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lovr
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lovrBufferDiscard;

This commit is contained in:
bjorn 2019-06-25 00:09:48 -07:00
parent 5cd93b66c6
commit a691192af9
3 changed files with 22 additions and 0 deletions
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1
src/modules/graphics/buffer.h
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@ -40,3 +40,4 @@ BufferUsage lovrBufferGetUsage(Buffer* buffer);
void* lovrBufferMap(Buffer* buffer, size_t offset);
void lovrBufferFlush(Buffer* buffer, size_t offset, size_t size);
void lovrBufferUnmap(Buffer* buffer);
void lovrBufferDiscard(Buffer* buffer);

1
src/modules/graphics/graphics.c
View File

@ -102,6 +102,7 @@ static void* lovrGraphicsMapBuffer(BufferRole role, uint32_t count) {
if (state.cursors[role] + count > limit) {
lovrGraphicsFlush();
lovrBufferDiscard(buffer);
state.cursors[role] = 0;
}

20
src/modules/graphics/opengl.c
View File

@ -1711,6 +1711,26 @@ void lovrBufferUnmap(Buffer* buffer) {
buffer->flushTo = 0;
}
void lovrBufferDiscard(Buffer* buffer) {
lovrGpuBindBuffer(buffer->type, buffer->id);
GLenum glType = convertBufferType(buffer->type);
#ifdef LOVR_WEBGL
glBufferData(glType, buffer->size, NULL, convertBufferUsage(buffer->usage));
#else
if (GLAD_GL_ARB_buffer_storage) {
// TODO
} else {
if (buffer->mapped) {
glUnmapBuffer(glType);
}
GLbitfield flags = GL_MAP_WRITE_BIT | GL_MAP_FLUSH_EXPLICIT_BIT | GL_MAP_UNSYNCHRONIZED_BIT | GL_MAP_INVALIDATE_BUFFER_BIT | (buffer->readable ? GL_MAP_READ_BIT : 0);
buffer->data = glMapBufferRange(glType, 0, buffer->size, flags);
buffer->mapped = true;
}
#endif
}
// Shader
static GLuint compileShader(GLenum type, const char** sources, int count) {