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Switched to explicit flushing of data.

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This commit is contained in:
Thomas Harte 2016-05-01 22:33:00 -04:00
parent c93bcf9f28
commit 4a0e1dc789
1 changed files with 20 additions and 6 deletions
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26
Outputs/CRT/Internals/CRTOpenGL.cpp
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@ -125,7 +125,7 @@ OpenGLOutputBuilder::OpenGLOutputBuilder(unsigned int buffer_depth) :
glBufferData(GL_PIXEL_UNPACK_BUFFER, _input_texture_array_size, NULL, GL_STREAM_DRAW);
// map the buffer for clients
_input_texture_data = (uint8_t *)glMapBufferRange(GL_PIXEL_UNPACK_BUFFER, 0, _input_texture_array_size, GL_MAP_WRITE_BIT | GL_MAP_UNSYNCHRONIZED_BIT);
_input_texture_data = (uint8_t *)glMapBufferRange(GL_PIXEL_UNPACK_BUFFER, 0, _input_texture_array_size, GL_MAP_WRITE_BIT | GL_MAP_UNSYNCHRONIZED_BIT | GL_MAP_FLUSH_EXPLICIT_BIT);
// create the output vertex array
glGenVertexArrays(1, &output_vertex_array);
@ -136,7 +136,7 @@ OpenGLOutputBuilder::OpenGLOutputBuilder(unsigned int buffer_depth) :
glBufferData(GL_ARRAY_BUFFER, OutputVertexBufferDataSize, NULL, GL_STREAM_DRAW);
// map that buffer too, for any CRT activity that may occur before the first draw
_output_buffer_data = (uint8_t *)glMapBufferRange(GL_ARRAY_BUFFER, 0, OutputVertexBufferDataSize, GL_MAP_WRITE_BIT | GL_MAP_UNSYNCHRONIZED_BIT);
_output_buffer_data = (uint8_t *)glMapBufferRange(GL_ARRAY_BUFFER, 0, OutputVertexBufferDataSize, GL_MAP_WRITE_BIT | GL_MAP_UNSYNCHRONIZED_BIT | GL_MAP_FLUSH_EXPLICIT_BIT);
// create the source vertex array
glGenVertexArrays(1, &source_vertex_array);
@ -147,7 +147,7 @@ OpenGLOutputBuilder::OpenGLOutputBuilder(unsigned int buffer_depth) :
glBufferData(GL_ARRAY_BUFFER, SourceVertexBufferDataSize, NULL, GL_STREAM_DRAW);
// map that buffer too, for any CRT activity that may occur before the first draw
_source_buffer_data = (uint8_t *)glMapBufferRange(GL_ARRAY_BUFFER, 0, SourceVertexBufferDataSize, GL_MAP_WRITE_BIT | GL_MAP_UNSYNCHRONIZED_BIT);
_source_buffer_data = (uint8_t *)glMapBufferRange(GL_ARRAY_BUFFER, 0, SourceVertexBufferDataSize, GL_MAP_WRITE_BIT | GL_MAP_UNSYNCHRONIZED_BIT | GL_MAP_FLUSH_EXPLICIT_BIT);
}
OpenGLOutputBuilder::~OpenGLOutputBuilder()
@ -261,6 +261,13 @@ void OpenGLOutputBuilder::draw_frame(unsigned int output_width, unsigned int out
glBindVertexArray(source_vertex_array);
glDisable(GL_BLEND);
// flush the source data
glBindBuffer(GL_ARRAY_BUFFER, source_array_buffer);
for(int c = 0; c < number_of_drawing_zones; c++)
{
glFlushMappedBufferRange(GL_ARRAY_BUFFER, drawing_zones[c*2] / SourceVertexSize, drawing_zones[c*2 + 1] / SourceVertexSize);
}
OpenGL::TextureTarget *targets[] = {
compositeTexture.get(),
filteredYTexture.get(),
@ -318,12 +325,12 @@ void OpenGLOutputBuilder::draw_frame(unsigned int output_width, unsigned int out
// drawing commands having been issued, reclaim the array buffer pointer
glBindBuffer(GL_ARRAY_BUFFER, output_array_buffer);
_output_buffer_data = (uint8_t *)glMapBufferRange(GL_ARRAY_BUFFER, 0, OutputVertexBufferDataSize, GL_MAP_WRITE_BIT | GL_MAP_UNSYNCHRONIZED_BIT);
_output_buffer_data = (uint8_t *)glMapBufferRange(GL_ARRAY_BUFFER, 0, OutputVertexBufferDataSize, GL_MAP_WRITE_BIT | GL_MAP_UNSYNCHRONIZED_BIT | GL_MAP_FLUSH_EXPLICIT_BIT);
glBindBuffer(GL_ARRAY_BUFFER, source_array_buffer);
_source_buffer_data = (uint8_t *)glMapBufferRange(GL_ARRAY_BUFFER, 0, SourceVertexBufferDataSize, GL_MAP_WRITE_BIT | GL_MAP_UNSYNCHRONIZED_BIT);
_source_buffer_data = (uint8_t *)glMapBufferRange(GL_ARRAY_BUFFER, 0, SourceVertexBufferDataSize, GL_MAP_WRITE_BIT | GL_MAP_UNSYNCHRONIZED_BIT | GL_MAP_FLUSH_EXPLICIT_BIT);
_input_texture_data = (uint8_t *)glMapBufferRange(GL_PIXEL_UNPACK_BUFFER, 0, _input_texture_array_size, GL_MAP_WRITE_BIT | GL_MAP_UNSYNCHRONIZED_BIT);
_input_texture_data = (uint8_t *)glMapBufferRange(GL_PIXEL_UNPACK_BUFFER, 0, _input_texture_array_size, GL_MAP_WRITE_BIT | GL_MAP_UNSYNCHRONIZED_BIT | GL_MAP_FLUSH_EXPLICIT_BIT);
_output_mutex->unlock();
}
@ -339,6 +346,13 @@ void OpenGLOutputBuilder::perform_output_stage(unsigned int output_width, unsign
GLsizei drawing_zones[4];
int number_of_drawing_zones = getCircularRanges(_drawn_output_buffer_data_pointer, _output_buffer_data_pointer, OutputVertexBufferDataSize, 6*OutputVertexSize, drawing_zones);
// flush the buffer data
glBindBuffer(GL_ARRAY_BUFFER, output_array_buffer);
for(int c = 0; c < number_of_drawing_zones; c++)
{
glFlushMappedBufferRange(GL_ARRAY_BUFFER, drawing_zones[c*2] / OutputVertexSize, drawing_zones[c*2 + 1] / OutputVertexSize);
}
_output_buffer_data_pointer %= SourceVertexBufferDataSize;
_output_buffer_data_pointer -= (_output_buffer_data_pointer%(6*OutputVertexSize));
_drawn_output_buffer_data_pointer = _output_buffer_data_pointer;