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[egl] added intial cursor support

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This commit is contained in:
Geoffrey McRae
2018-09-24 19:48:11 +10:00
parent c0c63fd93b
commit d331a3dd5a
6 changed files with 379 additions and 60 deletions
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101
client/renderers/egl_texture.c
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@@ -31,6 +31,7 @@ struct EGL_Texture
{
enum EGL_PixelFormat pixFmt;
size_t width, height;
bool streaming;
int textureCount;
GLuint textures[3];
@@ -77,24 +78,21 @@ void egl_texture_free(EGL_Texture ** texture)
*texture = NULL;
}
bool egl_texture_init_streaming(EGL_Texture * texture, enum EGL_PixelFormat pixFmt, size_t width, size_t height, size_t bufferSize)
bool egl_texture_setup(EGL_Texture * texture, enum EGL_PixelFormat pixFmt, size_t width, size_t height, size_t bufferSize, bool streaming)
{
if (texture->textureCount > 0)
{
glDeleteTextures(texture->textureCount, texture->textures);
texture->textureCount = 0;
}
int textureCount;
texture->pixFmt = pixFmt;
texture->width = width;
texture->height = height;
texture->pboBufferSize = bufferSize;
texture->streaming = streaming;
switch(pixFmt)
{
case EGL_PF_RGBA:
case EGL_PF_BGRA:
texture->textureCount = 1;
textureCount = 1;
texture->format = GL_BGRA;
texture->planes[0][0] = width;
texture->planes[0][1] = height;
@@ -102,7 +100,7 @@ bool egl_texture_init_streaming(EGL_Texture * texture, enum EGL_PixelFormat pixF
break;
case EGL_PF_YUV420:
texture->textureCount = 3;
textureCount = 3;
texture->format = GL_RED;
texture->planes[0][0] = width;
texture->planes[0][1] = height;
@@ -120,9 +118,20 @@ bool egl_texture_init_streaming(EGL_Texture * texture, enum EGL_PixelFormat pixF
return false;
}
glGenTextures(texture->textureCount, texture->textures);
glGenSamplers(texture->textureCount, texture->samplers);
for(int i = 0; i < texture->textureCount; ++i)
if (textureCount > texture->textureCount)
{
if (texture->textureCount > 0)
{
glDeleteTextures(texture->textureCount, texture->textures);
glDeleteSamplers(texture->textureCount, texture->samplers);
}
texture->textureCount = textureCount;
glGenTextures(texture->textureCount, texture->textures);
glGenSamplers(texture->textureCount, texture->samplers);
}
for(int i = 0; i < textureCount; ++i)
{
glSamplerParameteri(texture->samplers[i], GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glSamplerParameteri(texture->samplers[i], GL_TEXTURE_MAG_FILTER, GL_LINEAR);
@@ -132,45 +141,61 @@ bool egl_texture_init_streaming(EGL_Texture * texture, enum EGL_PixelFormat pixF
glBindTexture(GL_TEXTURE_2D, texture->textures[i]);
glTexImage2D(GL_TEXTURE_2D, 0, texture->format, texture->planes[i][0], texture->planes[i][1],
0, texture->format, GL_UNSIGNED_BYTE, NULL);
glBindTexture(GL_TEXTURE_2D, 0);
}
glBindTexture(GL_TEXTURE_2D, 0);
if (!texture->hasPBO)
if (streaming)
{
glGenBuffers(2, texture->pbo);
texture->hasPBO = true;
}
if (!texture->hasPBO)
{
glGenBuffers(2, texture->pbo);
texture->hasPBO = true;
}
for(int i = 0; i < 2; ++i)
{
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, texture->pbo[i]);
glBufferData(
GL_PIXEL_UNPACK_BUFFER,
bufferSize,
NULL,
GL_DYNAMIC_DRAW
);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
for(int i = 0; i < 2; ++i)
{
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, texture->pbo[i]);
glBufferData(
GL_PIXEL_UNPACK_BUFFER,
bufferSize,
NULL,
GL_DYNAMIC_DRAW
);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
}
}
return true;
}
bool egl_texture_stream_buffer(EGL_Texture * texture, const uint8_t * buffer)
bool egl_texture_update(EGL_Texture * texture, const uint8_t * buffer)
{
if (++texture->pboIndex == 2)
texture->pboIndex = 0;
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, texture->pbo[texture->pboIndex]);
glBufferSubData(GL_PIXEL_UNPACK_BUFFER, 0, texture->pboBufferSize, buffer);
for(int i = 0; i < texture->textureCount; ++i)
if (texture->streaming)
{
glBindTexture(GL_TEXTURE_2D, texture->textures[i]);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, texture->planes[i][0], texture->planes[i][1],
texture->format, GL_UNSIGNED_BYTE, (const void *)texture->offsets[i]);
}
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
if (++texture->pboIndex == 2)
texture->pboIndex = 0;
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, texture->pbo[texture->pboIndex]);
glBufferSubData(GL_PIXEL_UNPACK_BUFFER, 0, texture->pboBufferSize, buffer);
for(int i = 0; i < texture->textureCount; ++i)
{
glBindTexture(GL_TEXTURE_2D, texture->textures[i]);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, texture->planes[i][0], texture->planes[i][1],
texture->format, GL_UNSIGNED_BYTE, (const void *)texture->offsets[i]);
}
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
}
else
{
for(int i = 0; i < texture->textureCount; ++i)
{
glBindTexture(GL_TEXTURE_2D, texture->textures[i]);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, texture->planes[i][0], texture->planes[i][1],
texture->format, GL_UNSIGNED_BYTE, buffer + texture->offsets[i]);
}
}
glBindTexture(GL_TEXTURE_2D, 0);
return true;
}