGE_USER_TO_SURFACE);
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vgLoadMatrix(vg->mTransformMatrix.data);
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vg->should_resize = false;
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}
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vgSeti(VG_SCISSORING, VG_FALSE);
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vgClear(0, 0, width, height);
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vgSeti(VG_SCISSORING, VG_TRUE);
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vg_copy_frame(vg, frame, frame_width, frame_height, pitch);
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#ifdef HAVE_MENU
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menu_driver_frame(menu_is_alive, video_info);
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#endif
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vgDrawImage(vg->mImage);
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#if 0
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if (msg && vg->mFontsOn)
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vg_draw_message(vg, msg);
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#endif
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if (vg->ctx_driver->update_window_title)
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vg->ctx_driver->update_window_title(vg->ctx_data);
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if (vg->ctx_driver->swap_buffers)
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vg->ctx_driver->swap_buffers(vg->ctx_data);
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return true;
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}
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static bool vg_alive(void *data)
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{
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bool quit = false;
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bool resize = false;
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unsigned temp_width = 0;
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unsigned temp_height = 0;
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vg_t *vg = (vg_t*)data;
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vg->ctx_driver->check_window(vg->ctx_data,
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&quit, &resize, &temp_width, &temp_height);
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if (temp_width != 0 && temp_height != 0)
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video_driver_set_size(temp_width, temp_height);
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return !quit;
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}
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static bool vg_suppress_screensaver(void *data, bool enable)
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{
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bool enabled = enable;
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vg_t *vg = (vg_t*)data;
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if (vg->ctx_data && vg->ctx_driver->suppress_screensaver)
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return vg->ctx_driver->suppress_screensaver(vg->ctx_data, enabled);
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return false;
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}
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static bool vg_set_shader(void *data,
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enum rarch_shader_type type, const char *path) { return false; }
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static void vg_get_poke_interface(void *data,
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const video_poke_interface_t **iface) { }
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static bool vg_has_windowed(void *data)
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{
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vg_t *vg = (vg_t*)data;
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if (vg && vg->ctx_driver)
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return vg->ctx_driver->has_windowed;
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return false;
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}
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|
static bool vg_focus(void *data)
|
|
{
|
|
vg_t *vg = (vg_t*)data;
|
|
if (vg && vg->ctx_driver && vg->ctx_driver->has_focus)
|
|
return vg->ctx_driver->has_focus(vg->ctx_data);
|
|
return true;
|
|
}
|
|
|
|
video_driver_t video_vg = {
|
|
vg_init,
|
|
vg_frame,
|
|
vg_set_nonblock_state,
|
|
vg_alive,
|
|
vg_focus,
|
|
vg_suppress_screensaver,
|
|
vg_has_windowed,
|
|
vg_set_shader,
|
|
vg_free,
|
|
"vg",
|
|
NULL, /* set_viewport */
|
|
NULL, /* set_rotation */
|
|
NULL, /* viewport_info */
|
|
NULL, /* read_viewport */
|
|
NULL, /* read_frame_raw */
|
|
#ifdef HAVE_OVERLAY
|
|
NULL, /* overlay_interface */
|
|
#endif
|
|
#ifdef HAVE_VIDEO_LAYOUT
|
|
NULL,
|
|
#endif
|
|
vg_get_poke_interface
|
|
};
|