#include <string.h>
#include <assert.h>
-#include <GL/glew.h>
+#include <epoxy/gl.h>
+#include "effect_util.h"
#include "flat_input.h"
+#include "resource_pool.h"
#include "util.h"
-FlatInput::FlatInput(ImageFormat image_format, MovitPixelFormat pixel_format, GLenum type, unsigned width, unsigned height)
+using namespace std;
+
+namespace movit {
+
+FlatInput::FlatInput(ImageFormat image_format, MovitPixelFormat pixel_format_in, GLenum type, unsigned width, unsigned height)
: image_format(image_format),
- pixel_format(pixel_format),
type(type),
pbo(0),
texture_num(0),
- needs_update(false),
- finalized(false),
output_linear_gamma(false),
needs_mipmaps(false),
width(width),
height(height),
- pitch(width)
+ pitch(width),
+ owns_texture(false),
+ pixel_data(nullptr),
+ fixup_swap_rb(false),
+ fixup_red_to_grayscale(false)
{
- assert(type == GL_FLOAT || type == GL_UNSIGNED_BYTE);
+ assert(type == GL_FLOAT || type == GL_HALF_FLOAT || type == GL_UNSIGNED_SHORT || type == GL_UNSIGNED_BYTE);
register_int("output_linear_gamma", &output_linear_gamma);
register_int("needs_mipmaps", &needs_mipmaps);
-}
+ register_uniform_sampler2d("tex", &uniform_tex);
-FlatInput::~FlatInput()
-{
- if (pbo != 0) {
- glDeleteBuffers(1, &pbo);
- check_error();
- }
- if (texture_num != 0) {
- glDeleteTextures(1, &texture_num);
- check_error();
+ // Some types are not supported in all GL versions (e.g. GLES),
+ // and will corrected into the right format in the shader.
+ switch (pixel_format_in) {
+ case FORMAT_BGRA_PREMULTIPLIED_ALPHA:
+ pixel_format = FORMAT_RGBA_PREMULTIPLIED_ALPHA;
+ fixup_swap_rb = true;
+ break;
+ case FORMAT_BGRA_POSTMULTIPLIED_ALPHA:
+ pixel_format = FORMAT_RGBA_POSTMULTIPLIED_ALPHA;
+ fixup_swap_rb = true;
+ break;
+ case FORMAT_BGR:
+ pixel_format = FORMAT_RGB;
+ fixup_swap_rb = true;
+ break;
+ case FORMAT_GRAYSCALE:
+ pixel_format = FORMAT_R;
+ fixup_red_to_grayscale = true;
+ break;
+ default:
+ pixel_format = pixel_format_in;
+ break;
}
}
-void FlatInput::finalize()
+FlatInput::~FlatInput()
{
- // Translate the input format to OpenGL's enums.
- GLenum internal_format;
- if (type == GL_FLOAT) {
- internal_format = GL_RGBA16F_ARB;
- } else if (output_linear_gamma) {
- assert(type == GL_UNSIGNED_BYTE);
- internal_format = GL_SRGB8_ALPHA8;
- } else {
- assert(type == GL_UNSIGNED_BYTE);
- internal_format = GL_RGBA8;
- }
- if (pixel_format == FORMAT_RGB) {
- format = GL_RGB;
- bytes_per_pixel = 3;
- } else if (pixel_format == FORMAT_RGBA) {
- format = GL_RGBA;
- bytes_per_pixel = 4;
- } else if (pixel_format == FORMAT_BGR) {
- format = GL_BGR;
- bytes_per_pixel = 3;
- } else if (pixel_format == FORMAT_BGRA) {
- format = GL_BGRA;
- bytes_per_pixel = 4;
- } else if (pixel_format == FORMAT_GRAYSCALE) {
- format = GL_LUMINANCE;
- bytes_per_pixel = 1;
- } else {
- assert(false);
- }
- if (type == GL_FLOAT) {
- bytes_per_pixel *= sizeof(float);
- }
-
- // Create PBO to hold the texture holding the input image, and then the texture itself.
- glGenBuffers(1, &pbo);
- check_error();
- glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, pbo);
- check_error();
- glBufferData(GL_PIXEL_UNPACK_BUFFER_ARB, pitch * height * bytes_per_pixel, NULL, GL_STREAM_DRAW);
- check_error();
- glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, 0);
- check_error();
-
- glGenTextures(1, &texture_num);
- check_error();
- glBindTexture(GL_TEXTURE_2D, texture_num);
- check_error();
- glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
- check_error();
- glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, needs_mipmaps ? GL_LINEAR_MIPMAP_NEAREST : GL_LINEAR);
- check_error();
- glPixelStorei(GL_UNPACK_ROW_LENGTH, pitch);
- check_error();
- // Intel/Mesa seems to have a broken glGenerateMipmap() for non-FBO textures, so do it here
- // instead of calling glGenerateMipmap().
- glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP, needs_mipmaps ? GL_TRUE : GL_FALSE);
- check_error();
- glTexImage2D(GL_TEXTURE_2D, 0, internal_format, width, height, 0, format, type, NULL);
- check_error();
- glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
- check_error();
-
- needs_update = true;
- finalized = true;
+ possibly_release_texture();
}
-
-void FlatInput::set_gl_state(GLuint glsl_program_num, const std::string& prefix, unsigned *sampler_num)
+
+void FlatInput::set_gl_state(GLuint glsl_program_num, const string& prefix, unsigned *sampler_num)
{
glActiveTexture(GL_TEXTURE0 + *sampler_num);
check_error();
- glBindTexture(GL_TEXTURE_2D, texture_num);
- check_error();
- if (needs_update) {
- // Copy the pixel data into the PBO.
