X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=ycbcr_input.cpp;h=dc5e4d9fd2db9e619d9b680583b6c1f514f65220;hp=098b574b1f8f0b79204c90dbaa55ca148a085294;hb=5ee3e6bb0bf100d57a06911b89c3a0a0dc49e2be;hpb=a770ba7526844f395b08625480befad83b8fcadf diff --git a/ycbcr_input.cpp b/ycbcr_input.cpp index 098b574..dc5e4d9 100644 --- a/ycbcr_input.cpp +++ b/ycbcr_input.cpp @@ -1,13 +1,19 @@ -#include -#include -#include - +#include #include +#include +#include +#include +#include -#include "ycbcr_input.h" +#include "effect_util.h" +#include "resource_pool.h" #include "util.h" +#include "ycbcr_input.h" using namespace Eigen; +using namespace std; + +namespace movit { namespace { @@ -59,12 +65,10 @@ YCbCrInput::YCbCrInput(const ImageFormat &image_format, unsigned width, unsigned height) : image_format(image_format), ycbcr_format(ycbcr_format), - needs_update(false), - needs_pbo_recreate(false), - finalized(false), needs_mipmaps(false), width(width), - height(height) + height(height), + resource_pool(NULL) { pbos[0] = pbos[1] = pbos[2] = 0; texture_num[0] = texture_num[1] = texture_num[2] = 0; @@ -86,80 +90,33 @@ YCbCrInput::YCbCrInput(const ImageFormat &image_format, YCbCrInput::~YCbCrInput() { - if (pbos[0] != 0) { - glDeleteBuffers(3, pbos); - check_error(); - } - if (texture_num[0] != 0) { - glDeleteTextures(3, texture_num); - check_error(); - } -} - -void YCbCrInput::finalize() -{ - glPixelStorei(GL_UNPACK_ALIGNMENT, 1); - check_error(); - - // Create PBOs to hold the textures holding the input image, and then the texture itself. - glGenBuffers(3, pbos); - check_error(); - glGenTextures(3, texture_num); - check_error(); - for (unsigned channel = 0; channel < 3; ++channel) { - glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, pbos[channel]); - check_error(); - glBufferData(GL_PIXEL_UNPACK_BUFFER_ARB, pitch[channel] * heights[channel], NULL, GL_STREAM_DRAW); - check_error(); - glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, 0); - check_error(); - - glBindTexture(GL_TEXTURE_2D, texture_num[channel]); - check_error(); - glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); - check_error(); - glPixelStorei(GL_UNPACK_ROW_LENGTH, pitch[channel]); - check_error(); - glTexImage2D(GL_TEXTURE_2D, 0, GL_LUMINANCE8, widths[channel], heights[channel], 0, GL_LUMINANCE, GL_UNSIGNED_BYTE, NULL); - check_error(); - glPixelStorei(GL_UNPACK_ROW_LENGTH, 0); - check_error(); + if (texture_num[channel] != 0) { + resource_pool->release_2d_texture(texture_num[channel]); + } } - - needs_update = true; - finalized = true; } - -void YCbCrInput::set_gl_state(GLuint glsl_program_num, const std::string& prefix, unsigned *sampler_num) + +void YCbCrInput::set_gl_state(GLuint glsl_program_num, const string& prefix, unsigned *sampler_num) { for (unsigned channel = 0; channel < 3; ++channel) { glActiveTexture(GL_TEXTURE0 + *sampler_num + channel); check_error(); - glBindTexture(GL_TEXTURE_2D, texture_num[channel]); - check_error(); - if (needs_update || needs_pbo_recreate) { - // Copy the pixel data into the PBO. + if (texture_num[channel] == 0) { + // (Re-)upload the texture. + texture_num[channel] = resource_pool->create_2d_texture(GL_R8, widths[channel], heights[channel]); + glBindTexture(GL_TEXTURE_2D, texture_num[channel]); + check_error(); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + check_error(); glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, pbos[channel]); check_error(); - - if (needs_pbo_recreate) { - // The pitch has changed; we need to reallocate this PBO. - glBufferData(GL_PIXEL_UNPACK_BUFFER_ARB, pitch[channel] * heights[channel], NULL, GL_STREAM_DRAW); - check_error(); - } - - void *mapped_pbo = glMapBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, GL_WRITE_ONLY); - memcpy(mapped_pbo, pixel_data[channel], pitch[channel] * heights[channel]); - - glUnmapBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB); + glPixelStorei(GL_UNPACK_ALIGNMENT, 1); check_error(); - - // Re-upload the texture from the PBO. glPixelStorei(GL_UNPACK_ROW_LENGTH, pitch[channel]); check_error(); - glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, widths[channel], heights[channel], GL_LUMINANCE, GL_UNSIGNED_BYTE, BUFFER_OFFSET(0)); + glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, widths[channel], heights[channel], GL_RED, GL_UNSIGNED_BYTE, pixel_data[channel]); check_error(); glPixelStorei(GL_UNPACK_ROW_LENGTH, 0); check_error(); @@ -167,22 +124,24 @@ void YCbCrInput::set_gl_state(GLuint glsl_program_num, const std::string& prefix check_error(); glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); check_error(); - glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, 0); + } else { + glBindTexture(GL_TEXTURE_2D, texture_num[channel]); check_error(); } } + glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, 0); + check_error(); + // Bind samplers. set_uniform_int(glsl_program_num, prefix, "tex_y", *sampler_num + 0); set_uniform_int(glsl_program_num, prefix, "tex_cb", *sampler_num + 1); set_uniform_int(glsl_program_num, prefix, "tex_cr", *sampler_num + 2); *sampler_num += 3; - needs_update = false; - needs_pbo_recreate = false; } -std::string YCbCrInput::output_fragment_shader() +string YCbCrInput::output_fragment_shader() { float coeff[3], offset[3], scale[3]; @@ -200,6 +159,14 @@ std::string YCbCrInput::output_fragment_shader() coeff[1] = 0.7152; coeff[2] = 0.0722; break; + + case YCBCR_REC_2020: + // Rec. 2020, page 4. + coeff[0] = 0.2627; + coeff[1] = 0.6780; + coeff[2] = 0.0593; + break; + default: assert(false); } @@ -213,7 +180,7 @@ std::string YCbCrInput::output_fragment_shader() scale[1] = 1.0; scale[2] = 1.0; } else { - // Rec. 601, page 4; Rec. 709, page 19. + // Rec. 601, page 4; Rec. 709, page 19; Rec. 2020, page 4. offset[0] = 16.0 / 255.0; offset[1] = 128.0 / 255.0; offset[2] = 128.0 / 255.0; @@ -242,7 +209,7 @@ std::string YCbCrInput::output_fragment_shader() // Inverting the matrix gives us what we need to go from YCbCr back to RGB. Matrix3d ycbcr_to_rgb = rgb_to_ycbcr.inverse(); - std::string frag_shader; + string frag_shader; frag_shader = output_glsl_mat3("PREFIX(inv_ycbcr_matrix)", ycbcr_to_rgb); @@ -274,3 +241,15 @@ std::string YCbCrInput::output_fragment_shader() frag_shader += read_file("ycbcr_input.frag"); return frag_shader; } + +void YCbCrInput::invalidate_pixel_data() +{ + for (unsigned channel = 0; channel < 3; ++channel) { + if (texture_num[channel] != 0) { + resource_pool->release_2d_texture(texture_num[channel]); + texture_num[channel] = 0; + } + } +} + +} // namespace movit