X-Git-Url: https://git.ucc.asn.au/?p=ipdf%2Fcode.git;a=blobdiff_plain;f=src%2Fscreen.cpp;h=a32b1e24361ad8675ff6daeea8c3023d973268ee;hp=6d67820126f5ab24cee9dab9a5ca40934c8a5417;hb=d9c0c3792133f87cd224dc22be428be8ddc016d8;hpb=af1f07330cb8f4d448cc75ee720b633338eba1e8 diff --git a/src/screen.cpp b/src/screen.cpp index 6d67820..a32b1e2 100644 --- a/src/screen.cpp +++ b/src/screen.cpp @@ -8,59 +8,25 @@ #include "bufferbuilder.h" #include "shaderprogram.h" -#define BASICTEX_VERT \ - "#version 140\n"\ - "#extension GL_ARB_shading_language_420pack : require\n"\ - "#extension GL_ARB_explicit_attrib_location : require\n"\ - "\n"\ - "layout(std140, binding=0) uniform Viewport\n"\ - "{\n"\ - "\tfloat width;\n"\ - "\tfloat height;\n"\ - "};\n"\ - "\n"\ - "layout(location = 0) in vec2 position;\n"\ - "layout(location = 1) in vec2 tex_coord;\n"\ - "\n"\ - "out vec2 fp_tex_coord;\n"\ - "\n"\ - "void main()\n"\ - "{\n"\ - "\t// Transform to clip coordinates (-1,1, -1,1).\n"\ - "\tgl_Position.x = (position.x*2/width) - 1;\n"\ - "\tgl_Position.y = 1 - (position.y*2/height);\n"\ - "\tgl_Position.z = 0.0;\n"\ - "\tgl_Position.w = 1.0;\n"\ - "\tfp_tex_coord = tex_coord;\n"\ - "}\n" - -#define BASICTEX_FRAG \ - "#version 140\n"\ - "\n"\ - "in vec2 fp_tex_coord;\n"\ - "\n"\ - "out vec4 output_colour;\n"\ - "\n"\ - "uniform sampler2D tex;\n"\ - "uniform vec4 colour;\n"\ - "\n"\ - "void main()\n"\ - "{\n"\ - "\toutput_colour = colour;\n"\ - "\toutput_colour.a = texture(tex, fp_tex_coord).r;\n"\ - "}\n" +#define BASICTEX_VERT "shaders/basictex_vert.glsl" +#define BASICTEX_FRAG "shaders/basictex_frag.glsl" using namespace IPDF; using namespace std; static void opengl_debug_callback(GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar* msg, const void *data) { - Error("OpenGL Error (%d): %s", id, msg); + // Don't print out gl Errors we generated. + if (source == GL_DEBUG_SOURCE_APPLICATION) return; + //Error("OpenGL Error (%d): %s", id, msg); + // Spams this message on fglrx, disabling for now because it's damn annoying. + // ERROR: opengl_debug_callback (screen.cpp:21) - OpenGL Error (1011): glObjectLabel failed because (depending on the operation) a referenced binding point is empty; a referenced name is not the name of an object; or the given name is otherwise not valid to this operation (GL_INVALID_VALUE) } Screen::Screen() { + SDL_Init(SDL_INIT_VIDEO); m_window = SDL_CreateWindow("IPDF", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, 800, 600, SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE); @@ -107,25 +73,32 @@ Screen::Screen() glGenVertexArrays(1, &default_vao); glBindVertexArray(default_vao); - //TODO: Error checking. - m_texture_prog.AttachVertexProgram(BASICTEX_VERT); - m_texture_prog.AttachFragmentProgram(BASICTEX_FRAG); - m_texture_prog.Link(); + m_texture_prog.InitialiseShaders(BASICTEX_VERT, BASICTEX_FRAG); m_texture_prog.Use(); // We always want to use the texture bound to texture unit 0. GLint texture_uniform_location = m_texture_prog.GetUniformLocation("tex"); glUniform1i(texture_uniform_location, 0); - m_colour_uniform_location = m_texture_prog.GetUniformLocation("colour"); + m_font_prog.InitialiseShaders(BASICTEX_VERT, "shaders/fonttex_frag.glsl"); + m_font_prog.Use(); + + // We