pandory500/SDL-mirror
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Adjust the vertices to be over the texel center.

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--HG--
extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%404195
This commit is contained in:
Sam Lantinga 2009-11-19 04:33:35 +00:00
parent ffed135358
commit 78855cf981
2 changed files with 9 additions and 9 deletions
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14
src/video/SDL_renderer_gl.c
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@ -1105,7 +1105,7 @@ GL_RenderPoint(SDL_Renderer * renderer, int x, int y)
(GLfloat) renderer->a * inv255f);
data->glBegin(GL_POINTS);
data->glVertex2i(x, y);
data->glVertex2f(0.5f + x, 0.5f + y);
data->glEnd();
return 0;
@ -1124,8 +1124,8 @@ GL_RenderLine(SDL_Renderer * renderer, int x1, int y1, int x2, int y2)
(GLfloat) renderer->a * inv255f);
data->glBegin(GL_LINES);
data->glVertex2i(x1, y1);
data->glVertex2i(x2, y2);
data->glVertex2f(0.5f + x1, 0.5f + y1);
data->glVertex2f(0.5f + x2, 0.5f + y2);
data->glEnd();
return 0;
@ -1234,13 +1234,13 @@ GL_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
data->glBegin(GL_TRIANGLE_STRIP);
data->glTexCoord2f(minu, minv);
data->glVertex2i(minx, miny);
data->glVertex2f(0.5f + minx, 0.5f + miny);
data->glTexCoord2f(maxu, minv);
data->glVertex2i(maxx, miny);
data->glVertex2f(0.5f + maxx, 0.5f + miny);
data->glTexCoord2f(minu, maxv);
data->glVertex2i(minx, maxy);
data->glVertex2f(0.5f + minx, 0.5f + maxy);
data->glTexCoord2f(maxu, maxv);
data->glVertex2i(maxx, maxy);
data->glVertex2f(0.5f + maxx, 0.5f + maxy);
data->glEnd();
if (texturedata->shader != 0) {