+ if (texture_num == 0 && (pbo != 0 || pixel_data != nullptr)) {
+ // Translate the input format to OpenGL's enums.
+ GLint internal_format;
+ GLenum format;
+ if (type == GL_FLOAT) {
+ if (pixel_format == FORMAT_R) {
+ internal_format = GL_R32F;
+ } else if (pixel_format == FORMAT_RG) {
+ internal_format = GL_RG32F;
+ } else if (pixel_format == FORMAT_RGB) {
+ internal_format = GL_RGB32F;
+ } else {
+ internal_format = GL_RGBA32F;
+ }
+ } else if (type == GL_HALF_FLOAT) {
+ if (pixel_format == FORMAT_R) {
+ internal_format = GL_R16F;
+ } else if (pixel_format == FORMAT_RG) {
+ internal_format = GL_RG16F;
+ } else if (pixel_format == FORMAT_RGB) {
+ internal_format = GL_RGB16F;
+ } else {
+ internal_format = GL_RGBA16F;
+ }
+ } else if (type == GL_UNSIGNED_SHORT) {
+ if (pixel_format == FORMAT_R) {
+ internal_format = GL_R16;
+ } else if (pixel_format == FORMAT_RG) {
+ internal_format = GL_RG16;
+ } else if (pixel_format == FORMAT_RGB) {
+ internal_format = GL_RGB16;
+ } else {
+ internal_format = GL_RGBA16;
+ }
+ } else if (output_linear_gamma) {
+ assert(type == GL_UNSIGNED_BYTE);
+ if (pixel_format == FORMAT_RGB) {
+ internal_format = GL_SRGB8;
+ } else if (pixel_format == FORMAT_RGBA_POSTMULTIPLIED_ALPHA) {
+ internal_format = GL_SRGB8_ALPHA8;
+ } else {
+ assert(false);
+ }
+ } else {
+ assert(type == GL_UNSIGNED_BYTE);
+ if (pixel_format == FORMAT_R) {
+ internal_format = GL_R8;
+ } else if (pixel_format == FORMAT_RG) {
+ internal_format = GL_RG8;
+ } else if (pixel_format == FORMAT_RGB) {
+ internal_format = GL_RGB8;
+ } else {
+ internal_format = GL_RGBA8;
+ }
+ }
+ if (pixel_format == FORMAT_RGB) {
+ format = GL_RGB;
+ } else if (pixel_format == FORMAT_RGBA_PREMULTIPLIED_ALPHA ||
+ pixel_format == FORMAT_RGBA_POSTMULTIPLIED_ALPHA) {
+ format = GL_RGBA;
+ } else if (pixel_format == FORMAT_RG) {
+ format = GL_RG;
+ } else if (pixel_format == FORMAT_R) {
+ format = GL_RED;
+ } else {
+ assert(false);
+ }
+
+ // (Re-)upload the texture.
+ texture_num = resource_pool->create_2d_texture(internal_format, width, height);
+ glBindTexture(GL_TEXTURE_2D, texture_num);
+ check_error();
glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, pbo);
check_error();
- void *mapped_pbo = glMapBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB, GL_WRITE_ONLY);
- memcpy(mapped_pbo, pixel_data, pitch * height * bytes_per_pixel);
- glUnmapBufferARB(GL_PIXEL_UNPACK_BUFFER_ARB);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, needs_mipmaps ? GL_LINEAR_MIPMAP_NEAREST : GL_LINEAR);
+ check_error();
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
check_error();
-
- // Re-upload the texture from the PBO.
glPixelStorei(GL_UNPACK_ROW_LENGTH, pitch);
check_error();
- glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, width, height, format, type, BUFFER_OFFSET(0));
+ glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, width, height, format, type, pixel_data);
+ check_error();
+ glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
check_error();
+ if (needs_mipmaps) {
+ glGenerateMipmap(GL_TEXTURE_2D);
+ check_error();
+ }
glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
check_error();
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
check_error();
glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, 0);
check_error();
-
- needs_update = false;
+ owns_texture = true;
+ } else {
+ glBindTexture(GL_TEXTURE_2D, texture_num);
+ check_error();
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, needs_mipmaps ? GL_LINEAR_MIPMAP_NEAREST : GL_LINEAR);
+ check_error();
}
// Bind it to a sampler.
- set_uniform_int(glsl_program_num, prefix, "tex", *sampler_num);
+ uniform_tex = *sampler_num;
++*sampler_num;
}
-std::string FlatInput::output_fragment_shader()
+string FlatInput::output_fragment_shader()
+{
+ char buf[256];
+ sprintf(buf, "#define FIXUP_SWAP_RB %d\n#define FIXUP_RED_TO_GRAYSCALE %d\n",
+ fixup_swap_rb, fixup_red_to_grayscale);
+ return buf + read_file("flat_input.frag");
+}
+
+void FlatInput::invalidate_pixel_data()
+{
+ possibly_release_texture();
+}
+
+void FlatInput::possibly_release_texture()
{
- return read_file("flat_input.frag");
+ if (texture_num != 0 && owns_texture) {
+ resource_pool->release_2d_texture(texture_num);
+ texture_num = 0;
+ owns_texture = false;
+ }
}
+
+} // namespace movit
projects / movit / blobdiff