always want to use the texture bound to texture unit 0. + GLint font_texture_uniform_location = m_font_prog.GetUniformLocation("tex"); + glUniform1i(font_texture_uniform_location, 0); + m_colour_uniform_location = m_font_prog.GetUniformLocation("colour"); m_viewport_ubo.SetUsage(GraphicsBuffer::BufferUsageDynamicDraw); m_viewport_ubo.SetType(GraphicsBuffer::BufferTypeUniform); m_debug_font_atlas = 0; - + m_no_quit_requested = true; + m_show_debug_font = true; + m_view = NULL; ResizeViewport(800, 600); - + + + Clear(); Present(); @@ -158,13 +131,13 @@ void Screen::ResizeViewport(int width, int height) bool Screen::PumpEvents() { SDL_Event evt; - bool no_quit_requested = true; + while (SDL_PollEvent(&evt)) { switch (evt.type) { case SDL_QUIT: - no_quit_requested = false; + m_no_quit_requested = false; break; case SDL_WINDOWEVENT: switch (evt.window.event) @@ -180,7 +153,7 @@ bool Screen::PumpEvents() m_last_mouse_y = evt.motion.y; if (m_mouse_handler) { - m_mouse_handler(evt.motion.x, evt.motion.y,evt.motion.state, 0); + m_mouse_handler(evt.motion.x, evt.motion.y,evt.motion.state, 0, this, m_view); } break; case SDL_MOUSEBUTTONDOWN: @@ -189,13 +162,13 @@ bool Screen::PumpEvents() m_last_mouse_y = evt.button.y; if (m_mouse_handler) { - m_mouse_handler(evt.button.x, evt.button.y, evt.button.state?evt.button.button:0, 0); + m_mouse_handler(evt.button.x, evt.button.y, evt.button.state?evt.button.button:0, 0, this, m_view); } break; case SDL_MOUSEWHEEL: if (m_mouse_handler) { - m_mouse_handler(m_last_mouse_x, m_last_mouse_y, 0, evt.wheel.y); + m_mouse_handler(m_last_mouse_x, m_last_mouse_y, 0, evt.wheel.y, this, m_view); } break; case SDL_KEYDOWN: @@ -213,7 +186,7 @@ bool Screen::PumpEvents() break; } } - return no_quit_requested; + return m_no_quit_requested; } void Screen::SetMouseCursor(Screen::MouseCursors cursor) @@ -257,6 +230,48 @@ double Screen::GetLastFrameTimeGPU() const return frame_time_ns/1000000000.0; } +void Screen::RenderPixels(int x, int y, int w, int h, uint8_t *pixels) const +{ + GLenum texture_format = GL_RGBA; + + m_texture_prog.Use(); + GraphicsBuffer quad_vertex_buffer; + quad_vertex_buffer.SetUsage(GraphicsBuffer::BufferUsageStaticDraw); + quad_vertex_buffer.SetType(GraphicsBuffer::BufferTypeVertex); + //rectangular texture == 2 triangles + GLfloat quad[] = { + 0, 0, (float)x, (float)y, + 1, 0, (float)(x+w), (float)y, + 0, 1, (float)x, (float)(y+h), + 1, 1, (float)(x+w), (float)(y+h) + }; + quad_vertex_buffer.Upload(sizeof(GLfloat) * 16, quad); + quad_vertex_buffer.Bind(); + m_viewport_ubo.Bind(); + + glUniform4f(m_colour_uniform_location, 1.0f, 1.0f, 1.0f, 1.0f); + + GLuint texID; + glGenTextures(1, &texID); + glBindTexture(GL_TEXTURE_2D, texID); + + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT); + glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT); + + glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, texture_format, GL_UNSIGNED_BYTE, pixels); + + glEnableVertexAttribArray(0); + glEnableVertexAttribArray(1); + glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 4*sizeof(float), (void*)(2*sizeof(float))); + glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 4*sizeof(float), 