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Fix EGL renderer overlay rendering with SDL_ttf 2.0.18

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Fixes #721
This commit is contained in:
Cameron Gutman 2022-01-20 18:02:44 -06:00
parent 719024ec01
commit dd941154d6
2 changed files with 43 additions and 2 deletions
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42
app/streaming/video/ffmpeg-renderers/eglvid.cpp
View file

@ -15,7 +15,7 @@
#include <SDL_render.h>
#include <SDL_syswm.h>
// These are EGL extensions, so some platform headers may not provide them
// These are extensions, so some platform headers may not provide them
#ifndef EGL_PLATFORM_WAYLAND_KHR
#define EGL_PLATFORM_WAYLAND_KHR 0x31D8
#endif
@ -25,6 +25,9 @@
#ifndef EGL_PLATFORM_GBM_KHR
#define EGL_PLATFORM_GBM_KHR 0x31D7
#endif
#ifndef GL_UNPACK_ROW_LENGTH_EXT
#define GL_UNPACK_ROW_LENGTH_EXT 0x0CF2
#endif
typedef struct _OVERLAY_VERTEX
{
@ -77,6 +80,9 @@ EGLRenderer::EGLRenderer(IFFmpegRenderer *backendRenderer)
m_glGenVertexArraysOES(nullptr),
m_glBindVertexArrayOES(nullptr),
m_glDeleteVertexArraysOES(nullptr),
m_GlesMajorVersion(0),
m_GlesMinorVersion(0),
m_HasExtUnpackSubimage(false),
m_DummyRenderer(nullptr)
{
SDL_assert(backendRenderer);
@ -179,7 +185,33 @@ void EGLRenderer::renderOverlay(Overlay::OverlayType type)
SDL_assert(!SDL_MUSTLOCK(newSurface));
glBindTexture(GL_TEXTURE_2D, m_OverlayTextures[type]);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, newSurface->w, newSurface->h, 0, GL_RGBA, GL_UNSIGNED_BYTE, newSurface->pixels);
void* packedPixelData = nullptr;
if (m_GlesMajorVersion >= 3 || m_HasExtUnpackSubimage) {
// If we are GLES 3.0+ or have GL_EXT_unpack_subimage, GL can handle any pitch
SDL_assert(newSurface->pitch % newSurface->format->BytesPerPixel == 0);
glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT, newSurface->pitch / newSurface->format->BytesPerPixel);
}
else if (newSurface->pitch != newSurface->w * newSurface->format->BytesPerPixel) {
// If we can't use GL_UNPACK_ROW_LENGTH and the surface isn't tightly packed,
// we must allocate a tightly packed buffer and copy our pixels there.
packedPixelData = malloc(newSurface->w * newSurface->h * newSurface->format->BytesPerPixel);
if (!packedPixelData) {
SDL_FreeSurface(newSurface);
return;
}
SDL_ConvertPixels(newSurface->w, newSurface->h,
newSurface->format->format, newSurface->pixels, newSurface->pitch,
newSurface->format->format, packedPixelData, newSurface->w * newSurface->format->BytesPerPixel);
}
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, newSurface->w, newSurface->h, 0, GL_RGBA, GL_UNSIGNED_BYTE,
packedPixelData ? packedPixelData : newSurface->pixels);
if (packedPixelData) {
free(packedPixelData);
}
// SDL_FRect wasn't added until 2.0.10
struct {
@ -515,6 +547,12 @@ bool EGLRenderer::initialize(PDECODER_PARAMETERS params)
return false;
}
SDL_GL_GetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, &m_GlesMajorVersion);
SDL_GL_GetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, &m_GlesMinorVersion);
// We can use GL_UNPACK_ROW_LENGTH for a more optimized upload of non-tightly-packed textures
m_HasExtUnpackSubimage = SDL_GL_ExtensionSupported("GL_EXT_unpack_subimage");
const EGLExtensions eglExtensions(m_EGLDisplay);
if (!eglExtensions.isSupported("EGL_KHR_image_base") &&
!eglExtensions.isSupported("EGL_KHR_image")) {

3
app/streaming/video/ffmpeg-renderers/eglvid.h
View file

@ -49,6 +49,9 @@ private:
PFNGLGENVERTEXARRAYSOESPROC m_glGenVertexArraysOES;
PFNGLBINDVERTEXARRAYOESPROC m_glBindVertexArrayOES;
PFNGLDELETEVERTEXARRAYSOESPROC m_glDeleteVertexArraysOES;
int m_GlesMajorVersion;
int m_GlesMinorVersion;
bool m_HasExtUnpackSubimage;
#define NV12_PARAM_YUVMAT 0
#define NV12_PARAM_OFFSET 1