mirror of
https://github.com/CTCaer/RetroArch.git
synced 2024-12-23 03:10:14 +00:00
455 lines
12 KiB
C
455 lines
12 KiB
C
/* RetroArch - A frontend for libretro.
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* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
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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 <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 <retro_assert.h>
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#include <gfx/math/matrix_3x3.h>
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#include "../video_context_driver.h"
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#include "../../libretro.h"
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#include "../../general.h"
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#include "../../retroarch.h"
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#include "../../driver.h"
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#include "../../performance.h"
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#include "../font_driver.h"
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#include "../../content.h"
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#include "../../runloop.h"
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#include "../../verbosity.h"
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typedef struct
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{
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bool should_resize;
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float mScreenAspect;
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bool keep_aspect;
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bool mEglImageBuf;
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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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VGImageFormat mTexType;
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VGImage mImage;
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math_matrix_3x3 mTransformMatrix;
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VGint scissor[4];
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EGLImageKHR last_egl_image;
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char *mLastMsg;
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uint32_t mFontHeight;
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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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bool mFontsOn;
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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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} 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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{
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gfx_ctx_swap_interval(state ? 0 : 1);
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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("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, const input_driver_t **input, void **input_data)
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{
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unsigned temp_width = 0, temp_height = 0;
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VGfloat clearColor[4] = {0, 0, 0, 1};
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settings_t *settings = config_get_ptr();
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vg_t *vg = (vg_t*)calloc(1, sizeof(vg_t));
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const gfx_ctx_driver_t *ctx = gfx_ctx_init_first(vg, settings->video.context_driver,
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GFX_CTX_OPENVG_API, 0, 0, false);
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if (!vg || !ctx)
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goto error;
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gfx_ctx_ctl(GFX_CTL_SET, ctx);
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gfx_ctx_get_video_size(&temp_width, &temp_height);
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RARCH_LOG("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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gfx_ctx_swap_interval(video->vsync ? 1 : 0);
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gfx_ctx_ctl(GFX_CTL_UPDATE_WINDOW_TITLE, NULL);
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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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unsigned win_width = video->width;
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unsigned 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 (!gfx_ctx_set_video_mode(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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gfx_ctx_get_video_size(&temp_width, &temp_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("Verified window resolution %ux%u.\n", 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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gfx_ctx_translate_aspect(&vg->mScreenAspect, 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(vg->mTexType, vg->mTextureWidth, vg->mTextureHeight,
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video->smooth ? VG_IMAGE_QUALITY_BETTER : VG_IMAGE_QUALITY_NONANTIALIASED);
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vg_set_nonblock_state(vg, !video->vsync);
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gfx_ctx_input_driver(input, input_data);
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if (settings->video.font_enable && font_renderer_create_default(&vg->font_driver, &vg->mFontRenderer,
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*settings->video.font_path ? settings->video.font_path : NULL, settings->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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vg->mFontsOn = true;
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vg->mFontHeight = settings->video.font_size;
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vg->mPaintFg = vgCreatePaint();
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vg->mPaintBg = vgCreatePaint();
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VGfloat paintFg[] = { settings->video.msg_color_r, settings->video.msg_color_g, settings->video.msg_color_b, 1.0f };
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VGfloat paintBg[] = { settings->video.msg_color_r / 2.0f, settings->video.msg_color_g / 2.0f, settings->video.msg_color_b / 2.0f, 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") && gfx_ctx_ctl(GFX_CTL_IMAGE_BUFFER_INIT, video))
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{
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pvgCreateEGLImageTargetKHR = (PFNVGCREATEEGLIMAGETARGETKHRPROC)gfx_ctx_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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if (vg)
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free(vg);
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gfx_ctx_ctl(GFX_CTL_DESTROY, NULL);
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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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gfx_ctx_ctl(GFX_CTL_FREE, NULL);
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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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{
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unsigned width, height;
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video_driver_get_size(&width, &height);
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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 = gfx_ctx_image_buffer_write(
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frame, width, height, pitch, (vg->mTexType == VG_sXRGB_8888), 0, &img);
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retro_assert(img != EGL_NO_IMAGE_KHR);
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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("[VG:EGLImage] Error creating image: %08x\n", 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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{
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unsigned width, height;
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vg_t *vg = (vg_t*)data;
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static struct retro_perf_counter vg_fr = {0};
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static struct retro_perf_counter vg_image = {0};
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rarch_perf_init(&vg_fr, "vg_fr");
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retro_perf_start(&vg_fr);
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video_driver_get_size(&width, &height);
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if (frame_width != vg->mRenderWidth || frame_height != vg->mRenderHeight || 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);
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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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rarch_perf_init(&vg_image, "vg_image");
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retro_perf_start(&vg_image);
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vg_copy_frame(vg, frame, frame_width, frame_height, pitch);
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retro_perf_stop(&vg_image);
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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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gfx_ctx_ctl(GFX_CTL_UPDATE_WINDOW_TITLE, NULL);
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retro_perf_stop(&vg_fr);
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gfx_ctx_ctl(GFX_CTL_SWAP_BUFFERS, NULL);
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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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gfx_ctx_size_t size_data;
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bool quit = 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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size_data.quit = &quit;
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size_data.resize = &vg->should_resize;
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size_data.width = &temp_width;
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size_data.height = &temp_height;
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gfx_ctx_ctl(GFX_CTL_CHECK_WINDOW, &size_data);
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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_focus(void *data)
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{
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return gfx_ctx_ctl(GFX_CTL_FOCUS, NULL);
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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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return gfx_ctx_suppress_screensaver(enable);
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}
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static bool vg_has_windowed(void *data)
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{
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return gfx_ctx_ctl(GFX_CTL_HAS_WINDOWED, NULL);
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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)
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{
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(void)data;
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(void)type;
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(void)path;
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return false;
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}
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static void vg_set_rotation(void *data, unsigned rotation)
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{
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(void)data;
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(void)rotation;
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}
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static void vg_viewport_info(void *data,
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struct video_viewport *vp)
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{
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(void)data;
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(void)vp;
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}
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static bool vg_read_viewport(void *data, uint8_t *buffer)
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{
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(void)data;
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(void)buffer;
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return true;
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}
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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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{
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(void)data;
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(void)iface;
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}
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video_driver_t video_vg = {
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vg_init,
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vg_frame,
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vg_set_nonblock_state,
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vg_alive,
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vg_focus,
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vg_suppress_screensaver,
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vg_has_windowed,
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vg_set_shader,
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vg_free,
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"vg",
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NULL, /* set_viewport */
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vg_set_rotation,
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vg_viewport_info,
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vg_read_viewport,
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NULL, /* read_frame_raw */
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#ifdef HAVE_OVERLAY
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NULL, /* overlay_interface */
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#endif
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vg_get_poke_interface
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};
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