0); + glDrawArrays(GL_TRIANGLE_STRIP, 0, 4); + glDisableVertexAttribArray(1); + glDisableVertexAttribArray(0); + +} + void Screen::ScreenShot(const char * filename) const { Debug("Attempting to save BMP to file %s", filename); @@ -371,7 +386,7 @@ void Screen::DebugFontInit(const char *name, float font_size) size_t font_file_size = ftell(font_file); fseek(font_file, 0, SEEK_SET); unsigned char *font_file_data = (unsigned char*)malloc(font_file_size); - fread(font_file_data, 1, font_file_size, font_file); + SDL_assert(fread(font_file_data, 1, font_file_size, font_file) == font_file_size); fclose(font_file); stbtt_BakeFontBitmap(font_file_data,0, font_size, font_atlas_data,1024,1024, 32,96, m_debug_font_rects); free(font_file_data); @@ -383,11 +398,13 @@ void Screen::DebugFontInit(const char *name, float font_size) m_debug_font_vertices.SetUsage(GraphicsBuffer::BufferUsageStreamDraw); m_debug_font_vertices.SetType(GraphicsBuffer::BufferTypeVertex); - m_debug_font_vertices.Upload(8192, nullptr); + m_debug_font_vertices.SetName("m_debug_font_vertices"); + m_debug_font_vertices.Upload(8192,NULL); m_debug_font_vertex_head = 0; m_debug_font_indices.SetUsage(GraphicsBuffer::BufferUsageStreamDraw); m_debug_font_indices.SetType(GraphicsBuffer::BufferTypeIndex); + m_debug_font_indices.SetName("m_debug_font_indices"); m_debug_font_indices.Resize(500); m_debug_font_index_head = 0; } @@ -401,13 +418,13 @@ void Screen::DebugFontClear() void Screen::DebugFontFlush() { - + glPushDebugGroup(GL_DEBUG_SOURCE_APPLICATION, 40, -1, "Screen::DebugFontFlush()"); glEnable(GL_BLEND); glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); glBindTexture(GL_TEXTURE_2D, m_debug_font_atlas); - m_texture_prog.Use(); + m_font_prog.Use(); m_viewport_ubo.Bind(); m_debug_font_vertices.Bind(); m_debug_font_indices.Bind(); @@ -429,16 +446,20 @@ void Screen::DebugFontFlush() m_debug_font_indices.Invalidate(); m_debug_font_vertex_head = 0; m_debug_font_index_head = 0; + + glPopDebugGroup(); } +struct fontvertex +{ + float x, y, s, t; +}; + void Screen::DebugFontPrint(const char* str) { - if (!m_debug_font_atlas) return; + if (!m_debug_font_atlas || !m_show_debug_font) return; - struct fontvertex - { - float x, y, s, t; - }; + glPushDebugGroup(GL_DEBUG_SOURCE_APPLICATION, 41, -1, "Screen::DebugFontPrint()"); BufferBuilder vertexData(m_debug_font_vertices.MapRange(m_debug_font_vertex_head*sizeof(float), m_debug_font_vertices.GetSize() - m_debug_font_vertex_head*sizeof(float), false, true, true), m_debug_font_vertices.GetSize() - m_debug_font_vertex_head*sizeof(float)); BufferBuilder indexData(m_debug_font_indices.MapRange(m_debug_font_index_head*sizeof(uint16_t), m_debug_font_indices.GetSize() - m_debug_font_index_head*sizeof(uint16_t), false, true, true), m_debug_font_indices.GetSize() - m_debug_font_index_head*sizeof(uint16_t)); @@ -451,6 +472,7 @@ void Screen::DebugFontPrint(const char* str) m_debug_font_vertices.UnMap(); DebugFontFlush(); DebugFontPrint(str); + glPopDebugGroup(); return; } if (*str >= 32 && (unsigned char)(*str) < 128) { @@ -483,6 +505,7 @@ void Screen::DebugFontPrint(const char* str) } m_debug_font_indices.UnMap(); m_debug_font_vertices.UnMap(); + glPopDebugGroup(); //DebugFontFlush(); }